--- _id: '19844' abstract: - lang: eng text: The defect-electronic properties of {112} microfaceted surfaces of epitaxially grown CuInSe2 thin films are investigated by scanning tunneling spectroscopy and photoelectron spectroscopy techniques after various surface treatments. The intrinsic CuInSe2 surface is found to be largely passivated in terms of electronic defect levels in the band-gap region. However, surface oxidation leads to an overall high density of defect levels in conjunction with a considerable net surface dipole, which persists even after oxide removal. Yet, a subsequent annealing under vacuum restores the initial condition. Such oxidation/reduction cycles are reversible for many times providing robust control of the surface and interface properties in these materials. Based on ab initio simulations, a mechanism where oxygen dissociatively adsorbs and subsequently diffuses to a subsurface site is proposed as the initial step of the observed dipole formation. Our results emphasize the relevance of oxidation-induced dipole effects at the thin film surface and provide a comprehensive understanding toward passivation strategies of these surfaces. author: - first_name: Amala full_name: Elizabeth, Amala last_name: Elizabeth - first_name: Sudhir K. full_name: Sahoo, Sudhir K. last_name: Sahoo - first_name: David full_name: Lockhorn, David last_name: Lockhorn - first_name: Alexander full_name: Timmer, Alexander last_name: Timmer - first_name: Nabi full_name: Aghdassi, Nabi last_name: Aghdassi - first_name: Helmut full_name: Zacharias, Helmut last_name: Zacharias - first_name: Thomas full_name: Kühne, Thomas id: '49079' last_name: Kühne - first_name: Susanne full_name: Siebentritt, Susanne last_name: Siebentritt - first_name: Hossein full_name: Mirhosseini, Hossein id: '71051' last_name: Mirhosseini orcid: https://orcid.org/0000-0001-6179-1545 - first_name: Harry full_name: Mönig, Harry last_name: Mönig citation: ama: Elizabeth A, Sahoo SK, Lockhorn D, et al. Oxidation/reduction cycles and their reversible effect on the dipole formation at CuInSe2 surfaces. Phys Rev Materials. 2020;4:063401. doi:10.1103/PhysRevMaterials.4.063401 apa: Elizabeth, A., Sahoo, S. K., Lockhorn, D., Timmer, A., Aghdassi, N., Zacharias, H., Kühne, T., Siebentritt, S., Mirhosseini, H., & Mönig, H. (2020). Oxidation/reduction cycles and their reversible effect on the dipole formation at CuInSe2 surfaces. Phys. Rev. Materials, 4, 063401. https://doi.org/10.1103/PhysRevMaterials.4.063401 bibtex: '@article{Elizabeth_Sahoo_Lockhorn_Timmer_Aghdassi_Zacharias_Kühne_Siebentritt_Mirhosseini_Mönig_2020, title={ Oxidation/reduction cycles and their reversible effect on the dipole formation at CuInSe2 surfaces}, volume={4}, DOI={10.1103/PhysRevMaterials.4.063401}, journal={Phys. Rev. Materials}, publisher={American Physical Society}, author={Elizabeth, Amala and Sahoo, Sudhir K. and Lockhorn, David and Timmer, Alexander and Aghdassi, Nabi and Zacharias, Helmut and Kühne, Thomas and Siebentritt, Susanne and Mirhosseini, Hossein and Mönig, Harry}, year={2020}, pages={063401} }' chicago: 'Elizabeth, Amala, Sudhir K. Sahoo, David Lockhorn, Alexander Timmer, Nabi Aghdassi, Helmut Zacharias, Thomas Kühne, Susanne Siebentritt, Hossein Mirhosseini, and Harry Mönig. “ Oxidation/Reduction Cycles and Their Reversible Effect on the Dipole Formation at CuInSe2 Surfaces.” Phys. Rev. Materials 4 (2020): 063401. https://doi.org/10.1103/PhysRevMaterials.4.063401.' ieee: 'A. Elizabeth et al., “ Oxidation/reduction cycles and their reversible effect on the dipole formation at CuInSe2 surfaces,” Phys. Rev. Materials, vol. 4, p. 063401, 2020, doi: 10.1103/PhysRevMaterials.4.063401.' mla: Elizabeth, Amala, et al. “ Oxidation/Reduction Cycles and Their Reversible Effect on the Dipole Formation at CuInSe2 Surfaces.” Phys. Rev. Materials, vol. 4, American Physical Society, 2020, p. 063401, doi:10.1103/PhysRevMaterials.4.063401. short: A. Elizabeth, S.K. Sahoo, D. Lockhorn, A. Timmer, N. Aghdassi, H. Zacharias, T. Kühne, S. Siebentritt, H. Mirhosseini, H. Mönig, Phys. Rev. Materials 4 (2020) 063401. date_created: 2020-10-02T09:16:41Z date_updated: 2022-07-21T09:32:16Z department: - _id: '304' doi: 10.1103/PhysRevMaterials.4.063401 intvolume: ' 4' language: - iso: eng page: '063401' project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Phys. Rev. Materials publisher: American Physical Society status: public title: ' Oxidation/reduction cycles and their reversible effect on the dipole formation at CuInSe2 surfaces' type: journal_article user_id: '71051' volume: 4 year: '2020' ... --- _id: '21112' abstract: - lang: eng text: Photovoltaics is one of the most promising and