[{"quality_controlled":"1","citation":{"apa":"Wagner, T., &#38; Tiemann, M. (2026). Proton-Conducting Sulfonated Periodic Mesoporous Organosilica. <i>Nanomaterials</i>, <i>16</i>(3), Article 203. <a href=\"https://doi.org/10.3390/nano16030203\">https://doi.org/10.3390/nano16030203</a>","ieee":"T. Wagner and M. Tiemann, “Proton-Conducting Sulfonated Periodic Mesoporous Organosilica,” <i>Nanomaterials</i>, vol. 16, no. 3, Art. no. 203, 2026, doi: <a href=\"https://doi.org/10.3390/nano16030203\">10.3390/nano16030203</a>.","short":"T. Wagner, M. Tiemann, Nanomaterials 16 (2026).","chicago":"Wagner, Tobias, and Michael Tiemann. “Proton-Conducting Sulfonated Periodic Mesoporous Organosilica.” <i>Nanomaterials</i> 16, no. 3 (2026). <a href=\"https://doi.org/10.3390/nano16030203\">https://doi.org/10.3390/nano16030203</a>.","mla":"Wagner, Tobias, and Michael Tiemann. “Proton-Conducting Sulfonated Periodic Mesoporous Organosilica.” <i>Nanomaterials</i>, vol. 16, no. 3, 203, MDPI AG, 2026, doi:<a href=\"https://doi.org/10.3390/nano16030203\">10.3390/nano16030203</a>.","ama":"Wagner T, Tiemann M. Proton-Conducting Sulfonated Periodic Mesoporous Organosilica. <i>Nanomaterials</i>. 2026;16(3). doi:<a href=\"https://doi.org/10.3390/nano16030203\">10.3390/nano16030203</a>","bibtex":"@article{Wagner_Tiemann_2026, title={Proton-Conducting Sulfonated Periodic Mesoporous Organosilica}, volume={16}, DOI={<a href=\"https://doi.org/10.3390/nano16030203\">10.3390/nano16030203</a>}, number={3203}, journal={Nanomaterials}, publisher={MDPI AG}, author={Wagner, Tobias and Tiemann, Michael}, year={2026} }"},"oa":"1","status":"public","user_id":"23547","volume":16,"_id":"63883","publisher":"MDPI AG","abstract":[{"text":"Proton exchange membranes (PEMs) are essential for fuel cells, yet conventional materials like Nafion suffer from humidity dependence and limited thermal stability. This study introduces sulfonated phenylene-bridged periodic mesoporous organosilicas (PMOs) as promising inorganic–organic hybrid PEMs, synthesized via surfactant-templating with varying alkyl chain lengths for different mesopore sizes. Post-synthetic functionalization involves nitration of phenylene moieties, reduction to amines, and ring-opening of propane or butane sultones to graft sulfonic acid groups via flexible spacers, achieving homogeneous distribution along pore walls. Post-functionalization is confirmed by powder X-ray diffraction (PXRD), revealing preserved 2D hexagonal p6mm ordering and phenylene stacking. N2 physisorption shows type IV isotherms with reduced pore volumes and pore sizes. 1H NMR is used to quantify functionalization degrees. Impedance spectroscopy on pressed pellets demonstrates proton conductivities up to 2 × 10−3 S cm−1 at 30 °C and 90% RH, depending on the functionalization degree, confirming sulfonic acid-mediated conduction.","lang":"eng"}],"issue":"3","publication":"Nanomaterials","type":"journal_article","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"date_created":"2026-02-05T09:46:20Z","date_updated":"2026-02-05T09:48:27Z","publication_status":"published","intvolume":"        16","title":"Proton-Conducting Sulfonated Periodic Mesoporous Organosilica","year":"2026","author":[{"first_name":"Tobias","last_name":"Wagner","full_name":"Wagner, Tobias"},{"id":"23547","first_name":"Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann","full_name":"Tiemann, Michael"}],"publication_identifier":{"issn":["2079-4991"]},"doi":"10.3390/nano16030203","main_file_link":[{"open_access":"1"}],"article_number":"203","language":[{"iso":"eng"}]},{"abstract":[{"lang":"eng","text":"Spray-induced gene silencing (SIGS) employing double-stranded RNA (dsRNA) offers a promising, species-specific approach for protecting crops from insect pests such as the cabbage stem flea beetle (Psylliodes chrysocephala). However, the environmental instability of dsRNA presents a major limitation to its field application. In this study, we evaluate two distinct dsRNA formulation strategies for improved stability and delivery: a bottom-up approach using chitosan-based interpolyelectrolyte complexes (IPEC) and a top-down approach employing functionalized mesoporous silica carriers (SBA-15). Both systems were comprehensively characterized in terms of size, surface potential, porosity, and release behavior. The results revealed that IPECs exhibited release kinetics that were approximately one order of magnitude faster than those of SBA-15 across all tested conditions. The two formulations significantly improved dsRNA stability against UV and heat exposure compared to free dsRNA. In feeding assays with P. chrysocephala, both carriers achieved comparable gene silencing efficacy, though dsRNA@IPEC induced more immediate effects, while dsRNA@SBA-15 displayed delayed but ultimately stronger reduction in consumed leaf area, consistent with its slower release kinetics. We demonstrate that despite structural and mechanistic differences, both delivery platforms effectively stabilized and delivered dsRNA, and offered distinct advantages depending on application needs. This work highlights how formulation strategies are key to successful SIGS and supports the development of robust, field-adaptable formulation technologies for sustainable pest management."}],"publication":"International Journal of Biological Macromolecules","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"type":"journal_article","date_created":"2025-12-15T09:54:41Z","intvolume":"       338","article_type":"original","date_updated":"2025-12-17T07:27:57Z","publication_status":"published","publication_identifier":{"issn":["0141-8130"]},"author":[{"last_name":"Moorlach","first_name":"Benjamin W.","full_name":"Moorlach, Benjamin W."},{"full_name":"Epkenhans, Robert","first_name":"Robert","last_name":"Epkenhans"},{"last_name":"Ju","first_name":"Di","full_name":"Ju, Di"},{"last_name":"Ravidas","first_name":"Banuja","full_name":"Ravidas, Banuja"},{"full_name":"Weinberger, Christian","first_name":"Christian","last_name":"Weinberger","id":"11848"},{"id":"23547","full_name":"Tiemann, Michael","orcid":"0000-0003-1711-2722","first_name":"Michael","last_name":"Tiemann"},{"first_name":"Judith","last_name":"Buente","full_name":"Buente, Judith"},{"full_name":"Gaerner, Maik","last_name":"Gaerner","first_name":"Maik"},{"first_name":"Martin","last_name":"Wortmann","full_name":"Wortmann, Martin"},{"last_name":"Scholten","first_name":"Stefan","full_name":"Scholten, Stefan"},{"full_name":"Rostas, Michael","last_name":"Rostas","first_name":"Michael"},{"full_name":"Keil, Waldemar","first_name":"Waldemar","last_name":"Keil"},{"last_name":"Patel","first_name":"Anant V.","full_name":"Patel, Anant V."}],"year":"2026","title":"DsRNA-based carriers with pH-tuneable release kinetics for effective control of Psylliodes chrysocephala","doi":"10.1016/j.ijbiomac.2025.149697","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1"}],"article_number":"149697","quality_controlled":"1","citation":{"ieee":"B. W. Moorlach <i>et al.</i>, “DsRNA-based carriers with pH-tuneable release kinetics for effective control of Psylliodes chrysocephala,” <i>International Journal of Biological Macromolecules</i>, vol. 338, Art. no. 149697, 2026, doi: <a href=\"https://doi.org/10.1016/j.ijbiomac.2025.149697\">10.1016/j.ijbiomac.2025.149697</a>.","apa":"Moorlach, B. W., Epkenhans, R., Ju, D., Ravidas, B., Weinberger, C., Tiemann, M., Buente, J., Gaerner, M., Wortmann, M., Scholten, S., Rostas, M., Keil, W., &#38; Patel, A. V. (2026). DsRNA-based carriers with pH-tuneable release kinetics for effective control of Psylliodes chrysocephala. <i>International Journal of Biological Macromolecules</i>, <i>338</i>, Article 149697. <a href=\"https://doi.org/10.1016/j.ijbiomac.2025.149697\">https://doi.org/10.1016/j.ijbiomac.2025.149697</a>","chicago":"Moorlach, Benjamin W., Robert Epkenhans, Di Ju, Banuja Ravidas, Christian Weinberger, Michael Tiemann, Judith Buente, et al. “DsRNA-Based Carriers with PH-Tuneable Release Kinetics for Effective Control of Psylliodes Chrysocephala.” <i>International Journal of Biological Macromolecules</i> 338 (2026). <a href=\"https://doi.org/10.1016/j.ijbiomac.2025.149697\">https://doi.org/10.1016/j.ijbiomac.2025.149697</a>.","short":"B.W. Moorlach, R. Epkenhans, D. Ju, B. Ravidas, C. Weinberger, M. Tiemann, J. Buente, M. Gaerner, M. Wortmann, S. Scholten, M. Rostas, W. Keil, A.V. Patel, International Journal of Biological Macromolecules 338 (2026).","mla":"Moorlach, Benjamin W., et al. “DsRNA-Based Carriers with PH-Tuneable Release Kinetics for Effective Control of Psylliodes Chrysocephala.” <i>International Journal of Biological Macromolecules</i>, vol. 338, 149697, Elsevier BV, 2026, doi:<a href=\"https://doi.org/10.1016/j.ijbiomac.2025.149697\">10.1016/j.ijbiomac.2025.149697</a>.","bibtex":"@article{Moorlach_Epkenhans_Ju_Ravidas_Weinberger_Tiemann_Buente_Gaerner_Wortmann_Scholten_et al._2026, title={DsRNA-based carriers with pH-tuneable release kinetics for effective control of Psylliodes chrysocephala}, volume={338}, DOI={<a href=\"https://doi.org/10.1016/j.ijbiomac.2025.149697\">10.1016/j.ijbiomac.2025.149697</a>}, number={149697}, journal={International Journal of Biological Macromolecules}, publisher={Elsevier BV}, author={Moorlach, Benjamin W. and Epkenhans, Robert and Ju, Di and Ravidas, Banuja and Weinberger, Christian and Tiemann, Michael and Buente, Judith and Gaerner, Maik and Wortmann, Martin and Scholten, Stefan and et al.}, year={2026} }","ama":"Moorlach BW, Epkenhans R, Ju D, et al. DsRNA-based carriers with pH-tuneable release kinetics for effective control of Psylliodes chrysocephala. <i>International Journal of Biological Macromolecules</i>. 2026;338. doi:<a href=\"https://doi.org/10.1016/j.ijbiomac.2025.149697\">10.1016/j.ijbiomac.2025.149697</a>"},"oa":"1","status":"public","volume":338,"user_id":"23547","_id":"63099","publisher":"Elsevier BV"},{"quality_controlled":"1","citation":{"ieee":"Y. Zhao, C. Weinberger, M. Tiemann, and C. Schmidt, “NMR Investigation of Water in Mesoporous Silica Materials With Different Surfaces,” <i>Analysis &#38; Sensing</i>, vol. 6, no. 5, Art. no. e70109, 2026, doi: <a href=\"https://doi.org/10.1002/anse.70109\">10.1002/anse.70109</a>.","apa":"Zhao, Y., Weinberger, C., Tiemann, M., &#38; Schmidt, C. (2026). NMR Investigation of Water in Mesoporous Silica Materials With Different Surfaces. <i>Analysis &#38; Sensing</i>, <i>6</i>(5), Article e70109. <a href=\"https://doi.org/10.1002/anse.70109\">https://doi.org/10.1002/anse.70109</a>","short":"Y. Zhao, C. Weinberger, M. Tiemann, C. Schmidt, Analysis &#38; Sensing 6 (2026).","chicago":"Zhao, Yanjing, Christian Weinberger, Michael Tiemann, and Claudia Schmidt. “NMR Investigation of Water in Mesoporous Silica Materials With Different Surfaces.” <i>Analysis &#38; Sensing</i> 6, no. 5 (2026). <a href=\"https://doi.org/10.1002/anse.70109\">https://doi.org/10.1002/anse.70109</a>.","mla":"Zhao, Yanjing, et al. “NMR Investigation of Water in Mesoporous Silica Materials With Different Surfaces.” <i>Analysis &#38; Sensing</i>, vol. 6, no. 5, e70109, Wiley, 2026, doi:<a href=\"https://doi.org/10.1002/anse.70109\">10.1002/anse.70109</a>.","bibtex":"@article{Zhao_Weinberger_Tiemann_Schmidt_2026, title={NMR Investigation of Water in Mesoporous Silica Materials With Different Surfaces}, volume={6}, DOI={<a href=\"https://doi.org/10.1002/anse.70109\">10.1002/anse.70109</a>}, number={5e70109}, journal={Analysis &#38; Sensing}, publisher={Wiley}, author={Zhao, Yanjing and Weinberger, Christian and Tiemann, Michael and Schmidt, Claudia}, year={2026} }","ama":"Zhao Y, Weinberger C, Tiemann M, Schmidt C. NMR Investigation of Water in Mesoporous Silica Materials With Different Surfaces. <i>Analysis &#38; Sensing</i>. 