[{"date_created":"2025-05-23T06:30:36Z","department":[{"_id":"15"},{"_id":"230"},{"_id":"289"},{"_id":"623"}],"type":"conference","citation":{"bibtex":"@inproceedings{Wetter_Gao_Rehberg_Wingenbach_Schumacher_Zentgraf_2024, title={Dielectric metasurface for wave-vector variant and circular polarization dependent transmission}, booktitle={Proceedings of The 14th International Conference on Metamaterials, Photonic Crystals and Plasmonics}, author={Wetter, Helene and Gao, Wenlong and Rehberg, Falk and Wingenbach, Jan and Schumacher, Stefan and Zentgraf, Thomas}, year={2024} }","ama":"Wetter H, Gao W, Rehberg F, Wingenbach J, Schumacher S, Zentgraf T. Dielectric metasurface for wave-vector variant and circular polarization dependent transmission. In: <i>Proceedings of The 14th International Conference on Metamaterials, Photonic Crystals and Plasmonics</i>. ; 2024.","mla":"Wetter, Helene, et al. “Dielectric Metasurface for Wave-Vector Variant and Circular Polarization Dependent Transmission.” <i>Proceedings of The 14th International Conference on Metamaterials, Photonic Crystals and Plasmonics</i>, 2024.","chicago":"Wetter, Helene, Wenlong Gao, Falk Rehberg, Jan Wingenbach, Stefan Schumacher, and Thomas Zentgraf. “Dielectric Metasurface for Wave-Vector Variant and Circular Polarization Dependent Transmission.” In <i>Proceedings of The 14th International Conference on Metamaterials, Photonic Crystals and Plasmonics</i>, 2024.","short":"H. Wetter, W. Gao, F. Rehberg, J. Wingenbach, S. Schumacher, T. Zentgraf, in: Proceedings of The 14th International Conference on Metamaterials, Photonic Crystals and Plasmonics, 2024.","ieee":"H. Wetter, W. Gao, F. Rehberg, J. Wingenbach, S. Schumacher, and T. Zentgraf, “Dielectric metasurface for wave-vector variant and circular polarization dependent transmission,” presented at the META 2024 - The 14th International Conference on Metamaterials, Photonic Crystals and Plasmonics, Toyama, Japan, 2024.","apa":"Wetter, H., Gao, W., Rehberg, F., Wingenbach, J., Schumacher, S., &#38; Zentgraf, T. (2024). Dielectric metasurface for wave-vector variant and circular polarization dependent transmission. <i>Proceedings of The 14th International Conference on Metamaterials, Photonic Crystals and Plasmonics</i>. META 2024 - The 14th International Conference on Metamaterials, Photonic Crystals and Plasmonics, Toyama, Japan."},"publication":"Proceedings of The 14th International Conference on Metamaterials, Photonic Crystals and Plasmonics","project":[{"_id":"53","grant_number":"231447078","name":"TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen"},{"_id":"54","name":"TRR 142 - A: TRR 142 - Project Area A"},{"_id":"164","grant_number":"231447078","name":"TRR 142 - A09: TRR 142 - Erzeugung von Drei-Photonen-Zuständen mit On-Chip Pumplichtunterdrückung in topologischen Wellenleitern (A09*)"}],"language":[{"iso":"eng"}],"_id":"60023","user_id":"30525","publication_identifier":{"issn":["2429-1390"]},"author":[{"full_name":"Wetter, Helene","first_name":"Helene","last_name":"Wetter"},{"last_name":"Gao","first_name":"Wenlong","full_name":"Gao, Wenlong"},{"full_name":"Rehberg, Falk","last_name":"Rehberg","first_name":"Falk"},{"first_name":"Jan","last_name":"Wingenbach","full_name":"Wingenbach, Jan","id":"69187"},{"id":"27271","first_name":"Stefan","last_name":"Schumacher","orcid":"0000-0003-4042-4951","full_name":"Schumacher, Stefan"},{"id":"30525","full_name":"Zentgraf, Thomas","last_name":"Zentgraf","orcid":"0000-0002-8662-1101","first_name":"Thomas"}],"conference":{"end_date":"2024-07-19","name":"META 2024 - The 14th International Conference on Metamaterials, Photonic Crystals and Plasmonics","start_date":"2024-07-16","location":"Toyama, Japan"},"status":"public","title":"Dielectric metasurface for wave-vector variant and circular polarization dependent transmission","year":"2024","date_updated":"2025-05-23T06:34:16Z"},{"citation":{"ama":"Bauch D, Köcher N, Heinisch N, Schumacher S. Time-bin entanglement in the deterministic generation of linear photonic cluster states. <i>APL Quantum</i>. 2024;1(3). doi:<a href=\"https://doi.org/10.1063/5.0214197\">10.1063/5.0214197</a>","bibtex":"@article{Bauch_Köcher_Heinisch_Schumacher_2024, title={Time-bin entanglement in the deterministic generation of linear photonic cluster states}, volume={1}, DOI={<a href=\"https://doi.org/10.1063/5.0214197\">10.1063/5.0214197</a>}, number={3036110}, journal={APL Quantum}, publisher={AIP Publishing}, author={Bauch, David and Köcher, Nikolas and Heinisch, Nils and Schumacher, Stefan}, year={2024} }","mla":"Bauch, David, et al. “Time-Bin Entanglement in the Deterministic Generation of Linear Photonic Cluster States.” <i>APL Quantum</i>, vol. 1, no. 3, 036110, AIP Publishing, 2024, doi:<a href=\"https://doi.org/10.1063/5.0214197\">10.1063/5.0214197</a>.","short":"D. Bauch, N. Köcher, N. Heinisch, S. Schumacher, APL Quantum 1 (2024).","chicago":"Bauch, David, Nikolas Köcher, Nils Heinisch, and Stefan Schumacher. “Time-Bin Entanglement in the Deterministic Generation of Linear Photonic Cluster States.” <i>APL Quantum</i> 1, no. 3 (2024). <a href=\"https://doi.org/10.1063/5.0214197\">https://doi.org/10.1063/5.0214197</a>.","apa":"Bauch, D., Köcher, N., Heinisch, N., &#38; Schumacher, S. (2024). Time-bin entanglement in the deterministic generation of linear photonic cluster states. <i>APL Quantum</i>, <i>1</i>(3), Article 036110. <a href=\"https://doi.org/10.1063/5.0214197\">https://doi.org/10.1063/5.0214197</a>","ieee":"D. Bauch, N. Köcher, N. Heinisch, and S. Schumacher, “Time-bin entanglement in the deterministic generation of linear photonic cluster states,” <i>APL Quantum</i>, vol. 1, no. 3, Art. no. 036110, 2024, doi: <a href=\"https://doi.org/10.1063/5.0214197\">10.1063/5.0214197</a>."},"project":[{"_id":"53","name":"TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen"},{"name":"TRR 142 - Project Area C","_id":"56"},{"_id":"173","name":"TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch bei Telekom Wellenlängen"},{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"_id":"266","name":"PhoQC: Photonisches Quantencomputing"}],"status":"public","_id":"61251","publisher":"AIP Publishing","user_id":"16199","volume":1,"publication":"APL Quantum","issue":"3","abstract":[{"lang":"eng","text":"<jats:p>We theoretically investigate strategies for the deterministic creation of trains of time-bin entangled photons using an individual quantum emitter described by a Λ-type electronic system. We explicitly demonstrate the theoretical generation of linear cluster states with substantial numbers of entangled photonic qubits in full microscopic numerical simulations. The underlying scheme is based on the manipulation of ground state coherences through precise optical driving. One important finding is that the most easily accessible quality metrics, the achievable rotation fidelities, fall short in assessing the actual quantum correlations of the emitted photons in the face of losses. To address this, we explicitly calculate stabilizer generator expectation values as a superior gauge for the quantum properties of the generated many-photon state. With widespread applicability in other emitter and excitation–emission schemes also, our work lays the conceptual foundations for an in-depth practical analysis of time-bin entanglement based on full numerical simulations with predictive capabilities for realistic systems and setups, including losses and imperfections. The specific results shown in the present work illustrate that with controlled minimization of losses and realistic system parameters for quantum-dot type systems, useful linear cluster states of significant lengths can be generated in the calculations, discussing the possibility of scalability for quantum information processing endeavors.