fastest-growing renewable energy technologies. Although the price-performance ratio of solar cells has improved significantly over recent years{,} further systematic investigations are needed to achieve higher performance and lower cost for future solar cells. In conjunction with experiments{,} computer simulations are powerful tools to investigate the thermodynamics and kinetics of solar cells. Over the last few years{,} we have developed and employed advanced computational techniques to gain a better understanding of solar cells based on copper indium gallium selenide (Cu(In{,}Ga)Se2). Furthermore{,} we have utilized state-of-the-art data-driven science and machine learning for the development of photovoltaic materials. In this Perspective{,} we review our results along with a survey of the field. author: - first_name: S. Hossein full_name: Mirhosseini, S. Hossein id: '71051' last_name: Mirhosseini orcid: 0000-0001-6179-1545 - first_name: Ramya full_name: Kormath Madam Raghupathy, Ramya id: '71692' last_name: Kormath Madam Raghupathy orcid: https://orcid.org/0000-0003-4667-9744 - first_name: Sudhir K. full_name: Sahoo, Sudhir K. last_name: Sahoo - first_name: Hendrik full_name: Wiebeler, Hendrik last_name: Wiebeler - first_name: Manjusha full_name: Chugh, Manjusha id: '71511' last_name: Chugh - first_name: Thomas full_name: Kühne, Thomas id: '49079' last_name: Kühne citation: ama: Mirhosseini SH, Kormath Madam Raghupathy R, Sahoo SK, Wiebeler H, Chugh M, Kühne T. In silico investigation of Cu(In,Ga)Se2-based solar cells. Phys Chem Chem Phys. 2020;22:26682-26701. doi:10.1039/D0CP04712K apa: Mirhosseini, S. H., Kormath Madam Raghupathy, R., Sahoo, S. K., Wiebeler, H., Chugh, M., & Kühne, T. (2020). In silico investigation of Cu(In,Ga)Se2-based solar cells. Phys. Chem. Chem. Phys., 22, 26682–26701. https://doi.org/10.1039/D0CP04712K bibtex: '@article{Mirhosseini_Kormath Madam Raghupathy_Sahoo_Wiebeler_Chugh_Kühne_2020, title={In silico investigation of Cu(In,Ga)Se2-based solar cells}, volume={22}, DOI={10.1039/D0CP04712K}, journal={Phys. Chem. Chem. Phys.}, publisher={The Royal Society of Chemistry}, author={Mirhosseini, S. Hossein and Kormath Madam Raghupathy, Ramya and Sahoo, Sudhir K. and Wiebeler, Hendrik and Chugh, Manjusha and Kühne, Thomas}, year={2020}, pages={26682–26701} }' chicago: 'Mirhosseini, S. Hossein, Ramya Kormath Madam Raghupathy, Sudhir K. Sahoo, Hendrik Wiebeler, Manjusha Chugh, and Thomas Kühne. “In Silico Investigation of Cu(In,Ga)Se2-Based Solar Cells.” Phys. Chem. Chem. Phys. 22 (2020): 26682–701. https://doi.org/10.1039/D0CP04712K.' ieee: 'S. H. Mirhosseini, R. Kormath Madam Raghupathy, S. K. Sahoo, H. Wiebeler, M. Chugh, and T. Kühne, “In silico investigation of Cu(In,Ga)Se2-based solar cells,” Phys. Chem. Chem. Phys., vol. 22, pp. 26682–26701, 2020, doi: 10.1039/D0CP04712K.' mla: Mirhosseini, S. Hossein, et al. “In Silico Investigation of Cu(In,Ga)Se2-Based Solar Cells.” Phys. Chem. Chem. Phys., vol. 22, The Royal Society of Chemistry, 2020, pp. 26682–701, doi:10.1039/D0CP04712K. short: S.H. Mirhosseini, R. Kormath Madam Raghupathy, S.K. Sahoo, H. Wiebeler, M. Chugh, T. Kühne, Phys. Chem. Chem. Phys. 22 (2020) 26682–26701. date_created: 2021-01-29T15:21:45Z date_updated: 2022-07-21T09:34:02Z department: - _id: '304' doi: 10.1039/D0CP04712K intvolume: ' 22' language: - iso: eng page: 26682-26701 project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Phys. Chem. Chem. Phys. publisher: The Royal Society of Chemistry status: public title: In silico investigation of Cu(In,Ga)Se2-based solar cells type: journal_article user_id: '71051' volume: 22 year: '2020' ... --- _id: '21240' abstract: - lang: eng text: Rechargeable aqueous Zn-ion energy storage devices are promising candidates for next-generation energy storage technologies. However, the lack of highly reversible Zn2+-storage anode materials with low potential windows remains a primary concern. Here, we report a two-dimensional polyarylimide covalent organic framework (PI-COF) anode with high-kinetics Zn2+-storage capability. The well-organized pore channels of PI-COF allow the high accessibility of the build-in redox-active carbonyl groups and efficient ion diffusion with a low energy barrier. The constructed PI-COF anode exhibits a specific capacity (332 C g–1 or 92 mAh g–1 at 0.7 A g–1), a high rate capability (79.8% at 7 A g–1), and a long cycle life (85% over 4000 cycles). In situ Raman investigation and first-principle calculations clarify the two-step Zn2+-storage mechanism, in which imide carbonyl groups reversibly form negatively charged enolates. Dendrite-free full Zn-ion devices are fabricated by coupling PI-COF anodes with