2026;6(5). doi:<a href=\"https://doi.org/10.1002/anse.70109\">10.1002/anse.70109</a>"},"oa":"1","status":"public","user_id":"23547","volume":6,"_id":"67325","publisher":"Wiley","abstract":[{"text":"The influence of the hydrophilicity of mesoporous silica on wetting with water was investigated by comparing a standard hydrophilic MCM-41 and a partially hydrophobicized material obtained by trimethylsilylation of MCM-41. The materials were characterized using X-ray diffraction, N2 physisorption, thermogravimetric analysis, infrared spectroscopy, as well as 29Si and 13C solid-state nuclear magnetic resonance spectroscopy. Trimethylsilylation leads to a reduction of the pore diameter (determined using density functional theory) from 3.8 to 3.6 nm. Using proton solid-state nuclear magnetic resonance (NMR) under magic-angle spinning, it was found that the filling of these narrow pores with increasing amounts of water follows an axial mode, independent of surface hydrophilicity. The axial model of pore-filling is supported by the coexistence of two characteristic 1H NMR water signals, one from physisorbed water molecules, which can exchange protons with silanol groups, and one from bulk-like water in completely filled pores, where water molecules are in exchange between sites at the pore wall and sites closer to the center of the pore.","lang":"eng"}],"publication":"Analysis & Sensing","issue":"5","type":"journal_article","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"date_created":"2026-10-01T14:13:13Z","date_updated":"2026-10-01T14:17:52Z","publication_status":"published","intvolume":"         6","year":"2026","title":"NMR Investigation of Water in Mesoporous Silica Materials With Different Surfaces","author":[{"last_name":"Zhao","first_name":"Yanjing","full_name":"Zhao, Yanjing"},{"first_name":"Christian","last_name":"Weinberger","full_name":"Weinberger, Christian","id":"11848"},{"first_name":"Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann","full_name":"Tiemann, Michael","id":"23547"},{"full_name":"Schmidt, Claudia","first_name":"Claudia","orcid":"0000-0003-3179-9997","last_name":"Schmidt","id":"466"}],"publication_identifier":{"issn":["2629-2742","2629-2742"]},"doi":"10.1002/anse.70109","main_file_link":[{"open_access":"1"}],"article_number":"e70109","language":[{"iso":"eng"}]},{"year":"2026","title":"Isoreticular Expansion in Porous Aluminum(III) and Gallium(III) Phosphonates: Synthesis, Structure, and Properties","publication_identifier":{"issn":["0897-4756","1520-5002"]},"author":[{"full_name":"Theissen, Jennifer","first_name":"Jennifer","last_name":"Theissen"},{"last_name":"Radke","first_name":"Marvin","full_name":"Radke, Marvin"},{"full_name":"Mangelsen, Sebastian","first_name":"Sebastian","last_name":"Mangelsen"},{"last_name":"Derveaux","first_name":"Elien","full_name":"Derveaux, Elien"},{"full_name":"Narváez Adams, Roberth Mateo","first_name":"Roberth Mateo","last_name":"Narváez Adams"},{"full_name":"Wagner, Tobias","last_name":"Wagner","first_name":"Tobias"},{"full_name":"Lopau, Jasper","last_name":"Lopau","first_name":"Jasper"},{"full_name":"Näther, Christian","last_name":"Näther","first_name":"Christian"},{"full_name":"Nelle, Christian","last_name":"Nelle","first_name":"Christian"},{"full_name":"Struve, Jörn","first_name":"Jörn","last_name":"Struve"},{"first_name":"Felix","last_name":"Steinke","full_name":"Steinke, Felix"},{"full_name":"Gándara Loe, Jesús","first_name":"Jesús","last_name":"Gándara Loe"},{"last_name":"Gys","first_name":"Nick","full_name":"Gys, Nick"},{"last_name":"Hauffman","first_name":"Tom","full_name":"Hauffman, Tom"},{"id":"23547","last_name":"Tiemann","first_name":"Michael","orcid":"0000-0003-1711-2722","full_name":"Tiemann, Michael"},{"first_name":"Frederik","last_name":"Tielens","full_name":"Tielens, Frederik"},{"full_name":"Adriaensens, Peter","last_name":"Adriaensens","first_name":"Peter"},{"first_name":"Sebastian","last_name":"Henke","full_name":"Henke, Sebastian"},{"full_name":"Marchal, Wouter","first_name":"Wouter","last_name":"Marchal"},{"full_name":"Ameloot, Rob","last_name":"Ameloot","first_name":"Rob"},{"last_name":"Stock","first_name":"Norbert","full_name":"Stock, Norbert"}],"date_updated":"2026-10-15T07:59:28Z","publication_status":"published","intvolume":"        38","main_file_link":[{"open_access":"1"}],"language":[{"iso":"eng"}],"doi":"10.1021/acs.chemmater.6c01336","issue":"16","publication":"Chemistry of Materials","abstract":[{"lang":"eng","text":"We report the synthesis, structural elucidation, and establishment of structure−property relationships for two metal−organic frameworks (MOFs), [M(OH)(H2BPD)]·xH2O (M = Al3+, Ga3+, x = 11–13), denoted as M-CAU-67, employing the ditopic linker molecule N,N′-4,4′ bipiperidine bis(methylenephosphonic acid) (H4BPD). The title compounds can be synthesized on a milligram scale under hydrothermal conditions, while gram-scale synthesis was realized under reflux conditions. Single-crystal X-ray diffraction (SCXRD) revealed an isoreticular, expanded MIL-91 type structure, representing a rare case of isoreticular expansion in porous metal phosphonates. The framework structure was confirmed by Rietveld refinement against powder X-ray diffraction (PXRD) data and further validated by solid-state NMR spectroscopy (31P MAS, 27Al 3Q MAS). Solvent-exchange experiments and variable-humidity/temperature PXRD data revealed high framework flexibility. The compounds show permanent microporosity and a complex, polarity- and size-dependent sorption behavior toward gases and vapors."}],"date_created":"2026-10-01T14:16:40Z","type":"journal_article","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"status":"public","page":"8463-8475","publisher":"American Chemical Society (ACS)","_id":"67327","user_id":"23547","volume":38,"citation":{"ama":"Theissen J, Radke M, Mangelsen S, et al. Isoreticular Expansion in Porous Aluminum(III) and Gallium(III) Phosphonates: Synthesis, Structure, and Properties. <i>Chemistry of Materials</i>. 2026;38(16):8463-8475. doi:<a href=\"https://doi.org/10.1021/acs.chemmater.6c01336\">10.1021/acs.chemmater.6c01336</a>","bibtex":"@article{Theissen_Radke_Mangelsen_Derveaux_Narváez Adams_Wagner_Lopau_Näther_Nelle_Struve_et al._2026, title={Isoreticular Expansion in Porous Aluminum(III) and Gallium(III) Phosphonates: Synthesis, Structure, and Properties}, volume={38}, DOI={<a href=\"https://doi.org/10.1021/acs.chemmater.6c01336\">10.1021/acs.chemmater.6c01336</a>}, number={16}, journal={Chemistry of Materials}, publisher={American Chemical Society (ACS)}, author={Theissen, Jennifer and Radke, Marvin and Mangelsen, Sebastian and Derveaux, Elien and Narváez Adams, Roberth Mateo and Wagner, Tobias and Lopau, Jasper and Näther, Christian and Nelle, Christian and Struve, Jörn and et al.}, year={2026}, pages={8463–8475} }","mla":"Theissen, Jennifer, et al. “Isoreticular Expansion in Porous Aluminum(III) and Gallium(III) Phosphonates: Synthesis, Structure, and Properties.” <i>Chemistry of Materials</i>, vol. 38, no. 16, American Chemical Society (ACS), 2026, pp. 8463–75, doi:<a href=\"https://doi.org/10.1021/acs.chemmater.6c01336\">10.1021/acs.chemmater.6c01336</a>.","chicago":"Theissen, Jennifer, Marvin Radke, Sebastian Mangelsen, Elien Derveaux, Roberth Mateo Narváez Adams, Tobias Wagner, Jasper Lopau, et al. “Isoreticular Expansion in Porous Aluminum(III) and Gallium(III) Phosphonates: Synthesis, Structure, and Properties.” <i>Chemistry of Materials</i> 38, no. 16 (2026): 8463–75. <a href=\"https://doi.org/10.1021/acs.chemmater.6c01336\">https://doi.org/10.1021/acs.chemmater.6c01336</a>.","short":"J. Theissen, M. Radke, S. Mangelsen, E. Derveaux, R.M. Narváez Adams, T. Wagner, J. Lopau, C. Näther, C. Nelle, J. Struve, F. Steinke, J. Gándara Loe, N. Gys, T. Hauffman, M. Tiemann, F. Tielens, P. Adriaensens, S. Henke, W. Marchal, R. Ameloot, N. Stock, Chemistry of Materials 38 (2026) 8463–8475.","apa":"Theissen, J., Radke, M., Mangelsen, S., Derveaux, E., Narváez Adams, R. M., Wagner, T., Lopau, J., Näther, C., Nelle, C., Struve, J., Steinke, F., Gándara Loe, J., Gys, N., Hauffman, T., Tiemann, M., Tielens, F., Adriaensens, P., Henke, S., Marchal, W., … Stock, N. (2026). Isoreticular Expansion in Porous Aluminum(III) and Gallium(III) Phosphonates: Synthesis, Structure, and Properties. <i>Chemistry of Materials</i>, <i>38</i>(16), 8463–8475. <a href=\"https://doi.org/10.1021/acs.chemmater.6c01336\">https://doi.org/10.1021/acs.chemmater.6c01336</a>","ieee":"J. Theissen <i>et al.</i>, “Isoreticular Expansion in Porous Aluminum(III) and Gallium(III) Phosphonates: Synthesis, Structure, and Properties,” <i>Chemistry of Materials</i>, vol. 38, no. 16, pp. 8463–8475, 2026, doi: <a href=\"https://doi.org/10.1021/acs.chemmater.6c01336\">10.1021/acs.chemmater.6c01336</a>."},"quality_controlled":"1","oa":"1"},{"quality_controlled":"1","citation":{"mla":"Zhao, Zhenyu, et al. “Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76).” <i>Advanced Functional Materials</i>, e11190, Wiley, 2026, doi:<a href=\"https://doi.org/10.1002/adfm.202511190\">10.1002/adfm.202511190</a>.","bibtex":"@article{Zhao_Weinberger_Steube_Bauer_Brehm_Tiemann_2026, title={Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)}, DOI={<a href=\"https://doi.org/10.1002/adfm.202511190\">10.1002/adfm.202511190</a>}, number={e11190}, journal={Advanced Functional Materials}, publisher={Wiley}, author={Zhao, Zhenyu and Weinberger, Christian and Steube, Jakob and Bauer, Matthias and Brehm, Martin and Tiemann, Michael}, year={2026} }","ama":"Zhao Z, Weinberger C, Steube J, Bauer M, Brehm M, Tiemann M. Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76). <i>Advanced Functional Materials</i>. Published online 2026. doi:<a href=\"https://doi.org/10.1002/adfm.202511190\">10.1002/adfm.202511190</a>","ieee":"Z. Zhao, C. Weinberger, J. Steube, M. Bauer, M. Brehm, and M. Tiemann, “Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76),” <i>Advanced Functional Materials</i>, Art. no. e11190, 2026, doi: <a href=\"https://doi.org/10.1002/adfm.202511190\">10.1002/adfm.202511190</a>.","apa":"Zhao, Z., Weinberger, C., Steube, J., Bauer, M., Brehm, M., &#38; Tiemann, M. (2026). Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76). <i>Advanced Functional Materials</i>, Article e11190. <a href=\"https://doi.org/10.1002/adfm.202511190\">https://doi.org/10.1002/adfm.202511190</a>","short":"Z. Zhao, C. Weinberger, J. Steube, M. Bauer, M. Brehm, M. Tiemann, Advanced Functional Materials (2026).","chicago":"Zhao, Zhenyu, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, and Michael Tiemann. “Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76).” <i>Advanced Functional Materials</i>, 2026. <a href=\"https://doi.org/10.1002/adfm.202511190\">https://doi.org/10.1002/adfm.202511190</a>."