</jats:p>"}],"date_created":"2025-09-12T11:08:59Z","type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"35"},{"_id":"230"},{"_id":"27"},{"_id":"429"},{"_id":"623"}],"year":"2024","title":"Time-bin entanglement in the deterministic generation of linear photonic cluster states","author":[{"last_name":"Bauch","first_name":"David","full_name":"Bauch, David"},{"full_name":"Köcher, Nikolas","last_name":"Köcher","first_name":"Nikolas","id":"79191"},{"last_name":"Heinisch","orcid":"0009-0006-0984-2097","first_name":"Nils","full_name":"Heinisch, Nils","id":"90283"},{"id":"27271","full_name":"Schumacher, Stefan","last_name":"Schumacher","first_name":"Stefan","orcid":"0000-0003-4042-4951"}],"publication_identifier":{"issn":["2835-0103"]},"publication_status":"published","date_updated":"2025-09-12T11:11:32Z","intvolume":"         1","article_number":"036110","language":[{"iso":"eng"}],"doi":"10.1063/5.0214197"},{"page":"3046-3054","_id":"61250","publisher":"American Chemical Society (ACS)","user_id":"16199","volume":11,"status":"public","citation":{"ieee":"C. Bennenhei <i>et al.</i>, “Organic Room-Temperature Polariton Condensate in a Higher-Order Topological Lattice,” <i>ACS Photonics</i>, vol. 11, no. 8, pp. 3046–3054, 2024, doi: <a href=\"https://doi.org/10.1021/acsphotonics.4c00268\">10.1021/acsphotonics.4c00268</a>.","apa":"Bennenhei, C., Shan, H., Struve, M., Kunte, N., Eilenberger, F., Ohmer, J., Fischer, U., Schumacher, S., Ma, X., Schneider, C., &#38; Esmann, M. (2024). Organic Room-Temperature Polariton Condensate in a Higher-Order Topological Lattice. <i>ACS Photonics</i>, <i>11</i>(8), 3046–3054. <a href=\"https://doi.org/10.1021/acsphotonics.4c00268\">https://doi.org/10.1021/acsphotonics.4c00268</a>","short":"C. Bennenhei, H. Shan, M. Struve, N. Kunte, F. Eilenberger, J. Ohmer, U. Fischer, S. Schumacher, X. Ma, C. Schneider, M. Esmann, ACS Photonics 11 (2024) 3046–3054.","chicago":"Bennenhei, Christoph, Hangyong Shan, Marti Struve, Nils Kunte, Falk Eilenberger, Jürgen Ohmer, Utz Fischer, et al. “Organic Room-Temperature Polariton Condensate in a Higher-Order Topological Lattice.” <i>ACS Photonics</i> 11, no. 8 (2024): 3046–54. <a href=\"https://doi.org/10.1021/acsphotonics.4c00268\">https://doi.org/10.1021/acsphotonics.4c00268</a>.","mla":"Bennenhei, Christoph, et al. “Organic Room-Temperature Polariton Condensate in a Higher-Order Topological Lattice.” <i>ACS Photonics</i>, vol. 11, no. 8, American Chemical Society (ACS), 2024, pp. 3046–54, doi:<a href=\"https://doi.org/10.1021/acsphotonics.4c00268\">10.1021/acsphotonics.4c00268</a>.","bibtex":"@article{Bennenhei_Shan_Struve_Kunte_Eilenberger_Ohmer_Fischer_Schumacher_Ma_Schneider_et al._2024, title={Organic Room-Temperature Polariton Condensate in a Higher-Order Topological Lattice}, volume={11}, DOI={<a href=\"https://doi.org/10.1021/acsphotonics.4c00268\">10.1021/acsphotonics.4c00268</a>}, number={8}, journal={ACS Photonics}, publisher={American Chemical Society (ACS)}, author={Bennenhei, Christoph and Shan, Hangyong and Struve, Marti and Kunte, Nils and Eilenberger, Falk and Ohmer, Jürgen and Fischer, Utz and Schumacher, Stefan and Ma, Xuekai and Schneider, Christian and et al.}, year={2024}, pages={3046–3054} }","ama":"Bennenhei C, Shan H, Struve M, et al. Organic Room-Temperature Polariton Condensate in a Higher-Order Topological Lattice. <i>ACS Photonics</i>. 2024;11(8):3046-3054. doi:<a href=\"https://doi.org/10.1021/acsphotonics.4c00268\">10.1021/acsphotonics.4c00268</a>"},"language":[{"iso":"eng"}],"doi":"10.1021/acsphotonics.4c00268","year":"2024","title":"Organic Room-Temperature Polariton Condensate in a Higher-Order Topological Lattice","author":[{"full_name":"Bennenhei, Christoph","last_name":"Bennenhei","first_name":"Christoph"},{"full_name":"Shan, Hangyong","first_name":"Hangyong","last_name":"Shan"},{"full_name":"Struve, Marti","last_name":"Struve","first_name":"Marti"},{"last_name":"Kunte","first_name":"Nils","full_name":"Kunte, Nils"},{"first_name":"Falk","last_name":"Eilenberger","full_name":"Eilenberger, Falk"},{"full_name":"Ohmer, Jürgen","first_name":"Jürgen","last_name":"Ohmer"},{"full_name":"Fischer, Utz","last_name":"Fischer","first_name":"Utz"},{"id":"27271","full_name":"Schumacher, Stefan","first_name":"Stefan","orcid":"0000-0003-4042-4951","last_name":"Schumacher"},{"first_name":"Xuekai","last_name":"Ma","full_name":"Ma, Xuekai","id":"59416"},{"full_name":"Schneider, Christian","last_name":"Schneider","first_name":"Christian"},{"last_name":"Esmann","first_name":"Martin","full_name":"Esmann, Martin"}],"publication_identifier":{"issn":["2330-4022","2330-4022"]},"publication_status":"published","date_updated":"2025-09-12T11:08:26Z","intvolume":"        11","date_created":"2025-09-12T11:06:43Z","type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"705"},{"_id":"35"},{"_id":"230"}],"publication":"ACS Photonics","issue":"8"},{"doi":"10.1103/physrevresearch.6.l012017","article_number":"L012017","language":[{"iso":"eng"}],"publication_status":"published","date_updated":"2025-09-12T11:18:05Z","intvolume":"         6","title":"Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons and entangled photon pairs","year":"2024","author":[{"id":"90283","full_name":"Heinisch, Nils","last_name":"Heinisch","orcid":"0009-0006-0984-2097","first_name":"Nils"},{"id":"79191","full_name":"Köcher, Nikolas","last_name":"Köcher","first_name":"Nikolas"},{"full_name":"Bauch, David","last_name":"Bauch","first_name":"David"},{"full_name":"Schumacher, Stefan","first_name":"Stefan","orcid":"0000-0003-4042-4951","last_name":"Schumacher","id":"27271"}],"publication_identifier":{"issn":["2643-1564"]},"type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"35"},{"_id":"230"},{"_id":"429"},{"_id":"27"}],"date_created":"2025-09-12T11:16:31Z","abstract":[{"text":"<jats:p>In the SUPER scheme (Swing-UP of the quantum EmitteR population), excitation of a quantum emitter is achieved with two off-resonant, red-detuned laser pulses. This allows the generation of high-quality single photons without the need of complex laser stray light suppression or careful spectral filtering. In the present work, we extend this promising method to quantum emitters, specifically semiconductor quantum dots, inside a resonant optical cavity. A significant advantage of the SUPER scheme is identified in that it eliminates re-excitation of the quantum emitter by suppressing photon emission during the excitation cycle. This, in turn, leads to almost ideal single-photon purity, overcoming a major factor typically limiting the quality of photons generated with quantum emitters in high-quality cavities. We further find that for cavity-mediated biexciton emission of degenerate photon pairs, the SUPER scheme leads to near-perfect biexciton initialization with very high values of polarization entanglement of emitted photon pairs.</jats:p>\r\n          <jats:sec>\r\n            <jats:title/>\r\n            <jats:supplementary-material>\r\n              <jats:permissions>\r\n                <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement>\r\n                <jats:copyright-year>2024</jats:copyright-year>\r\n              </jats:permissions>\r\n            </jats:supplementary-material>\r\n          </jats:sec>","lang":"eng"}],"issue":"1","publication":"Physical Review Research","user_id":"16199","volume":6,"publisher":"American Physical Society (APS)","_id":"61253","status":"public","project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"_id":"53","name":"TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen"},{"name":"TRR 142 - Project Area C","_id":"56"},{"_id":"173","name":"TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch bei Telekom Wellenlängen"}],"citation":{"chicago":"Heinisch, Nils, Nikolas Köcher, David Bauch, and Stefan Schumacher. “Swing-up Dynamics in Quantum Emitter Cavity Systems: Near Ideal Single Photons and Entangled Photon Pairs.” <i>Physical Review Research</i> 6, no. 1 (2024). <a href=\"https://doi.org/10.1103/physrevresearch.6.l012017\">https://doi.org/10.1103/physrevresearch.6.l012017</a>.","short":"N. Heinisch, N. Köcher, D. Bauch, S. Schumacher, Physical Review Research 6 (2024).","apa":"Heinisch, N., Köcher, N., Bauch, D., &#38; Schumacher, S. (2024). Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons and entangled photon pairs. <i>Physical Review Research</i>, <i>6</i>(1), Article L012017. <a href=\"https://doi.org/10.1103/physrevresearch.6.l012017\">https://doi.org/10.1103/physrevresearch.6.l012017</a>","ieee":"N. Heinisch, N. Köcher, D. Bauch, and S. Schumacher, “Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons and entangled photon pairs,” <i>Physical Review Research</i>, vol. 6, no. 1, Art. no. L012017, 2024, doi: <a href=\"https://doi.org/10.1103/physrevresearch.6.l012017\">10.1103/physrevresearch.6.l012017</a>.","ama":"Heinisch N, Köcher N, Bauch D, Schumacher S. Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons and entangled photon pairs. <i>Physical Review Research</i>. 2024;6(1). doi:<a href=\"https://doi.org/10.1103/physrevresearch.6.l012017\">10.1103/physrevresearch.6.l012017</a>","bibtex":"@article{Heinisch_Köcher_Bauch_Schumacher_2024, title={Swing-up dynamics in quantum emitter cavity systems: Near ideal single photons and entangled photon pairs}, volume={6}, DOI={<a href=\"https://doi.org/10.1103/physrevresearch.6.l012017\">10.1103/physrevresearch.6.l012017</a>}, number={1L012017}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={Heinisch, Nils and Köcher, Nikolas and Bauch, David and Schumacher, Stefan}, year={2024} }","mla":"Heinisch, Nils, et al. “Swing-up Dynamics in Quantum Emitter Cavity Systems: Near Ideal Single Photons and Entangled Photon Pairs.” <i>Physical Review Research</i>, vol. 6, no. 1, L012017, American Physical Society (APS), 2024, doi:<a href=\"https://doi.org/10.1103/physrevresearch.6.l012017\">10.1103/physrevresearch.6.l012017</a>."}},{"language":[{"iso":"eng"}],"doi":"10.1515/nanoph-2023-0556","publication_identifier":{"issn":["2192-8614"]},"author":[{"last_name":"Schneider","first_name":"Tobias","full_name":"Schneider, Tobias"},{"last_name":"Gao","first_name":"Wenlong","full_name":"Gao, Wenlong","id":"78853"},{"full_name":"Zentgraf, Thomas","orcid":"0000-0002-8662-1101","last_name":"Zentgraf","first_name":"Thomas","id":"30525"},{"id":"27271","full_name":"Schumacher, Stefan","first_name":"Stefan","last_name":"Schumacher","orcid":"0000-0003-4042-4951"},{"id":"59416","full_name":"Ma, Xuekai","first_name":"Xuekai","last_name":"Ma"}],"title":"Topological edge and corner states in coupled wave lattices in nonlinear polariton condensates","year":"2024","intvolume":"        13","date_updated":"2025-09-12T11:22:41Z","publication_status":"published","date_created":"2025-09-12T11:19:22Z","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"705"},{"_id":"35"},{"_id":"230"},{"_id":"429"},{"_id":"27"}],"type":"journal_article","publication":"Nanophotonics","issue":"4","abstract":[{"text":"<jats:title>Abstract</jats:title>\r\n               <jats:p>Topological states have been widely investigated in different types of systems and lattices. In the present work, we report on topological edge states in double-wave (DW) chains, which can be described by a generalized Aubry-André-Harper (AAH) model. For the specific system of a driven-dissipative exciton polariton system we show that in such potential chains, different types of edge states can form. For resonant optical excitation, we further find that the optical nonlinearity leads to a multistability of different edge states. This includes topologically protected edge states evolved directly from individual linear eigenstates as well as additional edge states that originate from nonlinearity-induced localization of bulk states. Extending the system into two dimensions (2D) by stacking horizontal DW chains in the vertical direction, we also create 2D multi-wave lattices. In such 2D lattices multiple Su–Schrieffer–Heeger (SSH) chains appear along the vertical direction. The combination of DW chains in the horizonal and SSH chains in the vertical direction then results in the formation of higher-order topological insulator corner states. Multistable corner states emerge in the nonlinear regime.</jats:p>","lang":"eng"}],"publisher":"Walter de Gruyter GmbH","_id":"61255","page":"509-518","volume":13,"user_id":"16199","status":"public","citation":{"ama":"Schneider T, Gao W, Zentgraf T, Schumacher S, Ma X. Topological edge and corner states in coupled wave lattices in nonlinear polariton condensates. <i>Nanophotonics</i>. 2024;13(4):509-518. doi:<a href=\"https://doi.org/10.1515/nanoph-2023-0556\">10.1515/nanoph-2023-0556</a>","bibtex":"@article{Schneider_Gao_Zentgraf_Schumacher_Ma_2024, title={Topological edge and corner states in coupled wave lattices in nonlinear polariton condensates}, volume={13}, DOI={<a href=\"https://doi.org/10.1515/nanoph-2023-0556\">10.1515/nanoph-2023-0556</a>}, number={4}, journal={Nanophotonics}, publisher={Walter de Gruyter GmbH}, author={Schneider, Tobias and Gao, Wenlong and Zentgraf, Thomas and Schumacher, Stefan and Ma, Xuekai}, year={2024}, pages={509–518} }","mla":"Schneider, Tobias, et al. “Topological Edge and Corner States in Coupled Wave Lattices in Nonlinear Polariton Condensates.” <i>Nanophotonics</i>, vol. 13, no. 4, Walter de Gruyter GmbH, 2024, pp. 509–18, doi:<a href=\"https://doi.org/10.1515/nanoph-2023-0556\">10.1515/nanoph-2023-0556</a>.","short":"T. Schneider, W. Gao, T. Zentgraf, S. Schumacher, X. Ma, Nanophotonics 13 (2024) 509–518.","chicago":"Schneider, Tobias, Wenlong Gao, Thomas Zentgraf, Stefan Schumacher, and Xuekai Ma. “Topological Edge and Corner States in Coupled Wave Lattices in Nonlinear Polariton Condensates.” <i>Nanophotonics</i> 13, no. 4 (2024): 509–18. <a href=\"https://doi.org/10.1515/nanoph-2023-0556\">https://doi.org/10.1515/nanoph-2023-0556</a>.","apa":"Schneider, T., Gao, W., Zentgraf, T., Schumacher, S., &#38; Ma, X. (2024). Topological edge and corner states in coupled wave lattices in nonlinear polariton condensates. <i>Nanophotonics</i>, <i>13</i>(4), 509–518. <a href=\"https://doi.org/10.1515/nanoph-2023-0556\">https://doi.org/10.1515/nanoph-2023-0556</a>","ieee":"T. Schneider, W. Gao, T. Zentgraf, S. Schumacher, and X. Ma, “Topological edge and corner states in coupled wave lattices in nonlinear polariton condensates,” <i>Nanophotonics</i>, vol. 13, no. 4, pp. 509–518, 2024, doi: <a href=\"https://doi.org/10.1515/nanoph-2023-0556\">10.1515/nanoph-2023-0556</a>."},"project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"_id":"53","name":"TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen"},{"name":"TRR 142 - Project Area A","_id":"54"},{"_id":"55","name":"TRR 142 - Project Area B"},{"name":"TRR 142; TP A04: Nichtlineare Quantenprozesstomographie und Photonik mit Polaritonen in Mikrokavitäten","_id":"61"},{"name":"TRR 142; TP B09: Effiziente Erzeugung mit maßgeschneiderter optischer Phaselage der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen","_id":"170"}]},{"status":"public","_id":"61257","publisher":"American Physical Society (APS)","user_id":"16199","volume":6,"citation":{"short":"J. Wingenbach, S. Schumacher, X. Ma, Physical Review Research 6 (2024).","chicago":"Wingenbach, Jan, Stefan Schumacher, and Xuekai Ma. “Manipulating Spectral Topology and Exceptional Points by Nonlinearity in Non-Hermitian Polariton Systems.” <i>Physical Review Research</i> 6, no. 1 (2024). <a href=\"https://doi.org/10.1103/physrevresearch.6.013148\">https://doi.org/10.1103/physrevresearch.6.013148</a>.","apa":"Wingenbach, J., Schumacher, S., &#38; Ma, X. (2024). Manipulating spectral topology and exceptional points by nonlinearity in non-Hermitian polariton systems. <i>Physical Review Research</i>, <i>6</i>(1), Article 013148. <a href=\"https://doi.org/10.1103/physrevresearch.6.013148\">https://doi.org/10.1103/physrevresearch.6.013148</a>","ieee":"J. Wingenbach, S. Schumacher, and X. Ma, “Manipulating spectral topology and exceptional points by nonlinearity in non-Hermitian polariton systems,” <i>Physical Review Research</i>, vol. 6, no. 1, Art. no. 013148, 2024, doi: <a href=\"https://doi.org/10.1103/physrevresearch.6.013148\">10.1103/physrevresearch.6.013148</a>.","ama":"Wingenbach J, Schumacher S, Ma X. Manipulating spectral topology and exceptional points by nonlinearity in non-Hermitian polariton systems. <i>Physical Review Research</i>. 