MnO2 cathodes, delivering excellent energy densities (23.9 ∼ 66.5 Wh kg–1) and supercapacitor-level power densities (133 ∼ 4782 W kg–1). This study demonstrates the feasibility of covalent organic framework as Zn2+-storage anodes and shows a promising prospect for constructing reliable aqueous energy storage devices. author: - first_name: Minghao full_name: Yu, Minghao last_name: Yu - first_name: Naisa full_name: Chandrasekhar, Naisa last_name: Chandrasekhar - first_name: Ramya full_name: Kormath Madam Raghupathy, Ramya id: '71692' last_name: Kormath Madam Raghupathy orcid: https://orcid.org/0000-0003-4667-9744 - first_name: Khoa Hoang full_name: Ly, Khoa Hoang last_name: Ly - first_name: Haozhe full_name: Zhang, Haozhe last_name: Zhang - first_name: Evgenia full_name: Dmitrieva, Evgenia last_name: Dmitrieva - first_name: Chaolun full_name: Liang, Chaolun last_name: Liang - first_name: Xihong full_name: Lu, Xihong last_name: Lu - first_name: Thomas full_name: Kühne, Thomas id: '49079' last_name: Kühne - first_name: S. Hossein full_name: Mirhosseini, S. Hossein id: '71051' last_name: Mirhosseini orcid: 0000-0001-6179-1545 - first_name: Inez M. full_name: Weidinger, Inez M. last_name: Weidinger - first_name: Xinliang full_name: Feng, Xinliang last_name: Feng citation: ama: Yu M, Chandrasekhar N, Kormath Madam Raghupathy R, et al. A High-Rate Two-Dimensional Polyarylimide Covalent Organic Framework Anode for Aqueous Zn-Ion Energy Storage Devices. Journal of the American Chemical Society. 2020;142(46):19570-19578. doi:10.1021/jacs.0c07992 apa: Yu, M., Chandrasekhar, N., Kormath Madam Raghupathy, R., Ly, K. H., Zhang, H., Dmitrieva, E., Liang, C., Lu, X., Kühne, T., Mirhosseini, S. H., Weidinger, I. M., & Feng, X. (2020). A High-Rate Two-Dimensional Polyarylimide Covalent Organic Framework Anode for Aqueous Zn-Ion Energy Storage Devices. Journal of the American Chemical Society, 142(46), 19570–19578. https://doi.org/10.1021/jacs.0c07992 bibtex: '@article{Yu_Chandrasekhar_Kormath Madam Raghupathy_Ly_Zhang_Dmitrieva_Liang_Lu_Kühne_Mirhosseini_et al._2020, title={A High-Rate Two-Dimensional Polyarylimide Covalent Organic Framework Anode for Aqueous Zn-Ion Energy Storage Devices}, volume={142}, DOI={10.1021/jacs.0c07992}, number={46}, journal={Journal of the American Chemical Society}, publisher={American Chemical Society}, author={Yu, Minghao and Chandrasekhar, Naisa and Kormath Madam Raghupathy, Ramya and Ly, Khoa Hoang and Zhang, Haozhe and Dmitrieva, Evgenia and Liang, Chaolun and Lu, Xihong and Kühne, Thomas and Mirhosseini, S. Hossein and et al.}, year={2020}, pages={19570–19578} }' chicago: 'Yu, Minghao, Naisa Chandrasekhar, Ramya Kormath Madam Raghupathy, Khoa Hoang Ly, Haozhe Zhang, Evgenia Dmitrieva, Chaolun Liang, et al. “A High-Rate Two-Dimensional Polyarylimide Covalent Organic Framework Anode for Aqueous Zn-Ion Energy Storage Devices.” Journal of the American Chemical Society 142, no. 46 (2020): 19570–78. https://doi.org/10.1021/jacs.0c07992.' ieee: 'M. Yu et al., “A High-Rate Two-Dimensional Polyarylimide Covalent Organic Framework Anode for Aqueous Zn-Ion Energy Storage Devices,” Journal of the American Chemical Society, vol. 142, no. 46, pp. 19570–19578, 2020, doi: 10.1021/jacs.0c07992.' mla: Yu, Minghao, et al. “A High-Rate Two-Dimensional Polyarylimide Covalent Organic Framework Anode for Aqueous Zn-Ion Energy Storage Devices.” Journal of the American Chemical Society, vol. 142, no. 46, American Chemical Society, 2020, pp. 19570–78, doi:10.1021/jacs.0c07992. short: M. Yu, N. Chandrasekhar, R. Kormath Madam Raghupathy, K.H. Ly, H. Zhang, E. Dmitrieva, C. Liang, X. Lu, T. Kühne, S.H. Mirhosseini, I.M. Weidinger, X. Feng, Journal of the American Chemical Society 142 (2020) 19570–19578. date_created: 2021-02-16T11:28:04Z date_updated: 2022-07-21T09:38:24Z department: - _id: '304' doi: 10.1021/jacs.0c07992 intvolume: ' 142' issue: '46' language: - iso: eng page: 19570-19578 project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Journal of the American Chemical Society publication_identifier: issn: - 0002-7863 publisher: American Chemical Society status: public title: A High-Rate Two-Dimensional Polyarylimide Covalent Organic Framework Anode for Aqueous Zn-Ion Energy Storage Devices type: journal_article user_id: '71051' volume: 142 year: '2020' ... --- _id: '17374' abstract: - lang: eng text: Lead halide perovskite semiconductors providing record efficiencies of solar cells have usually mixed compositions doped in A- and X-sites to enhance the phase stability. The cubic form of formamidinium (FA) lead iodide reveals excellent opto-electronic properties but transforms at room temperature (RT) into a hexagonal