},"oa":"1","status":"public","user_id":"23547","publisher":"Wiley","_id":"62816","abstract":[{"lang":"eng","text":"The increasing demand for advanced sensing technologies drives the development of chemical sensors using innovative materials. In gas sensing, optical sensors are often used to detect gases such as CO, NOx, and O2. Oxygen sensors typically incorporate dyes into oxygen-permeable matrices like polymers, silica, or zeolites. Alternatively, semiconductor surface chemistry can enable O2 detection. However, these approaches are often limited by slow response and recovery times and low selectivity, restricting their practical applications. The metal-organic framework MOF-76(Eu) and its yttrium-modified variant, MOF-76(Eu/Y) are reported to exhibit highly reversible and fast optical responses to varying O2 concentrations. Time-resolved emission measurements are performed over short (seconds) and long (hours) timescales using N2 and synthetic air mixtures. Cross-sensitivity to humidity is analyzed. Multichannel scaling photon-counting experiments confirm quenching at the linker level, as the emission lifetime remains nearly constant. Yttrium significantly improves stability and performance at room temperature. Structural and optical changes induced by yttrium are investigated. Additionally, MIL-78(Eu), another Eu-BTC-based MOF with a different coordination environment, is synthesized. Unlike MOF-76(Eu), MIL-78(Eu) exhibits distinct optical properties but lacks a reversible response to O2. These results highlight the potential of MOF-76-based materials for high-performance O2 sensing."}],"publication":"Advanced Functional Materials","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"},{"_id":"230"}],"type":"journal_article","date_created":"2025-12-03T17:09:28Z","date_updated":"2026-10-15T08:01:40Z","publication_status":"published","author":[{"last_name":"Zhao","first_name":"Zhenyu","full_name":"Zhao, Zhenyu"},{"id":"11848","full_name":"Weinberger, Christian","last_name":"Weinberger","first_name":"Christian"},{"full_name":"Steube, Jakob","last_name":"Steube","first_name":"Jakob","orcid":"0000-0003-3178-4429","id":"40342"},{"id":"47241","full_name":"Bauer, Matthias","first_name":"Matthias","last_name":"Bauer","orcid":"0000-0002-9294-6076"},{"last_name":"Brehm","first_name":"Martin","full_name":"Brehm, Martin","id":"100167"},{"full_name":"Tiemann, Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann","first_name":"Michael","id":"23547"}],"publication_identifier":{"issn":["1616-301X","1616-3028"]},"year":"2026","title":"Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)","doi":"10.1002/adfm.202511190","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1"}],"article_number":"e11190"},{"project":[{"_id":"1130","name":"Exploration of optoelectronic properties of metal oxides used in gas sensors and solar cells"}],"citation":{"ama":"Voth S, Zhao Z, Baier D, et al. Role of Irradiance in Light-Activated In<sub>2</sub>O<sub>3</sub> Gas Sensors: Why More Light Is Not Always Better. <i>ACS Sensors</i>. 2026;11(7). doi:<a href=\"https://doi.org/10.1021/acssensors.6c01100\">10.1021/acssensors.6c01100</a>","bibtex":"@article{Voth_Zhao_Baier_Glass_Elgabarty_Sandberg_Grundmeier_Tiemann_Smått_Anttu_et al._2026, title={Role of Irradiance in Light-Activated In<sub>2</sub>O<sub>3</sub> Gas Sensors: Why More Light Is Not Always Better}, volume={11}, DOI={<a href=\"https://doi.org/10.1021/acssensors.6c01100\">10.1021/acssensors.6c01100</a>}, number={7acssensors.6c01100}, journal={ACS Sensors}, publisher={American Chemical Society (ACS)}, author={Voth, Sven and Zhao, Zhenyu and Baier, Dominik and Glass, Alexandra and Elgabarty, Hossam and Sandberg, Oskar J. and Grundmeier, Guido and Tiemann, Michael and Smått, Jan-Henrik and Anttu, Nicklas and et al.}, year={2026} }","mla":"Voth, Sven, et al. “Role of Irradiance in Light-Activated In<sub>2</sub>O<sub>3</sub> Gas Sensors: Why More Light Is Not Always Better.” <i>ACS Sensors</i>, vol. 11, no. 7, acssensors.6c01100, American Chemical Society (ACS), 2026, doi:<a href=\"https://doi.org/10.1021/acssensors.6c01100\">10.1021/acssensors.6c01100</a>.","chicago":"Voth, Sven, Zhenyu Zhao, Dominik Baier, Alexandra Glass, Hossam Elgabarty, Oskar J. Sandberg, Guido Grundmeier, et al. “Role of Irradiance in Light-Activated In<sub>2</sub>O<sub>3</sub> Gas Sensors: Why More Light Is Not Always Better.” <i>ACS Sensors</i> 11, no. 7 (2026). <a href=\"https://doi.org/10.1021/acssensors.6c01100\">https://doi.org/10.1021/acssensors.6c01100</a>.","short":"S. Voth, Z. Zhao, D. Baier, A. Glass, H. Elgabarty, O.J. Sandberg, G. Grundmeier, M. Tiemann, J.-H. Smått, N. Anttu, T. de los Arcos, C. Weinberger, ACS Sensors 11 (2026).","apa":"Voth, S., Zhao, Z., Baier, D., Glass, A., Elgabarty, H., Sandberg, O. J., Grundmeier, G., Tiemann, M., Smått, J.-H., Anttu, N., de los Arcos, T., &#38; Weinberger, C. (2026). Role of Irradiance in Light-Activated In<sub>2</sub>O<sub>3</sub> Gas Sensors: Why More Light Is Not Always Better. <i>ACS Sensors</i>, <i>11</i>(7), Article acssensors.6c01100. <a href=\"https://doi.org/10.1021/acssensors.6c01100\">https://doi.org/10.1021/acssensors.6c01100</a>","ieee":"S. Voth <i>et al.</i>, “Role of Irradiance in Light-Activated In<sub>2</sub>O<sub>3</sub> Gas Sensors: Why More Light Is Not Always Better,” <i>ACS Sensors</i>, vol. 11, no. 7, Art. no. acssensors.6c01100, 2026, doi: <a href=\"https://doi.org/10.1021/acssensors.6c01100\">10.1021/acssensors.6c01100</a>."},"user_id":"23547","volume":11,"_id":"66036","publisher":"American Chemical Society (ACS)","status":"public","keyword":["resistive gas sensing","indium oxide","photoactivation","irradiance","photoconductivity","charge carrier dynamics","oxygen vacancies"],"type":"journal_article","department":[{"_id":"307"},{"_id":"35"},{"_id":"230"},{"_id":"2"}],"date_created":"2026-06-24T10:36:11Z","abstract":[{"text":"Light-assisted metal oxide-based chemiresistive gas sensors are widely explored for operation at relatively low temperatures, yet the investigation of the role of irradiance, as opposed to wavelength, remains underrepresented. Here, we systematically quantify the irradiance-dependent behavior of ordered mesoporous In2O3 under visible light illumination. Photoconductivity measurements reveal two distinct irradiance regimes consistent with trap-limited transport at low power and recombination- or saturation-limited transport at high power. Gas sensing experiments towards CO and H2 show a pronounced non-monotonic response, reaching maximum responses of 0.74 for 135 ppm CO at 67 mW cm−2 and 0.64 for 90 ppm H2 at 11 mW cm−2, followed by strong suppression at higher irradiance. Illumination also accelerated the response kinetics. At 60 ppm, t90 decreases from 96 to 12 s for CO and 141 to 27 s for H2, corresponding to an 8- and 5-fold faster response time, respectively. Near-ambient pressure-XPS under controlled atmosphere and density functional theory calculations indicate defect-mediated excitation. Oxygen vacancy states and illumination-induced modification of surface oxygen species govern this behavior. The results establish irradiance as a critical mechanistic parameter that determines whether In2O3 operates in a surface-controlled or bulk photoconductive regime. These findings highlight the need to explicitly optimize and report irradiance in illuminated gas sensor studies, and not only the power consumption of the light source.","lang":"eng"}],"publication":"ACS Sensors","issue":"7","doi":"10.1021/acssensors.6c01100","article_number":"acssensors.6c01100","language":[{"iso":"eng"}],"date_updated":"2026-10-15T08:04:24Z","publication_status":"published","intvolume":"        11","article_type":"original","year":"2026","title":"Role of Irradiance in Light-Activated In<sub>2</sub>O<sub>3</sub> Gas Sensors: Why More Light Is Not Always Better","publication_identifier":{"issn":["2379-3694","2379-3694"]},"author":[{"first_name":"Sven","last_name":"Voth","full_name":"Voth, Sven"},{"full_name":"Zhao, Zhenyu","last_name":"Zhao","first_name":"Zhenyu"},{"first_name":"Dominik","last_name":"Baier","full_name":"Baier, Dominik"},{"full_name":"Glass, Alexandra","last_name":"Glass","first_name":"Alexandra"},{"id":"60250","orcid":"0000-0002-4945-1481","first_name":"Hossam","last_name":"Elgabarty","full_name":"Elgabarty, Hossam"},{"full_name":"Sandberg, Oskar J.","first_name":"Oskar J.","last_name":"Sandberg"},{"full_name":"Grundmeier, Guido","first_name":"Guido","last_name":"Grundmeier","id":"194"},{"id":"23547","full_name":"Tiemann, Michael","last_name":"Tiemann","first_name":"Michael","orcid":"0000-0003-1711-2722"},{"last_name":"Smått","first_name":"Jan-Henrik","full_name":"Smått, Jan-Henrik"},{"full_name":"Anttu, Nicklas","last_name":"Anttu","first_name":"Nicklas"},{"first_name":"Teresa","last_name":"de los Arcos","full_name":"de los Arcos, Teresa"},{"id":"11848","full_name":"Weinberger, Christian","first_name":"Christian","last_name":"Weinberger"}]},{"quality_controlled":"1","citation":{"chicago":"Zhao, Zhenyu, and Michael Tiemann. “Defect Structure-Performance Correlation in Eu<sup>3</sup><sup>+</sup>@UiO-66: Design of Coordination Sites for Rapid Optical O₂ Sensing.” <i>Journal of Materials Chemistry C</i> 14 (2026): 4743–52. <a href=\"https://doi.org/10.1039/d5tc04319k\">https://doi.org/10.1039/d5tc04319k</a>.","short":"Z. Zhao, M. Tiemann, Journal of Materials Chemistry C 14 (2026) 4743–4752.","apa":"Zhao, Z., &#38; Tiemann, M. (2026). Defect Structure-Performance Correlation in Eu<sup>3</sup><sup>+</sup>@UiO-66: Design of Coordination Sites for Rapid Optical O₂ Sensing. <i>Journal of Materials Chemistry C</i>, <i>14</i>, 4743–4752. <a href=\"https://doi.org/10.1039/d5tc04319k\">https://doi.org/10.1039/d5tc04319k</a>","ieee":"Z. Zhao and M. Tiemann, “Defect Structure-Performance Correlation in Eu<sup>3</sup><sup>+</sup>@UiO-66: Design of Coordination Sites for Rapid Optical O₂ Sensing,” <i>Journal of Materials Chemistry C</i>, vol. 14, pp. 4743–4752, 2026, doi: <a href=\"https://doi.org/10.1039/d5tc04319k\">10.1039/d5tc04319k</a>.","ama":"Zhao Z, Tiemann M. Defect Structure-Performance Correlation in Eu<sup>3</sup><sup>+</sup>@UiO-66: Design of Coordination Sites for Rapid Optical O₂ Sensing. <i>Journal of Materials Chemistry C</i>. 2026;14:4743-4752. doi:<a href=\"https://doi.org/10.1039/d5tc04319k\">10.1039/d5tc04319k</a>","bibtex":"@article{Zhao_Tiemann_2026, title={Defect Structure-Performance Correlation in Eu<sup>3</sup><sup>+</sup>@UiO-66: Design of Coordination Sites for Rapid Optical O₂ Sensing}, volume={14}, DOI={<a href=\"https://doi.org/10.1039/d5tc04319k\">10.1039/d5tc04319k</a>}, journal={Journal of Materials Chemistry C}, publisher={Royal Society of Chemistry (RSC)}, author={Zhao, Zhenyu and Tiemann, Michael}, year={2026}, pages={4743–4752} }","mla":"Zhao, Zhenyu, and Michael Tiemann. “Defect Structure-Performance Correlation in Eu<sup>3</sup><sup>+</sup>@UiO-66: Design of Coordination Sites for Rapid Optical O₂ Sensing.” <i>Journal of Materials Chemistry C</i>, vol. 14, Royal Society of Chemistry (RSC), 2026, pp. 4743–52, doi:<a href=\"https://doi.org/10.1039/d5tc04319k\">10.1039/d5tc04319k</a>."},"oa":"1","status":"public","volume":14,"user_id":"23547","_id":"63721","publisher":"Royal Society of Chemistry (RSC)","page":"4743-4752","abstract":[{"text":"<jats:p>Defect engineering offers an effective route to tailor the local coordination environment, gas transport and excited-state processes in metal-organic frameworks (MOFs). We establish a quantitative structure-property relationship linking defect-modulated porosity...