2024;6(1). doi:<a href=\"https://doi.org/10.1103/physrevresearch.6.013148\">10.1103/physrevresearch.6.013148</a>","bibtex":"@article{Wingenbach_Schumacher_Ma_2024, title={Manipulating spectral topology and exceptional points by nonlinearity in non-Hermitian polariton systems}, volume={6}, DOI={<a href=\"https://doi.org/10.1103/physrevresearch.6.013148\">10.1103/physrevresearch.6.013148</a>}, number={1013148}, journal={Physical Review Research}, publisher={American Physical Society (APS)}, author={Wingenbach, Jan and Schumacher, Stefan and Ma, Xuekai}, year={2024} }","mla":"Wingenbach, Jan, et al. “Manipulating Spectral Topology and Exceptional Points by Nonlinearity in Non-Hermitian Polariton Systems.” <i>Physical Review Research</i>, vol. 6, no. 1, 013148, American Physical Society (APS), 2024, doi:<a href=\"https://doi.org/10.1103/physrevresearch.6.013148\">10.1103/physrevresearch.6.013148</a>."},"project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"},{"_id":"53","name":"TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen"},{"_id":"54","name":"TRR 142 - Project Area A"},{"_id":"61","name":"TRR 142; TP A04: Nichtlineare Quantenprozesstomographie und Photonik mit Polaritonen in Mikrokavitäten"}],"title":"Manipulating spectral topology and exceptional points by nonlinearity in non-Hermitian polariton systems","year":"2024","publication_identifier":{"issn":["2643-1564"]},"author":[{"full_name":"Wingenbach, Jan","last_name":"Wingenbach","first_name":"Jan","id":"69187"},{"id":"27271","orcid":"0000-0003-4042-4951","first_name":"Stefan","last_name":"Schumacher","full_name":"Schumacher, Stefan"},{"id":"59416","full_name":"Ma, Xuekai","last_name":"Ma","first_name":"Xuekai"}],"date_updated":"2025-09-12T11:24:59Z","publication_status":"published","intvolume":"         6","article_number":"013148","language":[{"iso":"eng"}],"doi":"10.1103/physrevresearch.6.013148","issue":"1","publication":"Physical Review Research","abstract":[{"text":"<jats:p>Exceptional points (EPs), with their intriguing spectral topology, have attracted considerable attention in a broad range of physical systems, with potential sensing applications driving much of the present research in this field. Here, we investigate spectral topology and EPs in systems with significant nonlinearity, exemplified by a nonequilibrium exciton-polariton condensate. With the possibility to control loss and gain and nonlinearity by optical means, this system allows for a comprehensive analysis of the interplay of nonlinearities (Kerr type and saturable gain) and non-Hermiticity. Not only do we find that EPs can be intentionally shifted in parameter space by the saturable gain, but we also observe intriguing rotations and intersections of Riemann surfaces and find nonlinearity-enhanced sensing capabilities. With this, our results illustrate the potential of tailoring spectral topology and related phenomena in non-Hermitian systems by nonlinearity.</jats:p>\r\n          <jats:sec>\r\n            <jats:title/>\r\n            <jats:supplementary-material>\r\n              <jats:permissions>\r\n                <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement>\r\n                <jats:copyright-year>2024</jats:copyright-year>\r\n              </jats:permissions>\r\n            </jats:supplementary-material>\r\n          </jats:sec>","lang":"eng"}],"date_created":"2025-09-12T11:23:33Z","type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"705"},{"_id":"35"},{"_id":"230"},{"_id":"27"},{"_id":"429"}]},{"abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title><jats:p>Thermal stability is crucial for doped organic semiconductors (OSCs) and their applications in organic thermoelectric (OTE) devices. However, the capacity of n‐dopants to produce thermally stable n‐doped OSC films has not been thoroughly explored, with few reports of high thermal stability. Here, a novel n‐dopant, phosphazenium tetrafluoroborate (P<jats:sub>2</jats:sub>BF<jats:sub>4</jats:sub>) is introduced, which effectively induces n‐doping in N2200, P(PzDPP‐CT2) and several other commonly used OSCs. Remarkably, the electrical conductivity of P<jats:sub>2</jats:sub>BF<jats:sub>4</jats:sub>‐doped OSC films remains almost unchanged even after heating at temperatures &gt; 150 °C for 24 h, far superior to the films doped with benchmark N‐DMBI. The exceptional thermal stability observed in P<jats:sub>2</jats:sub>BF<jats:sub>4</jats:sub>‐doped P(PzDPP‐CT2) films allows for stable operation of the corresponding organic thermoelectric devices at 150 °C for 16 h, a milestone not previously achieved. This study offers valuable insights into the development of n‐dopants capable of producing OSCs with outstanding thermal stability, paving the way for the practical realization of OTE devices with enhanced operation stability.</jats:p>"}],"citation":{"short":"H. Wei, J. Guo, H. Liu, T. Wu, P. Chen, C. Dong, S. Wang, S. Schumacher, Y. Bai, T. Lei, S. Wang, Y. Hu, Advanced Electronic Materials (2024).","chicago":"Wei, Huan, Jing Guo, Heng Liu, Tong Wu, Ping‐An Chen, Chuanding Dong, Shu‐Jen Wang, et al. “Novel Phosphazenium Tetrafluoroborate Dopant Enables Efficient and Thermally Stable N‐Doped Organic Semiconductors.” <i>Advanced Electronic Materials</i>, 2024. <a href=\"https://doi.org/10.1002/aelm.202400767\">https://doi.org/10.1002/aelm.202400767</a>.","ieee":"H. Wei <i>et al.</i>, “Novel Phosphazenium Tetrafluoroborate Dopant Enables Efficient and Thermally Stable n‐Doped Organic Semiconductors,” <i>Advanced Electronic Materials</i>, Art. no. 2400767, 2024, doi: <a href=\"https://doi.org/10.1002/aelm.202400767\">10.1002/aelm.202400767</a>.","apa":"Wei, H., Guo, J., Liu, H., Wu, T., Chen, P., Dong, C., Wang, S., Schumacher, S., Bai, Y., Lei, T., Wang, S., &#38; Hu, Y. (2024). Novel Phosphazenium Tetrafluoroborate Dopant Enables Efficient and Thermally Stable n‐Doped Organic Semiconductors. <i>Advanced Electronic Materials</i>, Article 2400767. <a href=\"https://doi.org/10.1002/aelm.202400767\">https://doi.org/10.1002/aelm.202400767</a>","bibtex":"@article{Wei_Guo_Liu_Wu_Chen_Dong_Wang_Schumacher_Bai_Lei_et al._2024, title={Novel Phosphazenium Tetrafluoroborate Dopant Enables Efficient and Thermally Stable n‐Doped Organic Semiconductors}, DOI={<a href=\"https://doi.org/10.1002/aelm.202400767\">10.1002/aelm.202400767</a>}, number={2400767}, journal={Advanced Electronic Materials}, publisher={Wiley}, author={Wei, Huan and Guo, Jing and Liu, Heng and Wu, Tong and Chen, Ping‐An and Dong, Chuanding and Wang, Shu‐Jen and Schumacher, Stefan and Bai, Yugang and Lei, Ting and et al.}, year={2024} }","ama":"Wei H, Guo J, Liu H, et al. Novel Phosphazenium Tetrafluoroborate Dopant Enables Efficient and Thermally Stable n‐Doped Organic Semiconductors. <i>Advanced Electronic Materials</i>. Published online 2024. doi:<a href=\"https://doi.org/10.1002/aelm.202400767\">10.1002/aelm.202400767</a>","mla":"Wei, Huan, et al. “Novel Phosphazenium Tetrafluoroborate Dopant Enables Efficient and Thermally Stable N‐Doped Organic Semiconductors.” <i>Advanced Electronic Materials</i>, 2400767, Wiley, 2024, doi:<a href=\"https://doi.org/10.1002/aelm.202400767\">10.1002/aelm.202400767</a>."