structure which does not effectively absorb visible light. This metastable form and the mechanism of its stabilization by Cs+ and Br− incorporation are poorly characterized and insufficiently understood. We report here the vibrational properties of cubic FAPbI3 investigated by DFT calculations on phonon frequencies and intensities, and micro-Raman spectroscopy. The effects of Cs+ and Br− partial substitution are discussed. We support our results with the study of FAPbBr3 which expands the identification of vibrational modes to the previously unpublished low frequency region (<500 cm−1). Our results show that the incorporation of Cs+ and Br− leads to the coupling of the displacement of the A-site components and weakens the bonds between FA+ and the PbX6 octahedra. We suggest that the enhancement of α-FAPbI3 stability can be a product of the release of tensile stresses in the Pb–X bond, which is reflected in a red-shift of the low frequency region of the Raman spectrum (<200 cm−1). author: - first_name: Josefa full_name: Ibaceta-Jaña, Josefa last_name: Ibaceta-Jaña - first_name: Ruslan full_name: Muydinov, Ruslan last_name: Muydinov - first_name: Pamela full_name: Rosado, Pamela last_name: Rosado - first_name: Hossein full_name: Mirhosseini, Hossein id: '71051' last_name: Mirhosseini orcid: https://orcid.org/0000-0001-6179-1545 - first_name: Manjusha full_name: Chugh, Manjusha id: '71511' last_name: Chugh - first_name: Olga full_name: Nazarenko, Olga last_name: Nazarenko - first_name: Dmitry N. full_name: Dirin, Dmitry N. last_name: Dirin - first_name: Dirk full_name: Heinrich, Dirk last_name: Heinrich - first_name: Markus R. full_name: Wagner, Markus R. last_name: Wagner - first_name: Thomas full_name: Kühne, Thomas id: '49079' last_name: Kühne - first_name: Bernd full_name: Szyszka, Bernd last_name: Szyszka - first_name: Maksym V. full_name: Kovalenko, Maksym V. last_name: Kovalenko - first_name: Axel full_name: Hoffmann, Axel last_name: Hoffmann citation: ama: Ibaceta-Jaña J, Muydinov R, Rosado P, et al. Vibrational dynamics in lead halide hybrid perovskites investigated by Raman spectroscopy. Phys Chem Chem Phys. 2020;22:5604-5614. doi:10.1039/C9CP06568G apa: Ibaceta-Jaña, J., Muydinov, R., Rosado, P., Mirhosseini, H., Chugh, M., Nazarenko, O., Dirin, D. N., Heinrich, D., Wagner, M. R., Kühne, T., Szyszka, B., Kovalenko, M. V., & Hoffmann, A. (2020). Vibrational dynamics in lead halide hybrid perovskites investigated by Raman spectroscopy. Phys. Chem. Chem. Phys., 22, 5604–5614. https://doi.org/10.1039/C9CP06568G bibtex: '@article{Ibaceta-Jaña_Muydinov_Rosado_Mirhosseini_Chugh_Nazarenko_Dirin_Heinrich_Wagner_Kühne_et al._2020, title={Vibrational dynamics in lead halide hybrid perovskites investigated by Raman spectroscopy}, volume={22}, DOI={10.1039/C9CP06568G}, journal={Phys. Chem. Chem. Phys.}, publisher={The Royal Society of Chemistry}, author={Ibaceta-Jaña, Josefa and Muydinov, Ruslan and Rosado, Pamela and Mirhosseini, Hossein and Chugh, Manjusha and Nazarenko, Olga and Dirin, Dmitry N. and Heinrich, Dirk and Wagner, Markus R. and Kühne, Thomas and et al.}, year={2020}, pages={5604–5614} }' chicago: 'Ibaceta-Jaña, Josefa, Ruslan Muydinov, Pamela Rosado, Hossein Mirhosseini, Manjusha Chugh, Olga Nazarenko, Dmitry N. Dirin, et al. “Vibrational Dynamics in Lead Halide Hybrid Perovskites Investigated by Raman Spectroscopy.” Phys. Chem. Chem. Phys. 22 (2020): 5604–14. https://doi.org/10.1039/C9CP06568G.' ieee: 'J. Ibaceta-Jaña et al., “Vibrational dynamics in lead halide hybrid perovskites investigated by Raman spectroscopy,” Phys. Chem. Chem. Phys., vol. 22, pp. 5604–5614, 2020, doi: 10.1039/C9CP06568G.' mla: Ibaceta-Jaña, Josefa, et al. “Vibrational Dynamics in Lead Halide Hybrid Perovskites Investigated by Raman Spectroscopy.” Phys. Chem. Chem. Phys., vol. 22, The Royal Society of Chemistry, 2020, pp. 5604–14, doi:10.1039/C9CP06568G. short: J. Ibaceta-Jaña, R. Muydinov, P. Rosado, H. Mirhosseini, M. Chugh, O. Nazarenko, D.N. Dirin, D. Heinrich, M.R. Wagner, T. Kühne, B. Szyszka, M.V. Kovalenko, A. Hoffmann, Phys. Chem. Chem. Phys. 22 (2020) 5604–5614. date_created: 2020-07-14T09:10:16Z date_updated: 2022-07-21T09:37:51Z department: - _id: '304' doi: 10.1039/C9CP06568G intvolume: ' 22' language: - iso: eng page: 5604-5614 project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Phys. Chem. Chem. Phys. publisher: The Royal Society of Chemistry status: public title: Vibrational dynamics in lead halide hybrid perovskites investigated by Raman spectroscopy type: journal_article user_id: '71051' volume: 22 year: '2020' ... --- _id: '17376' abstract: - lang: eng text: The record conversion efficiency of thin-film