</jats:p>","lang":"eng"}],"publication":"Journal of Materials Chemistry C","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"},{"_id":"230"}],"type":"journal_article","date_created":"2026-01-23T13:26:36Z","intvolume":"        14","publication_status":"published","date_updated":"2026-10-15T08:06:09Z","publication_identifier":{"issn":["2050-7526","2050-7534"]},"author":[{"first_name":"Zhenyu","last_name":"Zhao","full_name":"Zhao, Zhenyu"},{"id":"23547","last_name":"Tiemann","orcid":"0000-0003-1711-2722","first_name":"Michael","full_name":"Tiemann, Michael"}],"title":"Defect Structure-Performance Correlation in Eu³⁺@UiO-66: Design of Coordination Sites for Rapid Optical O₂ Sensing","year":"2026","doi":"10.1039/d5tc04319k","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1"}]},{"author":[{"full_name":"Kothe, Linda","last_name":"Kothe","first_name":"Linda"},{"first_name":"Josefin","last_name":"Klippstein","full_name":"Klippstein, Josefin"},{"first_name":"Marvin","last_name":"Kloß","full_name":"Kloß, Marvin"},{"first_name":"Marc","last_name":"Wengenroth","full_name":"Wengenroth, Marc"},{"full_name":"Poeplau, Michael","first_name":"Michael","last_name":"Poeplau"},{"full_name":"Ester, Stephan","last_name":"Ester","first_name":"Stephan"},{"id":"23547","full_name":"Tiemann, Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann","first_name":"Michael"}],"publication_identifier":{"issn":["1439-4235","1439-7641"]},"year":"2025","title":"Oxygen‐dependent Photoluminescence and Electrical Conductance of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description","intvolume":"        26","article_type":"original","date_updated":"2025-04-04T06:20:07Z","publication_status":"published","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1"}],"doi":"10.1002/cphc.202400984","publication":"ChemPhysChem","abstract":[{"lang":"eng","text":"Zinc tin oxide (ZTO) is investigated as a photoluminescent sensor for oxygen (O2); chemisorbed oxygen quenches the luminescence intensity. At the same time, ZTO is also studied as a resistive sensor; being an n‐type semiconductor, its electrical conductance decreases by adsorption of oxygen. Both phenomena can be exploited for quantitative O2 sensing. The respective sensor responses can be described by the same modified Stern‐Volmer model that distinguishes between accessible and non‐accessible luminescence centers or charge carriers, respectively. The impact of the temperature is studied in the range from room temperature up to 150 °C."}],"date_created":"2025-01-15T14:12:34Z","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"type":"journal_article","status":"public","_id":"58193","publisher":"Wiley","page":"e202400984","volume":26,"user_id":"23547","citation":{"ama":"Kothe L, Klippstein J, Kloß M, et al. Oxygen‐dependent Photoluminescence and Electrical Conductance of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description. <i>ChemPhysChem</i>. 2025;26:e202400984. doi:<a href=\"https://doi.org/10.1002/cphc.202400984\">10.1002/cphc.202400984</a>","bibtex":"@article{Kothe_Klippstein_Kloß_Wengenroth_Poeplau_Ester_Tiemann_2025, title={Oxygen‐dependent Photoluminescence and Electrical Conductance of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description}, volume={26}, DOI={<a href=\"https://doi.org/10.1002/cphc.202400984\">10.1002/cphc.202400984</a>}, journal={ChemPhysChem}, publisher={Wiley}, author={Kothe, Linda and Klippstein, Josefin and Kloß, Marvin and Wengenroth, Marc and Poeplau, Michael and Ester, Stephan and Tiemann, Michael}, year={2025}, pages={e202400984} }","mla":"Kothe, Linda, et al. “Oxygen‐dependent Photoluminescence and Electrical Conductance of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description.” <i>ChemPhysChem</i>, vol. 26, Wiley, 2025, p. e202400984, doi:<a href=\"https://doi.org/10.1002/cphc.202400984\">10.1002/cphc.202400984</a>.","short":"L. Kothe, J. Klippstein, M. Kloß, M. Wengenroth, M. Poeplau, S. Ester, M. Tiemann, ChemPhysChem 26 (2025) e202400984.","chicago":"Kothe, Linda, Josefin Klippstein, Marvin Kloß, Marc Wengenroth, Michael Poeplau, Stephan Ester, and Michael Tiemann. “Oxygen‐dependent Photoluminescence and Electrical Conductance of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description.” <i>ChemPhysChem</i> 26 (2025): e202400984. <a href=\"https://doi.org/10.1002/cphc.202400984\">https://doi.org/10.1002/cphc.202400984</a>.","apa":"Kothe, L., Klippstein, J., Kloß, M., Wengenroth, M., Poeplau, M., Ester, S., &#38; Tiemann, M. (2025). Oxygen‐dependent Photoluminescence and Electrical Conductance of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description. <i>ChemPhysChem</i>, <i>26</i>, e202400984. <a href=\"https://doi.org/10.1002/cphc.202400984\">https://doi.org/10.1002/cphc.202400984</a>","ieee":"L. Kothe <i>et al.</i>, “Oxygen‐dependent Photoluminescence and Electrical Conductance of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description,” <i>ChemPhysChem</i>, vol. 26, p. e202400984, 2025, doi: <a href=\"https://doi.org/10.1002/cphc.202400984\">10.1002/cphc.202400984</a>."},"quality_controlled":"1","oa":"1"},{"citation":{"bibtex":"@article{Probst_Lindemann_Bruckner_Atwi_Wang_Fischer_Högler_Bauer_Hansen_Dyballa_et al._2025, title={Ring-Expansion Metathesis Polymerization under Confinement}, volume={147}, DOI={<a href=\"https://doi.org/10.1021/jacs.4c18171\">10.1021/jacs.4c18171</a>}, number={10}, journal={Journal of the American Chemical Society}, publisher={American Chemical Society (ACS)}, author={Probst, Patrick and Lindemann, Moritz and Bruckner, Johanna R. and Atwi, Boshra and Wang, Dongren and Fischer, Felix Richard and Högler, Marc and Bauer, Matthias and Hansen, Niels and Dyballa, Michael and et al.}, year={2025}, pages={8741–8750} }","ama":"Probst P, Lindemann M, Bruckner JR, et al. Ring-Expansion Metathesis Polymerization under Confinement. <i>Journal of the American Chemical Society</i>. 2025;147(10):8741-8750. doi:<a href=\"https://doi.org/10.1021/jacs.4c18171\">10.1021/jacs.4c18171</a>","mla":"Probst, Patrick, et al. “Ring-Expansion Metathesis Polymerization under Confinement.” <i>Journal of the American Chemical Society</i>, vol. 147, no. 10, American Chemical Society (ACS), 2025, pp. 8741–50, doi:<a href=\"https://doi.org/10.1021/jacs.4c18171\">10.1021/jacs.4c18171</a>.","short":"P. Probst, M. Lindemann, J.R. Bruckner, B. Atwi, D. Wang, F.R. Fischer, M. Högler, M. Bauer, N. Hansen, M. Dyballa, M.R. Buchmeiser, Journal of the American Chemical Society 147 (2025) 8741–8750.","chicago":"Probst, Patrick, Moritz Lindemann, Johanna R. Bruckner, Boshra Atwi, Dongren Wang, Felix Richard Fischer, Marc Högler, et al. “Ring-Expansion Metathesis Polymerization under Confinement.” <i>Journal of the American Chemical Society</i> 147, no. 10 (2025): 8741–50. <a href=\"https://doi.org/10.1021/jacs.4c18171\">https://doi.org/10.1021/jacs.4c18171</a>.","ieee":"P. Probst <i>et al.</i>, “Ring-Expansion Metathesis Polymerization under Confinement,” <i>Journal of the American Chemical Society</i>, vol. 147, no. 10, pp. 8741–8750, 2025, doi: <a href=\"https://doi.org/10.1021/jacs.4c18171\">10.1021/jacs.4c18171</a>.","apa":"Probst, P., Lindemann, M., Bruckner, J. R., Atwi, B., Wang, D., Fischer, F. R., Högler, M., Bauer, M., Hansen, N., Dyballa, M., &#38; Buchmeiser, M. R. (2025). Ring-Expansion Metathesis Polymerization under Confinement. <i>Journal of the American Chemical Society</i>, <i>147</i>(10), 8741–8750. <a href=\"https://doi.org/10.1021/jacs.4c18171\">https://doi.org/10.1021/jacs.4c18171</a>"},"user_id":"48467","volume":147,"page":"8741-8750","_id":"59906","publisher":"American Chemical Society (ACS)","status":"public","type":"journal_article","department":[{"_id":"306"}],"date_created":"2025-05-15T06:53:39Z","abstract":[{"lang":"eng","text":"The cationic molybdenum alkylidyne N-heterocyclic carbene (NHC) complex [Mo(C-p-OMeC6H4)(OCMe(CF3)2)2 (IMes)][B(ArF4] (IMes = 1,3-dimesitylimidazol-2-ylidene) was selectively immobilized inside the pores of ordered mesoporous silica (OMS) with pore diameters of 66, 56, and 28 Å and used in the ring-expansion metathesis polymerization (REMP) of cyclic olefins to yield cyclic polymers. A strong confinement effect was observed for cis-cyclooctene (cCOE), 1,5-cyclooctadiene (COD), (+)-2,3-endo,exo-dicarbomethoxynorborn-5-ene ((+)-DCMNBE), and 2-methyl-2-phenylcycloprop-1-ene (MPCP), allowing for the synthesis of low-molecular-weight cyclic polymers even at a high monomer concentration. The exclusive formation of cyclic polymers was demonstrated by matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry. Confinement also influences stereoselectivity, resulting in a pronounced increase in Z-selectivity and in an increased cis-syndiospecificity."}],"issue":"10","publication":"Journal of the American Chemical Society","doi":"10.1021/jacs.4c18171","main_file_link":[{"url":"https://pubs.acs.org/doi/full/10.1021/jacs.4c18171"}],"language":[{"iso":"eng"}],"date_updated":"2025-05-15T06:55:29Z","publication_status":"published","intvolume":"       147","article_type":"original","title":"Ring-Expansion Metathesis Polymerization under Confinement","year":"2025","author":[{"first_name":"Patrick","last_name":"Probst","full_name":"Probst, Patrick"},{"last_name":"Lindemann","first_name":"Moritz","full_name":"Lindemann, Moritz"},{"first_name":"Johanna R.","last_name":"Bruckner","full_name":"Bruckner, Johanna R."},{"first_name":"Boshra","last_name":"Atwi","full_name":"Atwi, Boshra"},{"full_name":"Wang, Dongren","first_name":"Dongren","last_name":"Wang"},{"id":"107380","full_name":"Fischer, Felix Richard","first_name":"Felix Richard","last_name":"Fischer"},{"last_name":"Högler","first_name":"Marc","full_name":"Högler, Marc"},{"id":"47241","orcid":"0000-0002-9294-6076","first_name":"Matthias","last_name":"Bauer","full_name":"Bauer, Matthias"},{"full_name":"Hansen, Niels","first_name":"Niels","last_name":"Hansen"},{"last_name":"Dyballa","first_name":"Michael","full_name":"Dyballa, Michael"},{"full_name":"Buchmeiser, Michael R.","first_name":"Michael R.","last_name":"Buchmeiser"}],"publication_identifier":{"issn":["0002-7863","1520-5126"]}},{"quality_controlled":"1","citation":{"bibtex":"@article{Kothe_Kloß_Wagner_Wengenroth_Poeplau_Ester_Tiemann_2025, title={Temperature Studies of Zinc Tin Oxide Photoluminescence for Optical O<sub>2</sub> Sensing}, volume={129}, DOI={<a href=\"https://doi.org/10.1021/acs.jpcc.5c01678\">10.1021/acs.jpcc.5c01678</a>}, number={19}, journal={The Journal of Physical Chemistry C}, publisher={American Chemical Society (ACS)}, author={Kothe, Linda and Kloß, Marvin and Wagner, Tobias and Wengenroth, Marc and Poeplau, Michael and Ester, Stephan and Tiemann, Michael}, year={2025}, pages={9239–9245} }","ama":"Kothe L, Kloß M, Wagner T, et al. Temperature Studies of Zinc Tin Oxide Photoluminescence for Optical O<sub>2</sub> Sensing. <i>The Journal of Physical Chemistry C</i>. 2025;129(19):9239-9245. doi:<a href=\"https://doi.org/10.1021/acs.jpcc.5c01678\">10.1021/acs.jpcc.5c01678</a>","mla":"Kothe, Linda, et al. “Temperature Studies of Zinc Tin Oxide Photoluminescence for Optical O<sub>2</sub> Sensing.” <i>The Journal of Physical Chemistry C</i>, vol. 129, no. 19, American Chemical Society (ACS), 2025, pp. 9239–45, doi:<a href=\"https://doi.org/10.1021/acs.jpcc.5c01678\">10.1021/acs.jpcc.5c01678</a>.","short":"L. Kothe, M. Kloß, T. Wagner, M. Wengenroth, M. Poeplau, S. Ester, M. Tiemann, The Journal of Physical Chemistry C 129 (2025) 9239–9245.","chicago":"Kothe, Linda, Marvin Kloß, Tobias Wagner, Marc Wengenroth, Michael Poeplau, Stephan Ester, and Michael Tiemann. “Temperature Studies of Zinc Tin Oxide Photoluminescence for Optical O<sub>2</sub> Sensing.” <i>The Journal of Physical Chemistry C</i> 129, no. 19 (2025): 9239–45. <a href=\"https://doi.org/10.1021/acs.jpcc.5c01678\">https://doi.org/10.1021/acs.jpcc.5c01678</a>.","ieee":"L. Kothe <i>et al.