},"publication":"Advanced Electronic Materials","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"35"},{"_id":"230"}],"type":"journal_article","date_created":"2025-09-12T11:25:26Z","publication_status":"published","date_updated":"2025-09-12T11:26:26Z","publication_identifier":{"issn":["2199-160X","2199-160X"]},"author":[{"full_name":"Wei, Huan","last_name":"Wei","first_name":"Huan"},{"first_name":"Jing","last_name":"Guo","full_name":"Guo, Jing"},{"first_name":"Heng","last_name":"Liu","full_name":"Liu, Heng"},{"first_name":"Tong","last_name":"Wu","full_name":"Wu, Tong"},{"last_name":"Chen","first_name":"Ping‐An","full_name":"Chen, Ping‐An"},{"full_name":"Dong, Chuanding","last_name":"Dong","first_name":"Chuanding"},{"full_name":"Wang, Shu‐Jen","last_name":"Wang","first_name":"Shu‐Jen"},{"id":"27271","last_name":"Schumacher","orcid":"0000-0003-4042-4951","first_name":"Stefan","full_name":"Schumacher, Stefan"},{"last_name":"Bai","first_name":"Yugang","full_name":"Bai, Yugang"},{"full_name":"Lei, Ting","first_name":"Ting","last_name":"Lei"},{"first_name":"Suhao","last_name":"Wang","full_name":"Wang, Suhao"},{"first_name":"Yuanyuan","last_name":"Hu","full_name":"Hu, Yuanyuan"}],"status":"public","title":"Novel Phosphazenium Tetrafluoroborate Dopant Enables Efficient and Thermally Stable n‐Doped Organic Semiconductors","year":"2024","user_id":"16199","doi":"10.1002/aelm.202400767","publisher":"Wiley","_id":"61258","language":[{"iso":"eng"}],"article_number":"2400767"},{"date_created":"2025-09-12T11:26:49Z","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"35"},{"_id":"230"},{"_id":"27"}],"type":"journal_article","publication":"The Journal of Physical Chemistry C","issue":"8","language":[{"iso":"eng"}],"doi":"10.1021/acs.jpcc.3c07513","author":[{"full_name":"Bauch, Fabian","first_name":"Fabian","last_name":"Bauch"},{"first_name":"Chuan-Ding","last_name":"Dong","full_name":"Dong, Chuan-Ding"},{"id":"27271","first_name":"Stefan","last_name":"Schumacher","orcid":"0000-0003-4042-4951","full_name":"Schumacher, Stefan"}],"publication_identifier":{"issn":["1932-7447","1932-7455"]},"year":"2024","title":"Dynamics of Electron–Hole Coulomb Attractive Energy and Dipole Moment of Hot Excitons in Donor–Acceptor Polymers","intvolume":"       128","publication_status":"published","date_updated":"2025-09-12T11:27:57Z","citation":{"chicago":"Bauch, Fabian, Chuan-Ding Dong, and Stefan Schumacher. “Dynamics of Electron–Hole Coulomb Attractive Energy and Dipole Moment of Hot Excitons in Donor–Acceptor Polymers.” <i>The Journal of Physical Chemistry C</i> 128, no. 8 (2024): 3525–32. <a href=\"https://doi.org/10.1021/acs.jpcc.3c07513\">https://doi.org/10.1021/acs.jpcc.3c07513</a>.","short":"F. Bauch, C.-D. Dong, S. Schumacher, The Journal of Physical Chemistry C 128 (2024) 3525–3532.","apa":"Bauch, F., Dong, C.-D., &#38; Schumacher, S. (2024). Dynamics of Electron–Hole Coulomb Attractive Energy and Dipole Moment of Hot Excitons in Donor–Acceptor Polymers. <i>The Journal of Physical Chemistry C</i>, <i>128</i>(8), 3525–3532. <a href=\"https://doi.org/10.1021/acs.jpcc.3c07513\">https://doi.org/10.1021/acs.jpcc.3c07513</a>","ieee":"F. Bauch, C.-D. Dong, and S. Schumacher, “Dynamics of Electron–Hole Coulomb Attractive Energy and Dipole Moment of Hot Excitons in Donor–Acceptor Polymers,” <i>The Journal of Physical Chemistry C</i>, vol. 128, no. 8, pp. 3525–3532, 2024, doi: <a href=\"https://doi.org/10.1021/acs.jpcc.3c07513\">10.1021/acs.jpcc.3c07513</a>.","ama":"Bauch F, Dong C-D, Schumacher S. Dynamics of Electron–Hole Coulomb Attractive Energy and Dipole Moment of Hot Excitons in Donor–Acceptor Polymers. <i>The Journal of Physical Chemistry C</i>. 2024;128(8):3525-3532. doi:<a href=\"https://doi.org/10.1021/acs.jpcc.3c07513\">10.1021/acs.jpcc.3c07513</a>","bibtex":"@article{Bauch_Dong_Schumacher_2024, title={Dynamics of Electron–Hole Coulomb Attractive Energy and Dipole Moment of Hot Excitons in Donor–Acceptor Polymers}, volume={128}, DOI={<a href=\"https://doi.org/10.1021/acs.jpcc.3c07513\">10.1021/acs.jpcc.3c07513</a>}, number={8}, journal={The Journal of Physical Chemistry C}, publisher={American Chemical Society (ACS)}, author={Bauch, Fabian and Dong, Chuan-Ding and Schumacher, Stefan}, year={2024}, pages={3525–3532} }","mla":"Bauch, Fabian, et al. “Dynamics of Electron–Hole Coulomb Attractive Energy and Dipole Moment of Hot Excitons in Donor–Acceptor Polymers.” <i>The Journal of Physical Chemistry C</i>, vol. 128, no. 8, American Chemical Society (ACS), 2024, pp. 3525–32, doi:<a href=\"https://doi.org/10.1021/acs.jpcc.3c07513\">10.1021/acs.jpcc.3c07513</a>."},"project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"_id":"61259","publisher":"American Chemical Society (ACS)","page":"3525-3532","volume":128,"user_id":"16199","status":"public"},{"doi":"10.1039/d3cp05105f","language":[{"iso":"eng"}],"date_updated":"2025-09-12T11:30:40Z","publication_status":"published","intvolume":"        26","year":"2024","title":"Charge transfer in superbase n-type doping of PCBM induced by deprotonation","publication_identifier":{"issn":["1463-9076","1463-9084"]},"author":[{"last_name":"Dong","first_name":"Chuan-Ding","full_name":"Dong, Chuan-Ding"},{"last_name":"Bauch","orcid":"0009-0008-6279-077X","first_name":"Fabian","full_name":"Bauch, Fabian","id":"61389"},{"last_name":"Hu","first_name":"Yuanyuan","full_name":"Hu, Yuanyuan"},{"id":"27271","last_name":"Schumacher","orcid":"0000-0003-4042-4951","first_name":"Stefan","full_name":"Schumacher, Stefan"}],"type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"230"},{"_id":"27"}],"date_created":"2025-09-12T11:29:33Z","abstract":[{"lang":"eng","text":"<jats:p>Charge transfer mechanism in the deprotonation-induced n-type doping of PCBM.</jats:p>"}],"issue":"5","publication":"Physical Chemistry Chemical Physics","user_id":"16199","volume":26,"page":"4194-4199","_id":"61263","publisher":"Royal Society of Chemistry (RSC)","status":"public","project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"citation":{"mla":"Dong, Chuan-Ding, et al. “Charge Transfer in Superbase N-Type Doping of PCBM Induced by Deprotonation.” <i>Physical Chemistry Chemical Physics</i>, vol. 26, no. 5, Royal Society of Chemistry (RSC), 2024, pp. 4194–99, doi:<a href=\"https://doi.org/10.1039/d3cp05105f\">10.1039/d3cp05105f</a>.","bibtex":"@article{Dong_Bauch_Hu_Schumacher_2024, title={Charge transfer in superbase n-type doping of PCBM induced by deprotonation}, volume={26}, DOI={<a href=\"https://doi.org/10.1039/d3cp05105f\">10.1039/d3cp05105f</a>}, number={5}, journal={Physical Chemistry Chemical Physics}, publisher={Royal Society of Chemistry (RSC)}, author={Dong, Chuan-Ding and Bauch, Fabian and Hu, Yuanyuan and Schumacher, Stefan}, year={2024}, pages={4194–4199} }","ama":"Dong C-D, Bauch F, Hu Y, Schumacher S. Charge transfer in superbase n-type doping of PCBM induced by deprotonation. <i>Physical Chemistry Chemical Physics</i>. 2024;26(5):4194-4199. doi:<a href=\"https://doi.org/10.1039/d3cp05105f\">10.1039/d3cp05105f</a>","ieee":"C.-D. Dong, F. Bauch, Y. Hu, and S. Schumacher, “Charge transfer in superbase n-type doping of PCBM induced by deprotonation,” <i>Physical Chemistry Chemical Physics</i>, vol. 26, no. 5, pp. 4194–4199, 2024, doi: <a href=\"https://doi.org/10.1039/d3cp05105f\">10.1039/d3cp05105f</a>.","apa":"Dong, C.-D., Bauch, F., Hu, Y., &#38; Schumacher, S. (2024). Charge transfer in superbase n-type doping of PCBM induced by deprotonation. <i>Physical Chemistry Chemical Physics</i>, <i>26</i>(5), 4194–4199. <a href=\"https://doi.org/10.1039/d3cp05105f\">https://doi.org/10.1039/d3cp05105f</a>","chicago":"Dong, Chuan-Ding, Fabian Bauch, Yuanyuan Hu, and Stefan Schumacher. “Charge Transfer in Superbase N-Type Doping of PCBM Induced by Deprotonation.” <i>Physical Chemistry Chemical Physics</i> 26, no. 5 (2024): 4194–99. <a href=\"https://doi.org/10.1039/d3cp05105f\">https://doi.org/10.1039/d3cp05105f</a>.","short":"C.-D. Dong, F. Bauch, Y. Hu, S. Schumacher, Physical Chemistry Chemical Physics 26 (2024) 4194–4199."}},{"user_id":"16199","volume":146,"page":"4542-4548","_id":"61261","publisher":"American Chemical Society (ACS)","status":"public","citation":{"ieee":"Q. Liang <i>et al.