solar cells based on Cu(In,Ga)Se2 (CIGS) absorbers has exceeded 23%. Such a high performance is currently only attainable by the incorporation of heavy alkali metals like Cs into the absorber through an alkali fluoride post-deposition treatment (PDT). As the effect of the incorporated heavy alkali metals is under discussion, we investigated the local composition and microstructure of high efficiency CIGS solar cells via various high-resolution techniques in a combinatory approach. An accumulation of Cs is clearly detected at the p-n junction along with variations in the local CIGS composition, showing the formation of a beneficial secondary phase with a laterally inhomogeneous distribution. Additionally, Cs accumulations were detected at grain boundaries with a random misorientation of the adjacent grains where a reduced Cu concentration and increased In and Se concentrations are detected. No accumulation was found at Σ3 twin boundaries as well as the grain interior. These experimental findings are in excellent agreement with complementary ab-initio calculations, demonstrating that the grain boundaries are passivated by the presence of Cs. Further, it is unlikely that Cs with its large ionic radius is incorporated into the CIGS grains where it would cause detrimental defects. author: - first_name: Philipp full_name: Schöppe, Philipp last_name: Schöppe - first_name: Sven full_name: Schönherr, Sven last_name: Schönherr - first_name: Manjusha full_name: Chugh, Manjusha id: '71511' last_name: Chugh - first_name: Hossein full_name: Mirhosseini, Hossein id: '71051' last_name: Mirhosseini orcid: https://orcid.org/0000-0001-6179-1545 - first_name: Philip full_name: Jackson, Philip last_name: Jackson - first_name: Roland full_name: Wuerz, Roland last_name: Wuerz - first_name: Maurizio full_name: Ritzer, Maurizio last_name: Ritzer - first_name: Andreas full_name: Johannes, Andreas last_name: Johannes - first_name: Gema full_name: Martínez-Criado, Gema last_name: Martínez-Criado - first_name: Wolfgang full_name: Wisniewski, Wolfgang last_name: Wisniewski - first_name: Torsten full_name: Schwarz, Torsten last_name: Schwarz - first_name: Christian full_name: T. Plass, Christian last_name: T. Plass - first_name: Martin full_name: Hafermann, Martin last_name: Hafermann - first_name: Thomas full_name: Kühne, Thomas id: '49079' last_name: Kühne - first_name: Claudia full_name: S. Schnohr, Claudia last_name: S. Schnohr - first_name: Carsten full_name: Ronning, Carsten last_name: Ronning citation: ama: Schöppe P, Schönherr S, Chugh M, et al. Revealing the origin of the beneficial effect of cesium in highly efficient Cu(In,Ga)Se2 solar cells. Nano Energy. 2020;71:104622. doi:https://doi.org/10.1016/j.nanoen.2020.104622 apa: Schöppe, P., Schönherr, S., Chugh, M., Mirhosseini, H., Jackson, P., Wuerz, R., Ritzer, M., Johannes, A., Martínez-Criado, G., Wisniewski, W., Schwarz, T., T. Plass, C., Hafermann, M., Kühne, T., S. Schnohr, C., & Ronning, C. (2020). Revealing the origin of the beneficial effect of cesium in highly efficient Cu(In,Ga)Se2 solar cells. Nano Energy, 71, 104622. https://doi.org/10.1016/j.nanoen.2020.104622 bibtex: '@article{Schöppe_Schönherr_Chugh_Mirhosseini_Jackson_Wuerz_Ritzer_Johannes_Martínez-Criado_Wisniewski_et al._2020, title={Revealing the origin of the beneficial effect of cesium in highly efficient Cu(In,Ga)Se2 solar cells}, volume={71}, DOI={https://doi.org/10.1016/j.nanoen.2020.104622}, journal={Nano Energy}, author={Schöppe, Philipp and Schönherr, Sven and Chugh, Manjusha and Mirhosseini, Hossein and Jackson, Philip and Wuerz, Roland and Ritzer, Maurizio and Johannes, Andreas and Martínez-Criado, Gema and Wisniewski, Wolfgang and et al.}, year={2020}, pages={104622} }' chicago: 'Schöppe, Philipp, Sven Schönherr, Manjusha Chugh, Hossein Mirhosseini, Philip Jackson, Roland Wuerz, Maurizio Ritzer, et al. “Revealing the Origin of the Beneficial Effect of Cesium in Highly Efficient Cu(In,Ga)Se2 Solar Cells.” Nano Energy 71 (2020): 104622. https://doi.org/10.1016/j.nanoen.2020.104622.' ieee: 'P. Schöppe et al., “Revealing the origin of the beneficial effect of cesium in highly efficient Cu(In,Ga)Se2 solar cells,” Nano Energy, vol. 71, p. 104622, 2020, doi: https://doi.org/10.1016/j.nanoen.2020.104622.' mla: Schöppe, Philipp, et al. “Revealing the Origin of the Beneficial Effect of Cesium in Highly Efficient Cu(In,Ga)Se2 Solar Cells.” Nano Energy, vol. 71, 2020, p. 104622, doi:https://doi.org/10.1016/j.nanoen.2020.104622. short: P. Schöppe, S. Schönherr, M. Chugh, H. Mirhosseini, P. Jackson, R. Wuerz, M. Ritzer, A. Johannes, G. Martínez-Criado, W. Wisniewski, T. Schwarz, C. T. Plass, M. Hafermann, T. Kühne, C. S. Schnohr, C. Ronning, Nano