</i>, “Temperature Studies of Zinc Tin Oxide Photoluminescence for Optical O<sub>2</sub> Sensing,” <i>The Journal of Physical Chemistry C</i>, vol. 129, no. 19, pp. 9239–9245, 2025, doi: <a href=\"https://doi.org/10.1021/acs.jpcc.5c01678\">10.1021/acs.jpcc.5c01678</a>.","apa":"Kothe, L., Kloß, M., Wagner, T., Wengenroth, M., Poeplau, M., Ester, S., &#38; Tiemann, M. (2025). Temperature Studies of Zinc Tin Oxide Photoluminescence for Optical O<sub>2</sub> Sensing. <i>The Journal of Physical Chemistry C</i>, <i>129</i>(19), 9239–9245. <a href=\"https://doi.org/10.1021/acs.jpcc.5c01678\">https://doi.org/10.1021/acs.jpcc.5c01678</a>"},"user_id":"23547","volume":129,"page":"9239-9245","_id":"59842","publisher":"American Chemical Society (ACS)","status":"public","type":"journal_article","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"date_created":"2025-05-07T12:15:41Z","issue":"19","publication":"The Journal of Physical Chemistry C","doi":"10.1021/acs.jpcc.5c01678","language":[{"iso":"eng"}],"publication_status":"published","date_updated":"2025-05-16T06:16:18Z","intvolume":"       129","year":"2025","title":"Temperature Studies of Zinc Tin Oxide Photoluminescence for Optical O<sub>2</sub> Sensing","author":[{"full_name":"Kothe, Linda","last_name":"Kothe","first_name":"Linda"},{"full_name":"Kloß, Marvin","first_name":"Marvin","last_name":"Kloß"},{"first_name":"Tobias","last_name":"Wagner","full_name":"Wagner, Tobias"},{"full_name":"Wengenroth, Marc","first_name":"Marc","last_name":"Wengenroth"},{"last_name":"Poeplau","first_name":"Michael","full_name":"Poeplau, Michael"},{"full_name":"Ester, Stephan","first_name":"Stephan","last_name":"Ester"},{"full_name":"Tiemann, Michael","first_name":"Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann","id":"23547"}],"publication_identifier":{"issn":["1932-7447","1932-7455"]}},{"oa":"1","citation":{"ieee":"A. Lozančić <i>et al.</i>, “Water-assisted proton conductivity and a magnetic study of heterotrinuclear oxalate-bridged compounds: molecular precursors for the Mn2CrO4 spinel,” <i>Journal of Materials Chemistry C</i>, vol. 13, no. 41, pp. 21179–21195, 2025, doi: <a href=\"https://doi.org/10.1039/d5tc02569a\">10.1039/d5tc02569a</a>.","apa":"Lozančić, A., Burazer, S., Wagner, T., Molčanov, K., Pajić, D., Androš Dubraja, L., Tiemann, M., &#38; Jurić, M. (2025). Water-assisted proton conductivity and a magnetic study of heterotrinuclear oxalate-bridged compounds: molecular precursors for the Mn2CrO4 spinel. <i>Journal of Materials Chemistry C</i>, <i>13</i>(41), 21179–21195. <a href=\"https://doi.org/10.1039/d5tc02569a\">https://doi.org/10.1039/d5tc02569a</a>","chicago":"Lozančić, Ana, Sanja Burazer, Tobias Wagner, Krešimir Molčanov, Damir Pajić, Lidija Androš Dubraja, Michael Tiemann, and Marijana Jurić. “Water-Assisted Proton Conductivity and a Magnetic Study of Heterotrinuclear Oxalate-Bridged Compounds: Molecular Precursors for the Mn2CrO4 Spinel.” <i>Journal of Materials Chemistry C</i> 13, no. 41 (2025): 21179–95. <a href=\"https://doi.org/10.1039/d5tc02569a\">https://doi.org/10.1039/d5tc02569a</a>.","short":"A. Lozančić, S. Burazer, T. Wagner, K. Molčanov, D. Pajić, L. Androš Dubraja, M. Tiemann, M. Jurić, Journal of Materials Chemistry C 13 (2025) 21179–21195.","mla":"Lozančić, Ana, et al. “Water-Assisted Proton Conductivity and a Magnetic Study of Heterotrinuclear Oxalate-Bridged Compounds: Molecular Precursors for the Mn2CrO4 Spinel.” <i>Journal of Materials Chemistry C</i>, vol. 13, no. 41, Royal Society of Chemistry (RSC), 2025, pp. 21179–95, doi:<a href=\"https://doi.org/10.1039/d5tc02569a\">10.1039/d5tc02569a</a>.","bibtex":"@article{Lozančić_Burazer_Wagner_Molčanov_Pajić_Androš Dubraja_Tiemann_Jurić_2025, title={Water-assisted proton conductivity and a magnetic study of heterotrinuclear oxalate-bridged compounds: molecular precursors for the Mn2CrO4 spinel}, volume={13}, DOI={<a href=\"https://doi.org/10.1039/d5tc02569a\">10.1039/d5tc02569a</a>}, number={41}, journal={Journal of Materials Chemistry C}, publisher={Royal Society of Chemistry (RSC)}, author={Lozančić, Ana and Burazer, Sanja and Wagner, Tobias and Molčanov, Krešimir and Pajić, Damir and Androš Dubraja, Lidija and Tiemann, Michael and Jurić, Marijana}, year={2025}, pages={21179–21195} }","ama":"Lozančić A, Burazer S, Wagner T, et al. Water-assisted proton conductivity and a magnetic study of heterotrinuclear oxalate-bridged compounds: molecular precursors for the Mn2CrO4 spinel. <i>Journal of Materials Chemistry C</i>. 2025;13(41):21179-21195. doi:<a href=\"https://doi.org/10.1039/d5tc02569a\">10.1039/d5tc02569a</a>"},"quality_controlled":"1","publisher":"Royal Society of Chemistry (RSC)","_id":"62819","page":"21179-21195","volume":13,"user_id":"23547","status":"public","date_created":"2025-12-03T17:12:16Z","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"type":"journal_article","publication":"Journal of Materials Chemistry C","issue":"41","abstract":[{"text":"Novel oxalate-bridged heterotrinuclear complexes [A][Mn2Cr(bpy)2(H2O)2Cl2(C2O4)3] (A = (CH3)2(C2H5)NH+ (1) and (CH3)(C2H5)2NH+ (2); bpy = 2,2′-bipyridine) were synthesized using an aqueous solution of [A]3[Cr(C2O4)3] as a building block in reaction with Mn2+ ions and with the addition of the N-donor ligand bipyridine. The isostructural heterometallic complex salts were characterized by single-crystal and powder X-ray diffraction, infrared and impedance spectroscopy, thermal analysis and magnetization measurements. The trinuclear anion [{Mn(bpy)(H2O)Cl(μ-C2O4)}2Cr(C2O4)]− consists of two [Mn(bpy)(H2O)Cl]+ units bridged by the [Cr(C2O4)3]3− anion, which acts as a bidentate ligand towards each of the manganese atoms. The anions are hydrogen bonded to each other via coordinated chloride anions, water molecules and oxygen oxalate atoms, resulting in two-dimensional (2D) hydrogen bonding layers. Compounds exhibit water-assisted proton conductivity behaviour, which was investigated at different temperatures and relative humidities (RH). At 25 °C, an increase in RH from 60% to 93% resulted in an obvious proton conducting switch from 9.1 × 10−11 to 5.6 × 10−5 S cm−1 for 1 and from 7.4 × 10−10 to 1.8 × 10−6 S cm−1 for 2, corresponding to high on/off ratios of about 106 for 1 and 104 for 2. In situ powder X-ray diffraction (PXRD) analysis showed that unit cell parameters of compounds 1 and 2 slightly increase when exposed to humid conditions. This confirmed that incorporation of water molecules into structures with pores and voids causes the proton conductivity switching phenomenon. Magnetic susceptibility measurements indicate a ferromagnetic interaction between Cr3+ and Mn2+ ions bridged by the bis(bidentate) oxalate group. The prepared compounds 1 and 2 were explored as single-source precursors for the formation of spinel oxide by their thermal treatment. With increasing temperature, the spinel composition changed according to the formula Mn1+xCr2–xO4 (0 ≤ x ≤ 1), where x = 0.7 at 500 °C and x = 1 at 900 °C when tet[MnII]oct[MnIIICrIII]O4 is formed. The (micro)structure, morphology, and optical properties of spinel Mn2CrO4 were characterized by PXRD, scanning electron microscopy and UV-Vis diffuse reflectance spectroscopy. The photocatalytic activity of this oxide in degradation of the methylene blue dye under Vis irradiation without and with the support of hydrogen peroxide was further investigated.","lang":"eng"}],"language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1"}],"doi":"10.1039/d5tc02569a","author":[{"first_name":"Ana","last_name":"Lozančić","full_name":"Lozančić, Ana"},{"last_name":"Burazer","first_name":"Sanja","full_name":"Burazer, Sanja"},{"full_name":"Wagner, Tobias","first_name":"Tobias","last_name":"Wagner"},{"first_name":"Krešimir","last_name":"Molčanov","full_name":"Molčanov, Krešimir"},{"last_name":"Pajić","first_name":"Damir","full_name":"Pajić, Damir"},{"full_name":"Androš Dubraja, Lidija","first_name":"Lidija","last_name":"Androš Dubraja"},{"first_name":"Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann","full_name":"Tiemann, Michael","id":"23547"},{"first_name":"Marijana","last_name":"Jurić","full_name":"Jurić, Marijana"}],"publication_identifier":{"issn":["2050-7526","2050-7534"]},"title":"Water-assisted proton conductivity and a magnetic study of heterotrinuclear oxalate-bridged compounds: molecular precursors for the Mn2CrO4 spinel","year":"2025","intvolume":"        13","publication_status":"published","date_updated":"2025-12-03T17:13:22Z"},{"publication_identifier":{"issn":["0897-4756","1520-5002"]},"author":[{"first_name":"Matthias J.","last_name":"Grotevent","full_name":"Grotevent, Matthias J."},{"last_name":"Kothe","first_name":"Linda","full_name":"Kothe, Linda"},{"full_name":"Lu, Yongli","last_name":"Lu","first_name":"Yongli"},{"last_name":"Krajewska","first_name":"Chantalle J.","full_name":"Krajewska, Chantalle J."},{"first_name":"Meng-Chen","last_name":"Shih","full_name":"Shih, Meng-Chen"},{"first_name":"Shaun","last_name":"Tan","full_name":"Tan, Shaun"},{"last_name":"Tiemann","first_name":"Michael","orcid":"0000-0003-1711-2722","full_name":"Tiemann, Michael","id":"23547"},{"last_name":"Bawendi","first_name":"Moungi G.","full_name":"Bawendi, Moungi G."}],"year":"2025","title":"Nontoxic and Rapid Chemical Bath Deposition for SnO<sub>2</sub> Electron Transporting Layers in Perovskite Solar Cells","intvolume":"        37","date_updated":"2025-08-12T13:37:42Z","publication_status":"published","language":[{"iso":"eng"}],"doi":"10.1021/acs.chemmater.5c01081","issue":"15","publication":"Chemistry of Materials","date_created":"2025-08-04T11:40:31Z","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"type":"journal_article","status":"public","publisher":"American Chemical Society (ACS)","_id":"60862","page":"5866–5873","volume":37,"user_id":"23547","citation":{"ieee":"M. J. Grotevent <i>et al.</i>, “Nontoxic and Rapid Chemical Bath Deposition for SnO<sub>2</sub> Electron Transporting Layers in Perovskite Solar Cells,” <i>Chemistry of Materials</i>, vol. 37, no. 15, pp. 5866–5873, 2025, doi: <a href=\"https://doi.org/10.1021/acs.chemmater.5c01081\">10.1021/acs.chemmater.5c01081</a>.","mla":"Grotevent, Matthias J., et al. “Nontoxic and Rapid Chemical Bath Deposition for SnO<sub>2</sub> Electron Transporting Layers in Perovskite Solar Cells.” <i>Chemistry of Materials</i>, vol. 37, no. 15, American Chemical Society (ACS), 2025, pp. 5866–5873, doi:<a href=\"https://doi.org/10.1021/acs.chemmater.5c01081\">10.1021/acs.chemmater.5c01081</a>.","apa":"Grotevent, M. J., Kothe, L., Lu, Y., Krajewska, C. J., Shih, M.-C., Tan, S., Tiemann, M., &#38; Bawendi, M. G. (2025). Nontoxic and Rapid Chemical Bath Deposition for SnO<sub>2</sub> Electron Transporting Layers in Perovskite Solar Cells. <i>Chemistry of Materials</i>, <i>37</i>(15), 5866–5873. <a href=\"https://doi.org/10.1021/acs.chemmater.5c01081\">https://doi.org/10.1021/acs.chemmater.5c01081</a>","bibtex":"@article{Grotevent_Kothe_Lu_Krajewska_Shih_Tan_Tiemann_Bawendi_2025, title={Nontoxic and Rapid Chemical Bath Deposition for SnO<sub>2</sub> Electron Transporting Layers in Perovskite Solar Cells}, volume={37}, DOI={<a href=\"https://doi.org/10.1021/acs.chemmater.5c01081\">10.1021/acs.chemmater.5c01081</a>}, number={15}, journal={Chemistry of Materials}, publisher={American Chemical Society (ACS)}, author={Grotevent, Matthias J. and Kothe, Linda and Lu, Yongli and Krajewska, Chantalle J. and Shih, Meng-Chen and Tan, Shaun and Tiemann, Michael and Bawendi, Moungi G.}, year={2025}, pages={5866–5873} }","short":"M.J. Grotevent, L. Kothe, Y. Lu, C.J. Krajewska, M.-C. Shih, S. Tan, M. Tiemann, M.G. Bawendi, Chemistry of Materials 37 (2025) 5866–5873.","ama":"Grotevent MJ, Kothe L, Lu Y, et al. Nontoxic and Rapid Chemical Bath Deposition for SnO<sub>2</sub> Electron Transporting Layers in Perovskite Solar Cells. <i>Chemistry of Materials</i>. 