</i>, “Photochemical Reaction Enabling the Engineering of Photonic Spin–Orbit Coupling in Organic-Crystal Optical Microcavities,” <i>Journal of the American Chemical Society</i>, vol. 146, no. 7, pp. 4542–4548, 2024, doi: <a href=\"https://doi.org/10.1021/jacs.3c11373\">10.1021/jacs.3c11373</a>.","apa":"Liang, Q., Ma, X., Gu, C., Ren, J., An, C., Fu, H., Schumacher, S., &#38; Liao, Q. (2024). Photochemical Reaction Enabling the Engineering of Photonic Spin–Orbit Coupling in Organic-Crystal Optical Microcavities. <i>Journal of the American Chemical Society</i>, <i>146</i>(7), 4542–4548. <a href=\"https://doi.org/10.1021/jacs.3c11373\">https://doi.org/10.1021/jacs.3c11373</a>","short":"Q. Liang, X. Ma, C. Gu, J. Ren, C. An, H. Fu, S. Schumacher, Q. Liao, Journal of the American Chemical Society 146 (2024) 4542–4548.","chicago":"Liang, Qian, Xuekai Ma, Chunling Gu, Jiahuan Ren, Cunbin An, Hongbing Fu, Stefan Schumacher, and Qing Liao. “Photochemical Reaction Enabling the Engineering of Photonic Spin–Orbit Coupling in Organic-Crystal Optical Microcavities.” <i>Journal of the American Chemical Society</i> 146, no. 7 (2024): 4542–48. <a href=\"https://doi.org/10.1021/jacs.3c11373\">https://doi.org/10.1021/jacs.3c11373</a>.","mla":"Liang, Qian, et al. “Photochemical Reaction Enabling the Engineering of Photonic Spin–Orbit Coupling in Organic-Crystal Optical Microcavities.” <i>Journal of the American Chemical Society</i>, vol. 146, no. 7, American Chemical Society (ACS), 2024, pp. 4542–48, doi:<a href=\"https://doi.org/10.1021/jacs.3c11373\">10.1021/jacs.3c11373</a>.","bibtex":"@article{Liang_Ma_Gu_Ren_An_Fu_Schumacher_Liao_2024, title={Photochemical Reaction Enabling the Engineering of Photonic Spin–Orbit Coupling in Organic-Crystal Optical Microcavities}, volume={146}, DOI={<a href=\"https://doi.org/10.1021/jacs.3c11373\">10.1021/jacs.3c11373</a>}, number={7}, journal={Journal of the American Chemical Society}, publisher={American Chemical Society (ACS)}, author={Liang, Qian and Ma, Xuekai and Gu, Chunling and Ren, Jiahuan and An, Cunbin and Fu, Hongbing and Schumacher, Stefan and Liao, Qing}, year={2024}, pages={4542–4548} }","ama":"Liang Q, Ma X, Gu C, et al. Photochemical Reaction Enabling the Engineering of Photonic Spin–Orbit Coupling in Organic-Crystal Optical Microcavities. <i>Journal of the American Chemical Society</i>. 2024;146(7):4542-4548. doi:<a href=\"https://doi.org/10.1021/jacs.3c11373\">10.1021/jacs.3c11373</a>"},"doi":"10.1021/jacs.3c11373","language":[{"iso":"eng"}],"date_updated":"2025-09-12T11:29:07Z","publication_status":"published","intvolume":"       146","year":"2024","title":"Photochemical Reaction Enabling the Engineering of Photonic Spin–Orbit Coupling in Organic-Crystal Optical Microcavities","author":[{"full_name":"Liang, Qian","first_name":"Qian","last_name":"Liang"},{"id":"59416","last_name":"Ma","first_name":"Xuekai","full_name":"Ma, Xuekai"},{"full_name":"Gu, Chunling","first_name":"Chunling","last_name":"Gu"},{"full_name":"Ren, Jiahuan","last_name":"Ren","first_name":"Jiahuan"},{"first_name":"Cunbin","last_name":"An","full_name":"An, Cunbin"},{"full_name":"Fu, Hongbing","last_name":"Fu","first_name":"Hongbing"},{"id":"27271","full_name":"Schumacher, Stefan","orcid":"0000-0003-4042-4951","last_name":"Schumacher","first_name":"Stefan"},{"first_name":"Qing","last_name":"Liao","full_name":"Liao, Qing"}],"publication_identifier":{"issn":["0002-7863","1520-5126"]},"type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"705"},{"_id":"35"},{"_id":"230"}],"date_created":"2025-09-12T11:28:17Z","publication":"Journal of the American Chemical Society","issue":"7"},{"publication":"The Journal of Physical Chemistry C","issue":"41","type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"790"},{"_id":"230"},{"_id":"429"},{"_id":"35"},{"_id":"27"}],"date_created":"2025-09-18T11:32:33Z","publication_status":"published","date_updated":"2025-09-18T11:34:21Z","intvolume":"       128","title":"Understanding and Improving Triplet Exciton Transfer in Sensitized Silicon Solar Cells","year":"2024","publication_identifier":{"issn":["1932-7447","1932-7455"]},"author":[{"full_name":"Krenz, Marvin","first_name":"Marvin","last_name":"Krenz"},{"last_name":"Sanna","first_name":"Simone","full_name":"Sanna, Simone"},{"id":"171","orcid":"0000-0002-4476-223X","last_name":"Gerstmann","first_name":"Uwe","full_name":"Gerstmann, Uwe"},{"full_name":"Schmidt, Wolf Gero","last_name":"Schmidt","first_name":"Wolf Gero","orcid":"0000-0002-2717-5076","id":"468"}],"doi":"10.1021/acs.jpcc.4c05446","language":[{"iso":"eng"}],"project":[{"_id":"53","name":"TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen"},{"_id":"54","name":"TRR 142 - Project Area A"},{"_id":"55","name":"TRR 142 - Project Area B"},{"name":"TRR 142 - Subproject A11","_id":"166"},{"name":"TRR 142 - Polaronen-Einfluss auf die optischen Eigenschaften von Lithiumniobat (B07*)","_id":"168"},{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"citation":{"apa":"Krenz, M., Sanna, S., Gerstmann, U., &#38; Schmidt, W. G. (2024). Understanding and Improving Triplet Exciton Transfer in Sensitized Silicon Solar Cells. <i>The Journal of Physical Chemistry C</i>, <i>128</i>(41), 17774–17778. <a href=\"https://doi.org/10.1021/acs.jpcc.4c05446\">https://doi.org/10.1021/acs.jpcc.4c05446</a>","mla":"Krenz, Marvin, et al. “Understanding and Improving Triplet Exciton Transfer in Sensitized Silicon Solar Cells.” <i>The Journal of Physical Chemistry C</i>, vol. 128, no. 41, American Chemical Society (ACS), 2024, pp. 17774–78, doi:<a href=\"https://doi.org/10.1021/acs.jpcc.4c05446\">10.1021/acs.jpcc.4c05446</a>.","ieee":"M. Krenz, S. Sanna, U. Gerstmann, and W. G. Schmidt, “Understanding and Improving Triplet Exciton Transfer in Sensitized Silicon Solar Cells,” <i>The Journal of Physical Chemistry C</i>, vol. 128, no. 41, pp. 17774–17778, 2024, doi: <a href=\"https://doi.org/10.1021/acs.jpcc.4c05446\">10.1021/acs.jpcc.4c05446</a>.","short":"M. Krenz, S. Sanna, U. Gerstmann, W.G. Schmidt, The Journal of Physical Chemistry C 128 (2024) 17774–17778.","ama":"Krenz M, Sanna S, Gerstmann U, Schmidt WG. Understanding and Improving Triplet Exciton Transfer in Sensitized Silicon Solar Cells. <i>The Journal of Physical Chemistry C</i>. 2024;128(41):17774-17778. doi:<a href=\"https://doi.org/10.1021/acs.jpcc.4c05446\">10.1021/acs.jpcc.4c05446</a>","chicago":"Krenz, Marvin, Simone Sanna, Uwe Gerstmann, and Wolf Gero Schmidt. “Understanding and Improving Triplet Exciton Transfer in Sensitized Silicon Solar Cells.” <i>The Journal of Physical Chemistry C</i> 128, no. 41 (2024): 17774–78. <a href=\"https://doi.org/10.1021/acs.jpcc.4c05446\">https://doi.org/10.1021/acs.jpcc.4c05446</a>.","bibtex":"@article{Krenz_Sanna_Gerstmann_Schmidt_2024, title={Understanding and Improving Triplet Exciton Transfer in Sensitized Silicon Solar Cells}, volume={128}, DOI={<a href=\"https://doi.org/10.1021/acs.jpcc.4c05446\">10.1021/acs.jpcc.4c05446</a>}, number={41}, journal={The Journal of Physical Chemistry C}, publisher={American Chemical Society (ACS)}, author={Krenz, Marvin and Sanna, Simone and Gerstmann, Uwe and Schmidt, Wolf Gero}, year={2024}, pages={17774–17778} }"},"status":"public","user_id":"16199","volume":128,"page":"17774-17778","_id":"61357","publisher":"American Chemical Society (ACS)"},{"date_created":"2025-12-05T09:42:23Z","department":[{"_id":"15"},{"_id":"170"},{"_id":"293"},{"_id":"230"},{"_id":"35"},{"_id":"429"},{"_id":"27"}],"type":"book_chapter","citation":{"mla":"Zhang, Hongdan, et al. “Analyzing High-Order Harmonic Generation in Solids Based on Semi-Classical Recollision Models.” <i>High-Order Harmonic Generation in Solids</i>, WORLD SCIENTIFIC, 2024, doi:<a href=\"https://doi.org/10.1142/9789811279560_0006\">10.1142/9789811279560_0006</a>.","bibtex":"@inbook{Zhang_Zuo_Yang_Trautmann_Song_Meier_Yang_2024, title={Analyzing High-Order Harmonic Generation in Solids Based on Semi-Classical Recollision Models}, DOI={<a href=\"https://doi.org/10.1142/9789811279560_0006\">10.1142/9789811279560_0006</a>}, booktitle={High-Order Harmonic Generation in Solids}, publisher={WORLD SCIENTIFIC}, author={Zhang, Hongdan and Zuo, Ruixin and Yang, Shidong and Trautmann, Alexander and Song, Xiaohong and Meier, Torsten and Yang, Weifeng}, year={2024} }","ama":"Zhang H, Zuo R, Yang S, et al. Analyzing High-Order Harmonic Generation in Solids Based on Semi-Classical Recollision Models. In: <i>High-Order Harmonic Generation in Solids</i>. WORLD SCIENTIFIC; 2024. doi:<a href=\"https://doi.org/10.1142/9789811279560_0006\">10.1142/9789811279560_0006</a>","ieee":"H. Zhang <i>et al.