Energy 71 (2020) 104622. date_created: 2020-07-14T09:15:14Z date_updated: 2022-07-21T09:46:46Z department: - _id: '304' doi: https://doi.org/10.1016/j.nanoen.2020.104622 intvolume: ' 71' language: - iso: eng page: '104622' project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Nano Energy publication_identifier: issn: - 2211-2855 status: public title: Revealing the origin of the beneficial effect of cesium in highly efficient Cu(In,Ga)Se2 solar cells type: journal_article user_id: '71051' volume: 71 year: '2020' ... --- _id: '32425' author: - first_name: Johanna full_name: Tönsing, Johanna id: '52678' last_name: Tönsing citation: ama: 'Tönsing J. Animalische Epistemologie: Tierwahrheiten bei Franz Kafka am Beispiel von “Ein Bericht für eine Akademie.”; 2020.' apa: 'Tönsing, J. (2020). Animalische Epistemologie: Tierwahrheiten bei Franz Kafka am Beispiel von “Ein Bericht für eine Akademie.”' bibtex: '@book{Tönsing_2020, place={Paderborn}, title={Animalische Epistemologie: Tierwahrheiten bei Franz Kafka am Beispiel von “Ein Bericht für eine Akademie”}, author={Tönsing, Johanna}, year={2020} }' chicago: 'Tönsing, Johanna. Animalische Epistemologie: Tierwahrheiten bei Franz Kafka am Beispiel von “Ein Bericht für eine Akademie.” Paderborn, 2020.' ieee: 'J. Tönsing, Animalische Epistemologie: Tierwahrheiten bei Franz Kafka am Beispiel von “Ein Bericht für eine Akademie.” Paderborn, 2020.' mla: 'Tönsing, Johanna. Animalische Epistemologie: Tierwahrheiten bei Franz Kafka am Beispiel von “Ein Bericht für eine Akademie.” 2020.' short: 'J. Tönsing, Animalische Epistemologie: Tierwahrheiten bei Franz Kafka am Beispiel von “Ein Bericht für eine Akademie,” Paderborn, 2020.' date_created: 2022-07-26T08:55:17Z date_updated: 2022-07-26T08:56:29Z department: - _id: '464' language: - iso: ger main_file_link: - open_access: '1' url: https://digital.ub.uni-paderborn.de/urn/urn:nbn:de:hbz:466:2-37112 oa: '1' place: Paderborn status: public title: 'Animalische Epistemologie: Tierwahrheiten bei Franz Kafka am Beispiel von "Ein Bericht für eine Akademie"' type: book user_id: '14932' year: '2020' ... --- _id: '32442' abstract: - lang: eng text: 'AbstractElectroencephalographic (EEG) research indicates changes in adults’ low frequency bands of frontoparietal brain areas executing different balance tasks with increasing postural demands. However, this issue is unsolved for adolescents when performing the same balance task with increasing difficulty. Therefore, we examined the effects of a progressively increasing balance task difficulty on balance performance and brain activity in adolescents. Thirteen healthy adolescents aged 16–17 year performed tests in bipedal upright stance on a balance board with six progressively increasing levels of task difficulty. Postural sway and cortical activity were recorded simultaneously using a pressure sensitive measuring system and EEG. The power spectrum was analyzed for theta (4–7 Hz) and alpha-2 (10–12 Hz) frequency bands in pre-defined frontal, central, and parietal clusters of electrocortical sources. Repeated measures analysis of variance (rmANOVA) showed a significant main effect of task difficulty for postural sway (p < 0.001; d = 6.36). Concomitantly, the power spectrum changed in frontal, bilateral central, and bilateral parietal clusters. RmANOVAs revealed significant main effects of task difficulty for theta band power in the frontal (p < 0.001, d = 1.80) and both central clusters (left: p < 0.001, d = 1.49; right: p < 0.001, d = 1.42) as well as for alpha-2 band power in both parietal clusters (left: p < 0.001, d = 1.39; right: p < 0.001, d = 1.05) and in the central right cluster (p = 0.005, d = 0.92). Increases in theta band power (frontal, central) and decreases in alpha-2 power (central, parietal) with increasing balance task difficulty may reflect increased attentional processes and/or error monitoring as well as increased sensory information processing due to increasing postural demands. In general, our findings are mostly in agreement with studies conducted in adults. Similar to adult studies, our data with adolescents indicated the involvement of frontoparietal brain areas in the regulation of postural control. In addition, we detected that activity of selected brain areas (e.g., bilateral central) changed with increasing postural demands.' author: - first_name: Arnd full_name: Gebel, Arnd last_name: Gebel - first_name: Tim full_name: Lehmann, Tim last_name: Lehmann - first_name: Urs full_name: Granacher, Urs last_name: Granacher citation: ama: Gebel A, Lehmann T, Granacher U. Balance task difficulty affects postural sway and cortical activity in healthy adolescents. Experimental Brain Research. 