2025;37(15):5866–5873. doi:<a href=\"https://doi.org/10.1021/acs.chemmater.5c01081\">10.1021/acs.chemmater.5c01081</a>","chicago":"Grotevent, Matthias J., Linda Kothe, Yongli Lu, Chantalle J. Krajewska, Meng-Chen Shih, Shaun Tan, Michael Tiemann, and Moungi G. Bawendi. “Nontoxic and Rapid Chemical Bath Deposition for SnO<sub>2</sub> Electron Transporting Layers in Perovskite Solar Cells.” <i>Chemistry of Materials</i> 37, no. 15 (2025): 5866–5873. <a href=\"https://doi.org/10.1021/acs.chemmater.5c01081\">https://doi.org/10.1021/acs.chemmater.5c01081</a>."},"quality_controlled":"1"},{"title":"Chromophore Induced Effects in Iron(III) Complexes","year":"2025","status":"public","publication_identifier":{"issn":["0020-1669","1520-510X"]},"author":[{"last_name":"Schmitz","first_name":"Lennart","full_name":"Schmitz, Lennart","id":"53140"},{"first_name":"Miguel A.","last_name":"Argüello Cordero","full_name":"Argüello Cordero, Miguel A."},{"full_name":"Al-Marri, Mohammed J.","last_name":"Al-Marri","first_name":"Mohammed J."},{"id":"48467","first_name":"Roland","last_name":"Schoch","orcid":"0000-0003-2061-7289","full_name":"Schoch, Roland"},{"full_name":"Egold, Hans","first_name":"Hans","last_name":"Egold","id":"101"},{"last_name":"Neuba","first_name":"Adam","full_name":"Neuba, Adam"},{"id":"40342","orcid":"0000-0003-3178-4429","first_name":"Jakob","last_name":"Steube","full_name":"Steube, Jakob"},{"id":"86707","first_name":"Bastian Johannes","last_name":"Bracht","full_name":"Bracht, Bastian Johannes"},{"first_name":"Olga S.","last_name":"Bokareva","full_name":"Bokareva, Olga S."},{"first_name":"Stefan","last_name":"Lochbrunner","full_name":"Lochbrunner, Stefan"},{"id":"47241","full_name":"Bauer, Matthias","first_name":"Matthias","last_name":"Bauer","orcid":"0000-0002-9294-6076"}],"publication_status":"published","date_updated":"2025-08-15T12:18:08Z","article_number":"acs.inorgchem.5c00526","publisher":"American Chemical Society (ACS)","_id":"60600","language":[{"iso":"eng"}],"user_id":"48467","doi":"10.1021/acs.inorgchem.5c00526","publication":"Inorganic Chemistry","citation":{"mla":"Schmitz, Lennart, et al. “Chromophore Induced Effects in Iron(III) Complexes.” <i>Inorganic Chemistry</i>, acs. inorgchem.5c00526, American Chemical Society (ACS), 2025, doi:<a href=\"https://doi.org/10.1021/acs.inorgchem.5c00526\">10.1021/acs.inorgchem.5c00526</a>.","ama":"Schmitz L, Argüello Cordero MA, Al-Marri MJ, et al. Chromophore Induced Effects in Iron(III) Complexes. <i>Inorganic Chemistry</i>. Published online 2025. doi:<a href=\"https://doi.org/10.1021/acs.inorgchem.5c00526\">10.1021/acs.inorgchem.5c00526</a>","bibtex":"@article{Schmitz_Argüello Cordero_Al-Marri_Schoch_Egold_Neuba_Steube_Bracht_Bokareva_Lochbrunner_et al._2025, title={Chromophore Induced Effects in Iron(III) Complexes}, DOI={<a href=\"https://doi.org/10.1021/acs.inorgchem.5c00526\">10.1021/acs.inorgchem.5c00526</a>}, number={acs. inorgchem.5c00526}, journal={Inorganic Chemistry}, publisher={American Chemical Society (ACS)}, author={Schmitz, Lennart and Argüello Cordero, Miguel A. and Al-Marri, Mohammed J. and Schoch, Roland and Egold, Hans and Neuba, Adam and Steube, Jakob and Bracht, Bastian Johannes and Bokareva, Olga S. and Lochbrunner, Stefan and et al.}, year={2025} }","apa":"Schmitz, L., Argüello Cordero, M. A., Al-Marri, M. J., Schoch, R., Egold, H., Neuba, A., Steube, J., Bracht, B. J., Bokareva, O. S., Lochbrunner, S., &#38; Bauer, M. (2025). Chromophore Induced Effects in Iron(III) Complexes. <i>Inorganic Chemistry</i>, Article acs. inorgchem.5c00526. <a href=\"https://doi.org/10.1021/acs.inorgchem.5c00526\">https://doi.org/10.1021/acs.inorgchem.5c00526</a>","ieee":"L. Schmitz <i>et al.</i>, “Chromophore Induced Effects in Iron(III) Complexes,” <i>Inorganic Chemistry</i>, Art. no. acs. inorgchem.5c00526, 2025, doi: <a href=\"https://doi.org/10.1021/acs.inorgchem.5c00526\">10.1021/acs.inorgchem.5c00526</a>.","short":"L. Schmitz, M.A. Argüello Cordero, M.J. Al-Marri, R. Schoch, H. Egold, A. Neuba, J. Steube, B.J. Bracht, O.S. Bokareva, S. Lochbrunner, M. Bauer, Inorganic Chemistry (2025).","chicago":"Schmitz, Lennart, Miguel A. Argüello Cordero, Mohammed J. Al-Marri, Roland Schoch, Hans Egold, Adam Neuba, Jakob Steube, et al. “Chromophore Induced Effects in Iron(III) Complexes.” <i>Inorganic Chemistry</i>, 2025. <a href=\"https://doi.org/10.1021/acs.inorgchem.5c00526\">https://doi.org/10.1021/acs.inorgchem.5c00526</a>."},"abstract":[{"lang":"eng","text":"In the search for noble metal free photocatalytic systems, iron is the dream candidate. To increase excited state lifetimes of iron complexes, the multichromophoric approach is promising, combining organic chromophores with photoactive iron complexes, potentially enabling a reservoir effect. We present a series of chromophore-functionalized complexes based on the parental FeIII complex [Fe(ImP)2][PF6] (HImP = 1,1′-(1,3-phenylene)bis(3-methyl-1-imidazole-2-ylidene)). The four organic chromophores benzene, naphthalene, anthracene, and pyrene are attached to the ImP-ligand in para-position to the coordination site to systematically investigate the influence of the steric demand and electronic properties of the chromophore on charge transfer lifetimes as well as photodynamics. A thorough ground state characterization was conducted in addition to investigations of the excited state dynamics by transient absorption spectroscopy and streak camera emission measurements. The conclusions drawn are supported by extensive DFT calculations. The emission coefficients could be significantly improved by the addition of chromophores. After excitation of the complexes with larger chromophores, coplanarization of the backbone and complex motif occurs to stabilize the formal charge. This results in population of a superligand state that exhibits a much faster radiationless relaxation to the ground state compared to the parent complex, hindering a reservoir effect."}],"date_created":"2025-07-14T08:49:25Z","keyword":["Photo"],"type":"journal_article","department":[{"_id":"306"}]},{"doi":"10.1021/acs.inorgchem.4c04479","user_id":"48467","publisher":"American Chemical Society (ACS)","_id":"58180","language":[{"iso":"eng"}],"date_updated":"2025-08-15T12:30:18Z","publication_status":"published","title":"Low Temperature Emissive Cyclometalated Cobalt(III) Complexes","year":"2025","status":"public","publication_identifier":{"issn":["0020-1669","1520-510X"]},"author":[{"full_name":"Krishna, Athul","first_name":"Athul","last_name":"Krishna"},{"id":"44418","full_name":"Fritsch, Lorena","last_name":"Fritsch","first_name":"Lorena"},{"full_name":"Steube, Jakob","last_name":"Steube","orcid":"0000-0003-3178-4429","first_name":"Jakob","id":"40342"},{"first_name":"Miguel A.","last_name":"Argüello Cordero","full_name":"Argüello Cordero, Miguel A."},{"id":"48467","last_name":"Schoch","first_name":"Roland","orcid":"0000-0003-2061-7289","full_name":"Schoch, Roland"},{"last_name":"Neuba","first_name":"Adam","full_name":"Neuba, Adam"},{"last_name":"Lochbrunner","first_name":"Stefan","full_name":"Lochbrunner, Stefan"},{"id":"47241","full_name":"Bauer, Matthias","orcid":"0000-0002-9294-6076","first_name":"Matthias","last_name":"Bauer"}],"keyword":["Photo"],"type":"journal_article","department":[{"_id":"306"}],"date_created":"2025-01-15T08:29:21Z","abstract":[{"text":"A series of CoIII complexes [Co(RImP)2][PF6], with HMeImP = 1,1′-(1,3-phenylene)bis(3-methyl-1-imidazole-2-ylidene)) and R = Me, Et, iPr, nBu, is presented in this work. The influence of the strong donor ligand on the ground and excited-state photophysical properties was investigated in the context of different alkyl substituents at the imidazole nitrogen. X-ray diffraction revealed no significant alterations of the structures and all differences in the series emerge from the electronic structures. These were probed via cyclic voltammetry and UV–vis spectroscopy, detailing the influence of the different alkyl substituents on the ground-state properties. All complexes are emissive at 77 K from a 3MC state, which exhibits lifetimes in the range of 1–5 ns at room temperature, depending on the alkyl substituent. Therefore, it is clearly shown that even small differences in the electronic structure have a large impact on the details of the excited state landscape. The observed behavior was rationalized by a detailed DFT analysis, which shows that the minimum-energy crossing point to the ground-state is located only slightly above the MC energy: Consequently, nonradiative decay to the ground state at room temperature is enabled, while at 77 K this path is prohibited, leading to low-temperature 3MC emission.","lang":"eng"}],"publication":"Inorganic Chemistry","citation":{"short":"A. Krishna, L. Fritsch, J. Steube, M.A. Argüello Cordero, R. Schoch, A. Neuba, S. Lochbrunner, M. Bauer, Inorganic Chemistry (2025).","chicago":"Krishna, Athul, Lorena Fritsch, Jakob Steube, Miguel A. Argüello Cordero, Roland Schoch, Adam Neuba, Stefan Lochbrunner, and Matthias Bauer. “Low Temperature Emissive Cyclometalated Cobalt(III) Complexes.” <i>Inorganic Chemistry</i>, 2025. <a href=\"https://doi.org/10.1021/acs.inorgchem.4c04479\">https://doi.org/10.1021/acs.inorgchem.4c04479</a>.","apa":"Krishna, A., Fritsch, L., Steube, J., Argüello Cordero, M. A., Schoch, R., Neuba, A., Lochbrunner, S., &#38; Bauer, M. (2025). Low Temperature Emissive Cyclometalated Cobalt(III) Complexes. <i>Inorganic Chemistry</i>. <a href=\"https://doi.org/10.1021/acs.inorgchem.4c04479\">https://doi.org/10.1021/acs.inorgchem.4c04479</a>","ieee":"A. Krishna <i>et al.</i>, “Low Temperature Emissive Cyclometalated Cobalt(III) Complexes,” <i>Inorganic Chemistry</i>, 2025, doi: <a href=\"https://doi.org/10.1021/acs.inorgchem.4c04479\">10.1021/acs.inorgchem.4c04479</a>.","ama":"Krishna A, Fritsch L, Steube J, et al. Low Temperature Emissive Cyclometalated Cobalt(III) Complexes. <i>Inorganic Chemistry</i>. Published online 2025. doi:<a href=\"https://doi.org/10.1021/acs.inorgchem.4c04479\">10.1021/acs.inorgchem.4c04479</a>","bibtex":"@article{Krishna_Fritsch_Steube_Argüello Cordero_Schoch_Neuba_Lochbrunner_Bauer_2025, title={Low Temperature Emissive Cyclometalated Cobalt(III) Complexes}, DOI={<a href=\"https://doi.org/10.1021/acs.inorgchem.4c04479\">10.1021/acs.inorgchem.4c04479</a>}, journal={Inorganic Chemistry}, publisher={American Chemical Society (ACS)}, author={Krishna, Athul and Fritsch, Lorena and Steube, Jakob and Argüello Cordero, Miguel A. and Schoch, Roland and Neuba, Adam and Lochbrunner, Stefan and Bauer, Matthias}, year={2025} }","mla":"Krishna, Athul, et al. “Low Temperature Emissive Cyclometalated Cobalt(III) Complexes.” <i>Inorganic Chemistry</i>, American Chemical Society (ACS), 2025, doi:<a href=\"https://doi.org/10.1021/acs.inorgchem.4c04479\">10.1021/acs.inorgchem.4c04479</a>."}},{"user_id":"23547","volume":10,"page":"5664-5673","_id":"61015","publisher":"American Chemical Society (ACS)","status":"public","quality_controlled":"1","citation":{"mla":"Baier, Dominik, et al. “Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach.” <i>ACS Sensors</i>, vol. 10, no. 8, American Chemical Society (ACS), 2025, pp. 5664–73, doi:<a href=\"https://doi.org/10.1021/acssensors.5c00770\">10.1021/acssensors.5c00770</a>.","ama":"Baier D, Kieke L, Voth S, et al. Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach. <i>ACS Sensors</i>. 2025;10(8):5664-5673. doi:<a href=\"https://doi.org/10.1021/acssensors.5c00770\">10.1021/acssensors.5c00770</a>","bibtex":"@article{Baier_Kieke_Voth_Kloß_Huck_Steinrück_Tiemann_2025, title={Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach}, volume={10}, DOI={<a href=\"https://doi.org/10.1021/acssensors.5c00770\">10.1021/acssensors.5c00770</a>}, number={8}, journal={ACS Sensors}, publisher={American Chemical Society (ACS)}, author={Baier, Dominik and Kieke, Laureen and Voth, Sven and Kloß, Marvin and Huck, Marten and Steinrück, Hans-Georg and Tiemann, Michael}, year={2025}, pages={5664–5673} }","apa":"Baier, D., Kieke, L., Voth, S., Kloß, M., Huck, M., Steinrück, H.