</i>, “Analyzing High-Order Harmonic Generation in Solids Based on Semi-Classical Recollision Models,” in <i>High-Order Harmonic Generation in Solids</i>, WORLD SCIENTIFIC, 2024.","apa":"Zhang, H., Zuo, R., Yang, S., Trautmann, A., Song, X., Meier, T., &#38; Yang, W. (2024). Analyzing High-Order Harmonic Generation in Solids Based on Semi-Classical Recollision Models. In <i>High-Order Harmonic Generation in Solids</i>. WORLD SCIENTIFIC. <a href=\"https://doi.org/10.1142/9789811279560_0006\">https://doi.org/10.1142/9789811279560_0006</a>","short":"H. Zhang, R. Zuo, S. Yang, A. Trautmann, X. Song, T. Meier, W. Yang, in: High-Order Harmonic Generation in Solids, WORLD SCIENTIFIC, 2024.","chicago":"Zhang, Hongdan, Ruixin Zuo, Shidong Yang, Alexander Trautmann, Xiaohong Song, Torsten Meier, and Weifeng Yang. “Analyzing High-Order Harmonic Generation in Solids Based on Semi-Classical Recollision Models.” In <i>High-Order Harmonic Generation in Solids</i>. WORLD SCIENTIFIC, 2024. <a href=\"https://doi.org/10.1142/9789811279560_0006\">https://doi.org/10.1142/9789811279560_0006</a>."},"publication":"High-Order Harmonic Generation in Solids","project":[{"_id":"53","name":"TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen"},{"_id":"56","name":"TRR 142 - Project Area C"},{"name":"TRR 142 ; TP: C10: Erzeugung und Charakterisierung von Quantenlicht in nichtlinearen Systemen: Eine theoretische Analyse","_id":"174"},{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"_id":"62916","language":[{"iso":"eng"}],"publisher":"WORLD SCIENTIFIC","user_id":"16199","doi":"10.1142/9789811279560_0006","publication_identifier":{"isbn":["9789811279553","9789811279560"]},"author":[{"last_name":"Zhang","first_name":"Hongdan","full_name":"Zhang, Hongdan"},{"first_name":"Ruixin","last_name":"Zuo","full_name":"Zuo, Ruixin"},{"full_name":"Yang, Shidong","first_name":"Shidong","last_name":"Yang"},{"full_name":"Trautmann, Alexander","first_name":"Alexander","last_name":"Trautmann"},{"first_name":"Xiaohong","last_name":"Song","full_name":"Song, Xiaohong"},{"id":"344","full_name":"Meier, Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier","first_name":"Torsten"},{"last_name":"Yang","first_name":"Weifeng","full_name":"Yang, Weifeng"}],"status":"public","year":"2024","title":"Analyzing High-Order Harmonic Generation in Solids Based on Semi-Classical Recollision Models","publication_status":"published","date_updated":"2025-12-05T09:43:37Z"},{"type":"book_chapter","department":[{"_id":"15"},{"_id":"170"},{"_id":"293"},{"_id":"35"},{"_id":"230"},{"_id":"429"},{"_id":"27"}],"date_created":"2025-12-05T09:44:20Z","project":[{"_id":"53","name":"TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen"},{"_id":"56","name":"TRR 142 - Project Area C"},{"_id":"174","name":"TRR 142 ; TP: C10: Erzeugung und Charakterisierung von Quantenlicht in nichtlinearen Systemen: Eine theoretische Analyse"},{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"publication":"High-Order Harmonic Generation in Solids","citation":{"chicago":"Reichelt, Matthias, Ruixin Zuo, Xiaohong Song, Weifeng Yang, and Torsten Meier. “High-Order Harmonic Generation in Semiconductors with Excitonic Effects.” In <i>High-Order Harmonic Generation in Solids</i>. WORLD SCIENTIFIC, 2024. <a href=\"https://doi.org/10.1142/9789811279560_0009\">https://doi.org/10.1142/9789811279560_0009</a>.","short":"M. Reichelt, R. Zuo, X. Song, W. Yang, T. Meier, in: High-Order Harmonic Generation in Solids, WORLD SCIENTIFIC, 2024.","ieee":"M. Reichelt, R. Zuo, X. Song, W. Yang, and T. Meier, “High-Order Harmonic Generation in Semiconductors with Excitonic Effects,” in <i>High-Order Harmonic Generation in Solids</i>, WORLD SCIENTIFIC, 2024.","apa":"Reichelt, M., Zuo, R., Song, X., Yang, W., &#38; Meier, T. (2024). High-Order Harmonic Generation in Semiconductors with Excitonic Effects. In <i>High-Order Harmonic Generation in Solids</i>. WORLD SCIENTIFIC. <a href=\"https://doi.org/10.1142/9789811279560_0009\">https://doi.org/10.1142/9789811279560_0009</a>","bibtex":"@inbook{Reichelt_Zuo_Song_Yang_Meier_2024, title={High-Order Harmonic Generation in Semiconductors with Excitonic Effects}, DOI={<a href=\"https://doi.org/10.1142/9789811279560_0009\">10.1142/9789811279560_0009</a>}, booktitle={High-Order Harmonic Generation in Solids}, publisher={WORLD SCIENTIFIC}, author={Reichelt, Matthias and Zuo, Ruixin and Song, Xiaohong and Yang, Weifeng and Meier, Torsten}, year={2024} }","ama":"Reichelt M, Zuo R, Song X, Yang W, Meier T. High-Order Harmonic Generation in Semiconductors with Excitonic Effects. In: <i>High-Order Harmonic Generation in Solids</i>. WORLD SCIENTIFIC; 2024. doi:<a href=\"https://doi.org/10.1142/9789811279560_0009\">10.1142/9789811279560_0009</a>","mla":"Reichelt, Matthias, et al. “High-Order Harmonic Generation in Semiconductors with Excitonic Effects.” <i>High-Order Harmonic Generation in Solids</i>, WORLD SCIENTIFIC, 2024, doi:<a href=\"https://doi.org/10.1142/9789811279560_0009\">10.1142/9789811279560_0009</a>."},"doi":"10.1142/9789811279560_0009","user_id":"16199","_id":"62917","language":[{"iso":"eng"}],"publisher":"WORLD SCIENTIFIC","date_updated":"2025-12-05T09:45:31Z","publication_status":"published","year":"2024","title":"High-Order Harmonic Generation in Semiconductors with Excitonic Effects","status":"public","publication_identifier":{"isbn":["9789811279553","9789811279560"]},"author":[{"id":"138","last_name":"Reichelt","first_name":"Matthias","full_name":"Reichelt, Matthias"},{"full_name":"Zuo, Ruixin","first_name":"Ruixin","last_name":"Zuo"},{"full_name":"Song, Xiaohong","first_name":"Xiaohong","last_name":"Song"},{"full_name":"Yang, Weifeng","first_name":"Weifeng","last_name":"Yang"},{"id":"344","full_name":"Meier, Torsten","first_name":"Torsten","last_name":"Meier","orcid":"0000-0001-8864-2072"}]},{"user_id":"16199","doi":"10.5281/ZENODO.11935146","publisher":"LibreCat University","_id":"62915","date_updated":"2025-12-05T09:42:11Z","author":[{"id":"344","full_name":"Meier, Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier","first_name":"Torsten"},{"full_name":"Ali, Usman","last_name":"Ali","first_name":"Usman"},{"full_name":"Holthaus, Martin","last_name":"Holthaus","first_name":"Martin"}],"status":"public","title":"Floquet dynamics of ultracold atoms in optical lattices with a parametrically modulated trapping potential","year":"2024","department":[{"_id":"15"},{"_id":"170"},{"_id":"293"},{"_id":"230"},{"_id":"35"},{"_id":"27"}],"type":"research_data","date_created":"2025-12-05T09:41:14Z","project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"citation":{"bibtex":"@book{Meier_Ali_Holthaus_2024, title={Floquet dynamics of ultracold atoms in optical lattices with a parametrically modulated trapping potential}, DOI={<a href=\"https://doi.org/10.5281/ZENODO.11935146\">10.5281/ZENODO.11935146</a>}, publisher={LibreCat University}, author={Meier, Torsten and Ali, Usman and Holthaus, Martin}, year={2024} }","chicago":"Meier, Torsten, Usman Ali, and Martin Holthaus. <i>Floquet Dynamics of Ultracold Atoms in Optical Lattices with a Parametrically Modulated Trapping Potential</i>. LibreCat University, 2024. <a href=\"https://doi.org/10.5281/ZENODO.11935146\">https://doi.org/10.5281/ZENODO.11935146</a>.","ama":"Meier T, Ali U, Holthaus M. <i>Floquet Dynamics of Ultracold Atoms in Optical Lattices with a Parametrically Modulated Trapping Potential</i>. LibreCat University; 2024. doi:<a href=\"https://doi.org/10.5281/ZENODO.11935146\">10.5281/ZENODO.11935146</a>","short":"T. Meier, U. Ali, M. Holthaus, Floquet Dynamics of Ultracold Atoms in Optical Lattices with a Parametrically Modulated Trapping Potential, LibreCat University, 2024.","ieee":"T. Meier, U. Ali, and M. Holthaus, <i>Floquet dynamics of ultracold atoms in optical lattices with a parametrically modulated trapping potential</i>. LibreCat University, 2024.","mla":"Meier, Torsten, et al. <i>Floquet Dynamics of Ultracold Atoms in Optical Lattices with a Parametrically Modulated Trapping Potential</i>. LibreCat University, 2024, doi:<a href=\"https://doi.org/10.5281/ZENODO.11935146\">10.5281/ZENODO.11935146</a>.","apa":"Meier, T., Ali, U., &#38; Holthaus, M. (2024). <i>Floquet dynamics of ultracold atoms in optical lattices with a parametrically modulated trapping potential</i>. LibreCat University. <a href=\"https://doi.org/10.5281/ZENODO.11935146\">https://doi.org/10.5281/ZENODO.11935146</a>"}},{"status":"public","user_id":"16199","volume":34,"_id":"61359","publisher":"Wiley","citation":{"ieee":"J. Diederich <i>et al.