2020;238(5):1323-1333. doi:10.1007/s00221-020-05810-1 apa: Gebel, A., Lehmann, T., & Granacher, U. (2020). Balance task difficulty affects postural sway and cortical activity in healthy adolescents. Experimental Brain Research, 238(5), 1323–1333. https://doi.org/10.1007/s00221-020-05810-1 bibtex: '@article{Gebel_Lehmann_Granacher_2020, title={Balance task difficulty affects postural sway and cortical activity in healthy adolescents}, volume={238}, DOI={10.1007/s00221-020-05810-1}, number={5}, journal={Experimental Brain Research}, publisher={Springer Science and Business Media LLC}, author={Gebel, Arnd and Lehmann, Tim and Granacher, Urs}, year={2020}, pages={1323–1333} }' chicago: 'Gebel, Arnd, Tim Lehmann, and Urs Granacher. “Balance Task Difficulty Affects Postural Sway and Cortical Activity in Healthy Adolescents.” Experimental Brain Research 238, no. 5 (2020): 1323–33. https://doi.org/10.1007/s00221-020-05810-1.' ieee: 'A. Gebel, T. Lehmann, and U. Granacher, “Balance task difficulty affects postural sway and cortical activity in healthy adolescents,” Experimental Brain Research, vol. 238, no. 5, pp. 1323–1333, 2020, doi: 10.1007/s00221-020-05810-1.' mla: Gebel, Arnd, et al. “Balance Task Difficulty Affects Postural Sway and Cortical Activity in Healthy Adolescents.” Experimental Brain Research, vol. 238, no. 5, Springer Science and Business Media LLC, 2020, pp. 1323–33, doi:10.1007/s00221-020-05810-1. short: A. Gebel, T. Lehmann, U. Granacher, Experimental Brain Research 238 (2020) 1323–1333. date_created: 2022-07-27T07:50:38Z date_updated: 2022-07-27T07:53:03Z doi: 10.1007/s00221-020-05810-1 intvolume: ' 238' issue: '5' keyword: - General Neuroscience language: - iso: eng page: 1323-1333 publication: Experimental Brain Research publication_identifier: issn: - 0014-4819 - 1432-1106 publication_status: published publisher: Springer Science and Business Media LLC status: public title: Balance task difficulty affects postural sway and cortical activity in healthy adolescents type: journal_article user_id: '41584' volume: 238 year: '2020' ... --- _id: '23855' author: - first_name: Kamal I. full_name: Aly, Kamal I. last_name: Aly - first_name: Jingjiang full_name: Sun, Jingjiang last_name: Sun - first_name: Dirk full_name: Kuckling, Dirk id: '287' last_name: Kuckling - first_name: Osama full_name: Younis, Osama last_name: Younis citation: ama: 'Aly KI, Sun J, Kuckling D, Younis O. Polyester resins based on soybean oil: synthesis and characterization. Journal of Polymer Research. 2020;27. doi:10.1007/s10965-020-02244-9' apa: 'Aly, K. I., Sun, J., Kuckling, D., & Younis, O. (2020). Polyester resins based on soybean oil: synthesis and characterization. Journal of Polymer Research, 27. https://doi.org/10.1007/s10965-020-02244-9' bibtex: '@article{Aly_Sun_Kuckling_Younis_2020, title={Polyester resins based on soybean oil: synthesis and characterization}, volume={27}, DOI={10.1007/s10965-020-02244-9}, journal={Journal of Polymer Research}, publisher={Springer}, author={Aly, Kamal I. and Sun, Jingjiang and Kuckling, Dirk and Younis, Osama}, year={2020} }' chicago: 'Aly, Kamal I., Jingjiang Sun, Dirk Kuckling, and Osama Younis. “Polyester Resins Based on Soybean Oil: Synthesis and Characterization.” Journal of Polymer Research 27 (2020). https://doi.org/10.1007/s10965-020-02244-9.' ieee: 'K. I. Aly, J. Sun, D. Kuckling, and O. Younis, “Polyester resins based on soybean oil: synthesis and characterization,” Journal of Polymer Research, vol. 27, 2020, doi: 10.1007/s10965-020-02244-9.' mla: 'Aly, Kamal I., et al. “Polyester Resins Based on Soybean Oil: Synthesis and Characterization.” Journal of Polymer Research, vol. 27, Springer, 2020, doi:10.1007/s10965-020-02244-9.' short: K.I. Aly, J. Sun, D. Kuckling, O. Younis, Journal of Polymer Research 27 (2020). date_created: 2021-09-07T10:25:39Z date_updated: 2022-07-28T09:47:17Z department: - _id: '311' doi: 10.1007/s10965-020-02244-9 intvolume: ' 27' language: - iso: eng publication: Journal of Polymer Research publication_identifier: issn: - 1022-9760 - 1572-8935 publication_status: published publisher: Springer status: public title: 'Polyester resins based on soybean oil: synthesis and characterization' type: journal_article user_id: '94' volume: 27 year: '2020' ... --- _id: '23852' author: - first_name: Jie full_name: Li, Jie last_name: Li - first_name: Chendong full_name: Ji, Chendong last_name: Ji - first_name: Baozhong full_name: Lü, Baozhong last_name: Lü - first_name: Maksim full_name: Rodin, Maksim last_name: Rodin - first_name: Jan full_name: Paradies, Jan id: '53339' last_name: Paradies orcid: 0000-0002-3698-668X - first_name: Meizhen full_name: Yin, Meizhen last_name: Yin - first_name: Dirk full_name: Kuckling, Dirk id: '287' last_name: Kuckling citation: ama: Li J, Ji C, Lü B, et al. Dually Crosslinked Supramolecular Hydrogel for Cancer Biomarker Sensing. ACS Applied Materials & Interfaces. 