-G., &#38; Tiemann, M. (2025). Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach. <i>ACS Sensors</i>, <i>10</i>(8), 5664–5673. <a href=\"https://doi.org/10.1021/acssensors.5c00770\">https://doi.org/10.1021/acssensors.5c00770</a>","ieee":"D. Baier <i>et al.</i>, “Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach,” <i>ACS Sensors</i>, vol. 10, no. 8, pp. 5664–5673, 2025, doi: <a href=\"https://doi.org/10.1021/acssensors.5c00770\">10.1021/acssensors.5c00770</a>.","chicago":"Baier, Dominik, Laureen Kieke, Sven Voth, Marvin Kloß, Marten Huck, Hans-Georg Steinrück, and Michael Tiemann. “Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach.” <i>ACS Sensors</i> 10, no. 8 (2025): 5664–73. <a href=\"https://doi.org/10.1021/acssensors.5c00770\">https://doi.org/10.1021/acssensors.5c00770</a>.","short":"D. Baier, L. Kieke, S. Voth, M. Kloß, M. Huck, H.-G. Steinrück, M. Tiemann, ACS Sensors 10 (2025) 5664–5673."},"doi":"10.1021/acssensors.5c00770","language":[{"iso":"eng"}],"publication_status":"published","date_updated":"2026-10-01T14:20:27Z","intvolume":"        10","title":"Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach","year":"2025","author":[{"last_name":"Baier","first_name":"Dominik","full_name":"Baier, Dominik"},{"full_name":"Kieke, Laureen","first_name":"Laureen","last_name":"Kieke"},{"first_name":"Sven","last_name":"Voth","full_name":"Voth, Sven"},{"full_name":"Kloß, Marvin","last_name":"Kloß","first_name":"Marvin"},{"full_name":"Huck, Marten","first_name":"Marten","last_name":"Huck"},{"id":"84268","full_name":"Steinrück, Hans-Georg","last_name":"Steinrück","first_name":"Hans-Georg","orcid":"0000-0001-6373-0877"},{"id":"23547","first_name":"Michael","last_name":"Tiemann","orcid":"0000-0003-1711-2722","full_name":"Tiemann, Michael"}],"publication_identifier":{"issn":["2379-3694","2379-3694"]},"type":"journal_article","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"date_created":"2025-08-26T06:58:26Z","publication":"ACS Sensors","issue":"8"},{"user_id":"23547","volume":10,"page":"5664-5673","_id":"61016","publisher":"American Chemical Society (ACS)","status":"public","citation":{"apa":"Baier, D., Kieke, L., Voth, S., Kloß, M., Huck, M., Steinrück, H.-G., &#38; Tiemann, M. (2025). Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach. <i>ACS Sensors</i>, <i>10</i>(8), 5664–5673. <a href=\"https://doi.org/10.1021/acssensors.5c00770\">https://doi.org/10.1021/acssensors.5c00770</a>","ieee":"D. Baier <i>et al.</i>, “Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach,” <i>ACS Sensors</i>, vol. 10, no. 8, pp. 5664–5673, 2025, doi: <a href=\"https://doi.org/10.1021/acssensors.5c00770\">10.1021/acssensors.5c00770</a>.","chicago":"Baier, Dominik, Laureen Kieke, Sven Voth, Marvin Kloß, Marten Huck, Hans-Georg Steinrück, and Michael Tiemann. “Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach.” <i>ACS Sensors</i> 10, no. 8 (2025): 5664–73. <a href=\"https://doi.org/10.1021/acssensors.5c00770\">https://doi.org/10.1021/acssensors.5c00770</a>.","short":"D. Baier, L. Kieke, S. Voth, M. Kloß, M. Huck, H.-G. Steinrück, M. Tiemann, ACS Sensors 10 (2025) 5664–5673.","mla":"Baier, Dominik, et al. “Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach.” <i>ACS Sensors</i>, vol. 10, no. 8, American Chemical Society (ACS), 2025, pp. 5664–73, doi:<a href=\"https://doi.org/10.1021/acssensors.5c00770\">10.1021/acssensors.5c00770</a>.","ama":"Baier D, Kieke L, Voth S, et al. Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach. <i>ACS Sensors</i>. 2025;10(8):5664-5673. doi:<a href=\"https://doi.org/10.1021/acssensors.5c00770\">10.1021/acssensors.5c00770</a>","bibtex":"@article{Baier_Kieke_Voth_Kloß_Huck_Steinrück_Tiemann_2025, title={Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach}, volume={10}, DOI={<a href=\"https://doi.org/10.1021/acssensors.5c00770\">10.1021/acssensors.5c00770</a>}, number={8}, journal={ACS Sensors}, publisher={American Chemical Society (ACS)}, author={Baier, Dominik and Kieke, Laureen and Voth, Sven and Kloß, Marvin and Huck, Marten and Steinrück, Hans-Georg and Tiemann, Michael}, year={2025}, pages={5664–5673} }"},"doi":"10.1021/acssensors.5c00770","language":[{"iso":"eng"}],"date_updated":"2026-10-01T14:04:40Z","publication_status":"published","intvolume":"        10","year":"2025","title":"Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach","publication_identifier":{"issn":["2379-3694","2379-3694"]},"author":[{"first_name":"Dominik","last_name":"Baier","full_name":"Baier, Dominik"},{"full_name":"Kieke, Laureen","first_name":"Laureen","last_name":"Kieke"},{"last_name":"Voth","first_name":"Sven","full_name":"Voth, Sven"},{"first_name":"Marvin","last_name":"Kloß","full_name":"Kloß, Marvin"},{"first_name":"Marten","last_name":"Huck","full_name":"Huck, Marten"},{"first_name":"Hans-Georg","last_name":"Steinrück","full_name":"Steinrück, Hans-Georg"},{"last_name":"Tiemann","first_name":"Michael","full_name":"Tiemann, Michael"}],"type":"journal_article","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"date_created":"2025-08-26T06:58:42Z","publication":"ACS Sensors","issue":"8"},{"oa":"1","citation":{"ama":"Ge X, Huck M, Kuhlmann A, et al. Electrochemical Removal of HF from Carbonate-based LiPF6-containing Li-ion Battery Electrolytes. <i>Journal of The Electrochemical Society</i>. 2024;171:030552. doi:<a href=\"https://doi.org/10.1149/1945-7111/ad30d3\">10.1149/1945-7111/ad30d3</a>","bibtex":"@article{Ge_Huck_Kuhlmann_Tiemann_Weinberger_Xu_Zhao_Steinrueck_2024, title={Electrochemical Removal of HF from Carbonate-based LiPF6-containing Li-ion Battery Electrolytes}, volume={171}, DOI={<a href=\"https://doi.org/10.1149/1945-7111/ad30d3\">10.1149/1945-7111/ad30d3</a>}, journal={Journal of The Electrochemical Society}, publisher={The Electrochemical Society}, author={Ge, Xiaokun and Huck, Marten and Kuhlmann, Andreas and Tiemann, Michael and Weinberger, Christian and Xu, Xiaodan and Zhao, Zhenyu and Steinrueck, Hans-Georg}, year={2024}, pages={030552} }","mla":"Ge, Xiaokun, et al. “Electrochemical Removal of HF from Carbonate-Based LiPF6-Containing Li-Ion Battery Electrolytes.” <i>Journal of The Electrochemical Society</i>, vol. 171, The Electrochemical Society, 2024, p. 030552, doi:<a href=\"https://doi.org/10.1149/1945-7111/ad30d3\">10.1149/1945-7111/ad30d3</a>.","chicago":"Ge, Xiaokun, Marten Huck, Andreas Kuhlmann, Michael Tiemann, Christian Weinberger, Xiaodan Xu, Zhenyu Zhao, and Hans-Georg Steinrueck. “Electrochemical Removal of HF from Carbonate-Based LiPF6-Containing Li-Ion Battery Electrolytes.” <i>Journal of The Electrochemical Society</i> 171 (2024): 030552. <a href=\"https://doi.org/10.1149/1945-7111/ad30d3\">https://doi.org/10.1149/1945-7111/ad30d3</a>.","short":"X. Ge, M. Huck, A. Kuhlmann, M. Tiemann, C. Weinberger, X. Xu, Z. Zhao, H.-G. Steinrueck, Journal of The Electrochemical Society 171 (2024) 030552.","apa":"Ge, X., Huck, M., Kuhlmann, A., Tiemann, M., Weinberger, C., Xu, X., Zhao, Z., &#38; Steinrueck, H.-G. (2024). Electrochemical Removal of HF from Carbonate-based LiPF6-containing Li-ion Battery Electrolytes. <i>Journal of The Electrochemical Society</i>, <i>171</i>, 030552. <a href=\"https://doi.org/10.1149/1945-7111/ad30d3\">https://doi.org/10.1149/1945-7111/ad30d3</a>","ieee":"X. Ge <i>et al.</i>, “Electrochemical Removal of HF from Carbonate-based LiPF6-containing Li-ion Battery Electrolytes,” <i>Journal of The Electrochemical Society</i>, vol. 171, p. 030552, 2024, doi: <a href=\"https://doi.org/10.1149/1945-7111/ad30d3\">10.1149/1945-7111/ad30d3</a>."},"quality_controlled":"1","page":"030552","_id":"52372","publisher":"The Electrochemical Society","user_id":"23547","volume":171,"status":"public","date_created":"2024-03-08T06:27:10Z","keyword":["Materials Chemistry","Electrochemistry","Surfaces","Coatings and Films","Condensed Matter Physics","Renewable Energy","Sustainability and the Environment","Electronic","Optical and Magnetic Materials"],"type":"journal_article","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"publication":"Journal of The Electrochemical Society","abstract":[{"text":"Due to the hydrolytic instability of LiPF6 in carbonate-based solvents, HF is a typical impurity in Li-ion battery electrolytes. HF significantly influences the performance of Li-ion batteries, for example by impacting the formation of the solid electrolyte interphase at the anode and by affecting transition metal dissolution at the cathode. Additionally, HF complicates studying fundamental interfacial electrochemistry of Li-ion battery electrolytes, such as direct anion reduction, because it is electrocatalytically relatively unstable, resulting in LiF passivation layers. Methods to selectively remove ppm levels of HF from LiPF6-containing carbonate-based electrolytes are limited. We introduce and benchmark a simple yet efficient electrochemical in situ method to selectively remove ppm amounts of HF from LiPF6-containing carbonate-based electrolytes. The basic idea is the application of a suitable potential to a high surface-area metallic electrode upon which only HF reacts (electrocatalytically) while all other electrolyte components are unaffected under the respective conditions.","lang":"eng"}],"main_file_link":[{"url":"https://dx.doi.org/10.1149/1945-7111/ad30d3","open_access":"1"}],"language":[{"iso":"eng"}],"doi":"10.1149/1945-7111/ad30d3","year":"2024","title":"Electrochemical Removal of HF from Carbonate-based LiPF6-containing Li-ion Battery Electrolytes","author":[{"full_name":"Ge, Xiaokun","first_name":"Xiaokun","last_name":"Ge"},{"full_name":"Huck, Marten","last_name":"Huck","first_name":"Marten"},{"full_name":"Kuhlmann, Andreas","last_name":"Kuhlmann","first_name":"Andreas"},{"first_name":"Michael","last_name":"Tiemann","orcid":"0000-0003-1711-2722","full_name":"Tiemann, Michael","id":"23547"},{"id":"11848","first_name":"Christian","last_name":"Weinberger","full_name":"Weinberger, Christian"},{"full_name":"Xu, Xiaodan","last_name":"Xu","first_name":"Xiaodan"},{"last_name":"Zhao","first_name":"Zhenyu","full_name":"Zhao, Zhenyu"},{"last_name":"Steinrueck","first_name":"Hans-Georg","full_name":"Steinrueck, Hans-Georg"}],"publication_identifier":{"issn":["0013-4651","1945-7111"]},"publication_status":"published","date_updated":"2024-03-25T17:01:09Z","article_type":"original","intvolume":"       171"},{"citation":{"short":"B. Schwind, X. Wu, M. Tiemann, H.-O. Fabritius, Frontiers in Physics 12 (2024).","chicago":"Schwind, Bertram, Xia Wu, Michael Tiemann, and Helge-Otto Fabritius. “Natural near Field Coupled Leaky-Mode Resonant Anti-Reflection Structures: The Setae of Cataglyphis Bombycina.” <i>Frontiers in Physics</i> 12 (2024). <a href=\"https://doi.org/10.3389/fphy.2024.1393279\">https://doi.org/10.3389/fphy.2024.1393279</a>.","apa":"Schwind, B., Wu, X., Tiemann, M., &#38; Fabritius, H.-O. (2024). Natural near field coupled leaky-mode resonant anti-reflection structures: the setae of Cataglyphis bombycina. <i>Frontiers in Physics</i>, <i>12</i>. <a href=\"https://doi.org/10.3389/fphy.2024.1393279\">https://doi.org/10.3389/fphy.2024.1393279</a>","ieee":"B. Schwind, X. Wu, M. Tiemann, and H.-O. Fabritius, “Natural near field coupled leaky-mode resonant anti-reflection structures: the setae of Cataglyphis bombycina,” <i>Frontiers in Physics</i>, vol. 12, 2024, doi: <a href=\"https://doi.org/10.3389/fphy.2024.1393279\">10.3389/fphy.2024.1393279</a>.","ama":"Schwind B, Wu X, Tiemann M, Fabritius H-O. Natural near field coupled leaky-mode resonant anti-reflection structures: the setae of Cataglyphis bombycina. <i>Frontiers in Physics</i>. 2024;12. doi:<a href=\"https://doi.org/10.3389/fphy.2024.1393279\">10.3389/fphy.2024.1393279</a>","bibtex":"@article{Schwind_Wu_Tiemann_Fabritius_2024, title={Natural near field coupled leaky-mode resonant anti-reflection structures: the setae of Cataglyphis bombycina}, volume={12}, DOI={<a href=\"https://doi.org/10.3389/fphy.2024.1393279\">10.3389/fphy.2024.1393279</a>}, journal={Frontiers in Physics}, author={Schwind, Bertram and Wu, Xia and Tiemann, Michael and Fabritius, Helge-Otto}, year={2024} }","mla":"Schwind, Bertram, et al. “Natural near Field Coupled Leaky-Mode Resonant Anti-Reflection Structures: The Setae of Cataglyphis Bombycina.” <i>Frontiers in Physics</i>, vol. 12, 2024, doi:<a href=\"https://doi.org/10.3389/fphy.2024.1393279\">10.3389/fphy.2024.1393279</a>."},"quality_controlled":"1","oa":"1","status":"public","_id":"54419","user_id":"23547","volume":12,"publication":"Frontiers in Physics","abstract":[{"text":"Leaky mode resonances of the setae of Cataglyphis bombycina are found to enhance the thermal emission of the animals by near field coupling to the chitinous exoskeleton. This is remarkable, as the setae are also an adaption to enhance the reflectivity in the visible wavelength range. Both effects are dependent on morphology, dimensions and spatial arrangement. These parameters were experimentally characterized and simulated by finite difference time domain simulations to elucidate the optical impact of the setae in the mid infrared range and the contribution of leaky mode resonances. This mode of action and the setae’s optical properties in the visible range explain evolutionary strains that led to the actual morphology and size of the setae.","lang":"eng"}],"date_created":"2024-05-22T14:19:25Z","type":"journal_article","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"},{"_id":"230"}],"title":"Natural near field coupled leaky-mode resonant anti-reflection structures: the setae of Cataglyphis bombycina","year":"2024","author":[{"first_name":"Bertram","last_name":"Schwind","full_name":"Schwind, Bertram"},{"first_name":"Xia","last_name":"Wu","full_name":"Wu, Xia"},{"id":"23547","orcid":"0000-0003-1711-2722","last_name":"Tiemann","first_name":"Michael","full_name":"Tiemann, Michael"},{"last_name":"Fabritius","first_name":"Helge-Otto","full_name":"Fabritius, Helge-Otto"}],"publication_identifier":{"issn":["2296-424X"]},"date_updated":"2024-05-22T14:27:32Z","article_type":"original","intvolume":"        12","main_file_link":[{"open_access":"1"}],"language":[{"iso":"eng"}],"doi":"10.3389/fphy.2024.1393279"},{"publication_identifier":{"isbn":["978-3-910600-01-0"]},"author":[{"full_name":"Kothe, Linda","last_name":"Kothe","first_name":"Linda"},{"full_name":"Ester, Stephan","first_name":"Stephan","last_name":"Ester"},{"full_name":"Poeplau, Michael","last_name":"Poeplau","first_name":"Michael"},{"full_name":"Wengenroth, Marc","first_name":"Marc","last_name":"Wengenroth"},{"id":"23547","last_name":"Tiemann","first_name":"Michael","orcid":"0000-0003-1711-2722","full_name":"Tiemann, Michael"}],"title":"Stabilisierung von O2-sensitiven Photolumineszenzsignalen durch Temperaturvariation","year":"2024","status":"public","date_updated":"2024-07-30T11:52:18Z","language":[{"iso":"eng"}],"_id":"55392","page":"66 - 71","main_file_link":[{"open_access":"1"}],"doi":"10.5162/sensoren2024/A3.1","user_id":"23547","citation":{"mla":"Kothe, Linda, et al. “Stabilisierung von O2-Sensitiven Photolumineszenzsignalen Durch Temperaturvariation.” <i>Proceedings 22. GMA/ITG-Fachtagung Sensoren Und Messsysteme 2024</i>, 2024, pp. 66–71, doi:<a href=\"https://doi.org/10.5162/sensoren2024/A3.1\">10.5162/sensoren2024/A3.1</a>.","bibtex":"@inproceedings{Kothe_Ester_Poeplau_Wengenroth_Tiemann_2024, title={Stabilisierung von O2-sensitiven Photolumineszenzsignalen durch Temperaturvariation}, DOI={<a href=\"https://doi.org/10.5162/sensoren2024/A3.1\">10.5162/sensoren2024/A3.1</a>}, booktitle={Proceedings 22. GMA/ITG-Fachtagung Sensoren und Messsysteme 2024}, author={Kothe, Linda and Ester, Stephan and Poeplau, Michael and Wengenroth, Marc and Tiemann, Michael}, year={2024}, pages={66–71} }","ama":"Kothe L, Ester S, Poeplau M, Wengenroth M, Tiemann M. Stabilisierung von O2-sensitiven Photolumineszenzsignalen durch Temperaturvariation. In: <i>Proceedings 22. GMA/ITG-Fachtagung Sensoren Und Messsysteme 2024</i>. ; 2024:66-71. doi:<a href=\"https://doi.org/10.5162/sensoren2024/A3.1\">10.5162/sensoren2024/A3.1</a>","ieee":"L. Kothe, S. Ester, M. Poeplau, M. Wengenroth, and M. Tiemann, “Stabilisierung von O2-sensitiven Photolumineszenzsignalen durch Temperaturvariation,” in <i>Proceedings 22. GMA/ITG-Fachtagung Sensoren und Messsysteme 2024</i>, 2024, pp. 66–71, doi: <a href=\"https://doi.org/10.5162/sensoren2024/A3.1\">10.5162/sensoren2024/A3.1</a>.","apa":"Kothe, L., Ester, S., Poeplau, M., Wengenroth, M., &#38; Tiemann, M. (2024). Stabilisierung von O2-sensitiven Photolumineszenzsignalen durch Temperaturvariation. <i>Proceedings 22. GMA/ITG-Fachtagung Sensoren Und Messsysteme 2024</i>, 66–71. <a href=\"https://doi.org/10.5162/sensoren2024/A3.1\">https://doi.org/10.5162/sensoren2024/A3.1</a>","short":"L. Kothe, S. Ester, M. Poeplau, M. Wengenroth, M. Tiemann, in: Proceedings 22. GMA/ITG-Fachtagung Sensoren Und Messsysteme 2024, 2024, pp. 66–71.","chicago":"Kothe, Linda, Stephan Ester, Michael Poeplau, Marc Wengenroth, and Michael Tiemann. “Stabilisierung von O2-Sensitiven Photolumineszenzsignalen Durch Temperaturvariation.” In <i>Proceedings 22. GMA/ITG-Fachtagung Sensoren Und Messsysteme 2024</i>, 66–71, 2024. <a href=\"https://doi.org/10.5162/sensoren2024/A3.1\">https://doi.org/10.5162/sensoren2024/A3.1</a>."},"publication":"Proceedings 22. GMA/ITG-Fachtagung Sensoren und Messsysteme 2024","abstract":[{"text":"In dieser Arbeit werden Untersuchungen zur sauerstoffabhängigen Photolumineszenz von Zink-Zinn-Oxid-Partikeln präsentiert, welche perspektivisch für die optische Sauerstoffdetektion eingesetzt werden sollen. Zink-Zinn-Oxid zeigt eine sauerstoffabhängige Photolumineszenz im sichtbaren Spektralbereich und wird hier als eine photostabile Alternative zu den kommerziell verfügbaren metallorganischen Verbindungen vorgestellt. Der Fokus liegt dabei auf dem Einfluss der Temperatur auf die Sauerstoffsensitivität der Photolumineszenz. Wir zeigen, dass bereits leichte Temperaturerhöhungen zu einer signifikanten Verbesserung der Sauerstoffsensitivität der Photolumineszenz führen und gleichzeitig die Signalqualität erhöhen.","lang":"ger"}],"quality_controlled":"1","date_created":"2024-07-26T07:20:30Z","oa":"1","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"type":"conference"},{"oa":"1","file_date_updated":"2024-09-03T13:58:18Z","citation":{"mla":"Baier, Dominik, et al. “Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O.” <i>Chemosensors</i>, vol. 12, no. 9, MDPI, 2024, p. 178, doi:<a href=\"https://doi.org/10.3390/chemosensors12090178\">10.3390/chemosensors12090178</a>.","bibtex":"@article{Baier_Krüger_Wagner_Tiemann_Weinberger_2024, title={Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O}, volume={12}, DOI={<a href=\"https://doi.org/10.3390/chemosensors12090178\">10.3390/chemosensors12090178</a>}, number={9}, journal={Chemosensors}, publisher={MDPI}, author={Baier, Dominik  and Krüger, Alexander  and Wagner, Thorsten  and Tiemann, Michael and Weinberger, Christian}, year={2024}, pages={178} }","ama":"Baier D, Krüger A, Wagner T, Tiemann M, Weinberger C. Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O. <i>Chemosensors</i>. 2024;12(9):178. doi:<a href=\"https://doi.org/10.3390/chemosensors12090178\">10.3390/chemosensors12090178</a>","ieee":"D. Baier, A. Krüger, T. Wagner, M. Tiemann, and C. Weinberger, “Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O,” <i>Chemosensors</i>, vol. 12, no. 9, p. 178, 2024, doi: <a href=\"https://doi.org/10.3390/chemosensors12090178\">10.3390/chemosensors12090178</a>.","apa":"Baier, D., Krüger, A., Wagner, T., Tiemann, M., &#38; Weinberger, C. (2024). Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O. <i>Chemosensors</i>, <i>12</i>(9), 178. <a href=\"https://doi.org/10.3390/chemosensors12090178\">https://doi.org/10.3390/chemosensors12090178</a>","short":"D. Baier, A. Krüger, T. Wagner, M. Tiemann, C. Weinberger, Chemosensors 12 (2024) 178.","chicago":"Baier, Dominik , Alexander  Krüger, Thorsten  Wagner, Michael Tiemann, and Christian Weinberger. “Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O.” <i>Chemosensors</i> 12, no. 9 (2024): 178. <a href=\"https://doi.org/10.3390/chemosensors12090178\">https://doi.org/10.3390/chemosensors12090178</a>."},"quality_controlled":"1","page":"178","_id":"55999","publisher":"MDPI","ddc":["540"],"user_id":"11848","volume":12,"status":"public","has_accepted_license":"1","file":[{"file_id":"56000","success":1,"content_type":"application/pdf","file_name":"chemosensors-12-00178.pdf","file_size":3275869,"access_level":"closed","relation":"main_file","date_updated":"2024-09-03T13:58:18Z","date_created":"2024-09-03T13:58:18Z","creator":"cweinber"}],"date_created":"2024-09-03T13:49:42Z","keyword":["resistive gas sensor","chemiresistor","semiconductor","metal oxide","In2O3","mesoporous","hydrogen","humidtiy","machine learning","sustainable"],"type":"journal_article","department":[{"_id":"2"},{"_id":"307"}],"issue":"9","publication":"Chemosensors","abstract":[{"lang":"eng","text":"Clean hydrogen is a key aspect of carbon neutrality, necessitating robust methods for monitoring hydrogen concentration in critical infrastructures like pipelines or power plants. While semiconducting metal oxides such as In2O3 can monitor gas concentrations down to the ppm range, they often exhibit cross-sensitivity to other gases like H2O. In this study, we investigated whether cyclic optical illumination of a gas-sensitive In2O3 layer creates identifiable changes in a gas sensor´s electronic resistance that can be linked to H2 and H2O concentrations via machine learning. We exposed nanostructured In2O3 with a large surface area of 95 m2 g-1 to H2 concentrations (0-800 ppm) and relative humidity (0-70%) under cyclic activation utilizing blue light. The sensors were tested for 20 classes of gas combinations. A support vector machine achieved classification rates up to 92.0%, with reliable reproducibility (88.2 ± 2.7%) across five individual sensors using 10-fold cross-validation. Our findings suggest that cyclic optical activation can be used as a tool to classify H2 and H2O concentrations."}],"main_file_link":[{"url":"https://www.mdpi.com/2227-9040/12/9/178","open_access":"1"}],"language":[{"iso":"eng"}],"doi":"10.3390/chemosensors12090178","title":"Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O","year":"2024","author":[{"full_name":"Baier, Dominik ","first_name":"Dominik ","last_name":"Baier"},{"full_name":"Krüger, Alexander ","last_name":"Krüger","first_name":"Alexander "},{"full_name":"Wagner, Thorsten ","first_name":"Thorsten ","last_name":"Wagner"},{"id":"23547","full_name":"Tiemann, Michael","last_name":"Tiemann","first_name":"Michael","orcid":"0000-0003-1711-2722"},{"id":"11848","full_name":"Weinberger, Christian","first_name":"Christian","last_name":"Weinberger"}],"publication_identifier":{"issn":["2227-9040"]},"date_updated":"2025-11-26T12:14:21Z","publication_status":"published","intvolume":"        12","article_type":"original"}]