2020;12(33):36873-36881. doi:10.1021/acsami.0c08722 apa: Li, J., Ji, C., Lü, B., Rodin, M., Paradies, J., Yin, M., & Kuckling, D. (2020). Dually Crosslinked Supramolecular Hydrogel for Cancer Biomarker Sensing. ACS Applied Materials & Interfaces, 12(33), 36873–36881. https://doi.org/10.1021/acsami.0c08722 bibtex: '@article{Li_Ji_Lü_Rodin_Paradies_Yin_Kuckling_2020, title={Dually Crosslinked Supramolecular Hydrogel for Cancer Biomarker Sensing}, volume={12}, DOI={10.1021/acsami.0c08722}, number={33}, journal={ACS Applied Materials & Interfaces}, author={Li, Jie and Ji, Chendong and Lü, Baozhong and Rodin, Maksim and Paradies, Jan and Yin, Meizhen and Kuckling, Dirk}, year={2020}, pages={36873–36881} }' chicago: 'Li, Jie, Chendong Ji, Baozhong Lü, Maksim Rodin, Jan Paradies, Meizhen Yin, and Dirk Kuckling. “Dually Crosslinked Supramolecular Hydrogel for Cancer Biomarker Sensing.” ACS Applied Materials & Interfaces 12, no. 33 (2020): 36873–81. https://doi.org/10.1021/acsami.0c08722.' ieee: 'J. Li et al., “Dually Crosslinked Supramolecular Hydrogel for Cancer Biomarker Sensing,” ACS Applied Materials & Interfaces, vol. 12, no. 33, pp. 36873–36881, 2020, doi: 10.1021/acsami.0c08722.' mla: Li, Jie, et al. “Dually Crosslinked Supramolecular Hydrogel for Cancer Biomarker Sensing.” ACS Applied Materials & Interfaces, vol. 12, no. 33, 2020, pp. 36873–81, doi:10.1021/acsami.0c08722. short: J. Li, C. Ji, B. Lü, M. Rodin, J. Paradies, M. Yin, D. Kuckling, ACS Applied Materials & Interfaces 12 (2020) 36873–36881. date_created: 2021-09-07T10:20:06Z date_updated: 2022-07-28T09:46:19Z department: - _id: '311' doi: 10.1021/acsami.0c08722 intvolume: ' 12' issue: '33' language: - iso: eng page: 36873-36881 publication: ACS Applied Materials & Interfaces publication_identifier: issn: - 1944-8244 - 1944-8252 publication_status: published status: public title: Dually Crosslinked Supramolecular Hydrogel for Cancer Biomarker Sensing type: journal_article user_id: '94' volume: 12 year: '2020' ... --- _id: '23857' article_number: '2000067' author: - first_name: Peng full_name: Hou, Peng last_name: Hou - first_name: Peter full_name: Oechsle, Peter last_name: Oechsle - first_name: Dirk full_name: Kuckling, Dirk id: '287' last_name: Kuckling - first_name: Jan full_name: Paradies, Jan id: '53339' last_name: Paradies orcid: 0000-0002-3698-668X citation: ama: Hou P, Oechsle P, Kuckling D, Paradies J. Palladium‐Catalyzed Polycondensation for the Synthesis of Poly(Aryl)Sulfides. Macromolecular Rapid Communications. 2020;41(10). doi:10.1002/marc.202000067 apa: Hou, P., Oechsle, P., Kuckling, D., & Paradies, J. (2020). Palladium‐Catalyzed Polycondensation for the Synthesis of Poly(Aryl)Sulfides. Macromolecular Rapid Communications, 41(10), Article 2000067. https://doi.org/10.1002/marc.202000067 bibtex: '@article{Hou_Oechsle_Kuckling_Paradies_2020, title={Palladium‐Catalyzed Polycondensation for the Synthesis of Poly(Aryl)Sulfides}, volume={41}, DOI={10.1002/marc.202000067}, number={102000067}, journal={Macromolecular Rapid Communications}, publisher={Wiley-VCH}, author={Hou, Peng and Oechsle, Peter and Kuckling, Dirk and Paradies, Jan}, year={2020} }' chicago: Hou, Peng, Peter Oechsle, Dirk Kuckling, and Jan Paradies. “Palladium‐Catalyzed Polycondensation for the Synthesis of Poly(Aryl)Sulfides.” Macromolecular Rapid Communications 41, no. 10 (2020). https://doi.org/10.1002/marc.202000067. ieee: 'P. Hou, P. Oechsle, D. Kuckling, and J. Paradies, “Palladium‐Catalyzed Polycondensation for the Synthesis of Poly(Aryl)Sulfides,” Macromolecular Rapid Communications, vol. 41, no. 10, Art. no. 2000067, 2020, doi: 10.1002/marc.202000067.' mla: Hou, Peng, et al. “Palladium‐Catalyzed Polycondensation for the Synthesis of Poly(Aryl)Sulfides.” Macromolecular Rapid Communications, vol. 41, no. 10, 2000067, Wiley-VCH, 2020, doi:10.1002/marc.202000067. short: P. Hou, P. Oechsle, D. Kuckling, J. Paradies, Macromolecular Rapid Communications 41 (2020). date_created: 2021-09-07T10:31:11Z date_updated: 2022-07-28T09:47:38Z doi: 10.1002/marc.202000067 intvolume: ' 41' issue: '10' language: - iso: eng publication: Macromolecular Rapid Communications publication_identifier: issn: - 1022-1336 - 1521-3927 publication_status: published publisher: Wiley-VCH status: public title: Palladium‐Catalyzed Polycondensation for the Synthesis of Poly(Aryl)Sulfides type: journal_article user_id: '94' volume: 41 year: '2020' ...