</i>, “Ultrafast Electron Dynamics at the P‐rich Indium Phosphide/TiO<sub>2</sub> Interface,” <i>Advanced Functional Materials</i>, vol. 34, no. 49, Art. no. 2409455, 2024, doi: <a href=\"https://doi.org/10.1002/adfm.202409455\">10.1002/adfm.202409455</a>.","apa":"Diederich, J., Rojas, J. V., Paszuk, A., Pour, M. A. Z., Höhn, C., Alvarado, I. A. R., Schwarzburg, K., Ostheimer, D., Eichberger, R., Schmidt, W. G., Hannappel, T., van de Krol, R., &#38; Friedrich, D. (2024). Ultrafast Electron Dynamics at the P‐rich Indium Phosphide/TiO<sub>2</sub> Interface. <i>Advanced Functional Materials</i>, <i>34</i>(49), Article 2409455. <a href=\"https://doi.org/10.1002/adfm.202409455\">https://doi.org/10.1002/adfm.202409455</a>","mla":"Diederich, Jonathan, et al. “Ultrafast Electron Dynamics at the P‐rich Indium Phosphide/TiO<sub>2</sub> Interface.” <i>Advanced Functional Materials</i>, vol. 34, no. 49, 2409455, Wiley, 2024, doi:<a href=\"https://doi.org/10.1002/adfm.202409455\">10.1002/adfm.202409455</a>.","bibtex":"@article{Diederich_Rojas_Paszuk_Pour_Höhn_Alvarado_Schwarzburg_Ostheimer_Eichberger_Schmidt_et al._2024, title={Ultrafast Electron Dynamics at the P‐rich Indium Phosphide/TiO<sub>2</sub> Interface}, volume={34}, DOI={<a href=\"https://doi.org/10.1002/adfm.202409455\">10.1002/adfm.202409455</a>}, number={492409455}, journal={Advanced Functional Materials}, publisher={Wiley}, author={Diederich, Jonathan and Rojas, Jennifer Velazquez and Paszuk, Agnieszka and Pour, Mohammad Amin Zare and Höhn, Christian and Alvarado, Isaac Azahel Ruiz and Schwarzburg, Klaus and Ostheimer, David and Eichberger, Rainer and Schmidt, Wolf Gero and et al.}, year={2024} }","short":"J. Diederich, J.V. Rojas, A. Paszuk, M.A.Z. Pour, C. Höhn, I.A.R. Alvarado, K. Schwarzburg, D. Ostheimer, R. Eichberger, W.G. Schmidt, T. Hannappel, R. van de Krol, D. Friedrich, Advanced Functional Materials 34 (2024).","ama":"Diederich J, Rojas JV, Paszuk A, et al. Ultrafast Electron Dynamics at the P‐rich Indium Phosphide/TiO<sub>2</sub> Interface. <i>Advanced Functional Materials</i>. 2024;34(49). doi:<a href=\"https://doi.org/10.1002/adfm.202409455\">10.1002/adfm.202409455</a>","chicago":"Diederich, Jonathan, Jennifer Velazquez Rojas, Agnieszka Paszuk, Mohammad Amin Zare Pour, Christian Höhn, Isaac Azahel Ruiz Alvarado, Klaus Schwarzburg, et al. “Ultrafast Electron Dynamics at the P‐rich Indium Phosphide/TiO<sub>2</sub> Interface.” <i>Advanced Functional Materials</i> 34, no. 49 (2024). <a href=\"https://doi.org/10.1002/adfm.202409455\">https://doi.org/10.1002/adfm.202409455</a>."},"publication_status":"published","date_updated":"2025-12-05T13:35:09Z","intvolume":"        34","year":"2024","title":"Ultrafast Electron Dynamics at the P‐rich Indium Phosphide/TiO<sub>2</sub> Interface","author":[{"first_name":"Jonathan","last_name":"Diederich","full_name":"Diederich, Jonathan"},{"full_name":"Rojas, Jennifer Velazquez","first_name":"Jennifer Velazquez","last_name":"Rojas"},{"first_name":"Agnieszka","last_name":"Paszuk","full_name":"Paszuk, Agnieszka"},{"last_name":"Pour","first_name":"Mohammad Amin Zare","full_name":"Pour, Mohammad Amin Zare"},{"last_name":"Höhn","first_name":"Christian","full_name":"Höhn, Christian"},{"first_name":"Isaac Azahel Ruiz","last_name":"Alvarado","full_name":"Alvarado, Isaac Azahel Ruiz"},{"last_name":"Schwarzburg","first_name":"Klaus","full_name":"Schwarzburg, Klaus"},{"last_name":"Ostheimer","first_name":"David","full_name":"Ostheimer, David"},{"last_name":"Eichberger","first_name":"Rainer","full_name":"Eichberger, Rainer"},{"full_name":"Schmidt, Wolf Gero","last_name":"Schmidt","orcid":"0000-0002-2717-5076","first_name":"Wolf Gero","id":"468"},{"first_name":"Thomas","last_name":"Hannappel","full_name":"Hannappel, Thomas"},{"full_name":"van de Krol, Roel","first_name":"Roel","last_name":"van de Krol"},{"first_name":"Dennis","last_name":"Friedrich","full_name":"Friedrich, Dennis"}],"publication_identifier":{"issn":["1616-301X","1616-3028"]},"doi":"10.1002/adfm.202409455","article_number":"2409455","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title><jats:p>The current efficiency records for generating green hydrogen via solar water splitting are held by indium phosphide (InP)‐based photo‐absorbers, protected by TiO<jats:sub>2</jats:sub> layers grown through atomic layer deposition (ALD). InP is also a leading material for photonic integrated circuits and computing, where ultrafast near‐surface behavior is key. A previous study described electronic pathways at the phosphorus‐rich (P‐rich) surface of p‐doped InP(100) using time‐resolved two‐photon photoemission (tr‐2PPE) spectroscopy. Here, the intricate electron pathways of the P‐rich InP surface modified with ALD‐deposited TiO<jats:sub>2</jats:sub> are explored. Photoexcited bulk InP electrons migrate through a bulk‐to‐surface transition cluster of states and surface states and inject into the TiO<jats:sub>2</jats:sub> conduction band (CB). Energy levels and occupation dynamics of CB states in P‐rich InP and TiO<jats:sub>2</jats:sub> adlayers are observed, with discrete states preserved up to 10 nm TiO<jats:sub>2</jats:sub> deposition. Thermalization lifetimes of excited electrons &gt; 0.8 eV above the InP conduction band minimum (CBM) are preserved for layer thicknesses up to 2.5 nm. Annealing at 300 °C to achieve crystalline TiO<jats:sub>2</jats:sub> reconstructions destroys interfacial states, affecting charge transfer. These observations enable innovative engineering of the P‐rich InP/TiO<jats:sub>2</jats:sub> heterointerface, opening new possibilities for studying hot‐carrier extraction, adsorbate effects, surface plasmons, and improving photovoltaic and PEC water‐splitting devices.</jats:p>"}],"publication":"Advanced Functional Materials","issue":"49","type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"35"},{"_id":"230"}],"date_created":"2025-09-18T11:37:51Z"},{"publication_status":"published","date_updated":"2025-12-05T13:35:44Z","intvolume":"        37","year":"2024","title":"Band alignment at InP/TiO<sub>2</sub> interfaces from density-functional theory","publication_identifier":{"issn":["0953-8984","1361-648X"]},"author":[{"id":"79462","last_name":"Ruiz Alvarado","orcid":"0000-0002-4710-1170","first_name":"Isaac Azahel","full_name":"Ruiz Alvarado, Isaac Azahel"},{"first_name":"Christian","last_name":"Dreßler","full_name":"Dreßler, Christian"},{"first_name":"Wolf Gero","last_name":"Schmidt","orcid":"0000-0002-2717-5076","full_name":"Schmidt, Wolf Gero","id":"468"}],"doi":"10.1088/1361-648x/ad9725","article_number":"075001","language":[{"iso":"eng"}],"abstract":[{"text":"<jats:title>Abstract</jats:title>\r\n               <jats:p>The natural band alignments between indium phosphide and the main dioxides of titanium, i.e. rutile, anatase, and brookite as well as amorphous titania are calculated from the branch-point energies of the respective materials. Irrespective of the titania polymorph considered, type-I band alignment is predicted. This may change, however, in dependence on the microscopic interface structure: supercell calculations for amorphous titania grown on P-rich InP(001) surfaces result in a titania conduction band that nearly aligns with that of InP. Depending on the interface specifics, both type-I band and type-II band alignments are observed in the simulations. This agrees with recent experimental findings.</jats:p>","lang":"eng"}],"issue":"7","publication":"Journal of Physics: Condensed Matter","type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"230"},{"_id":"27"},{"_id":"35"}],"date_created":"2025-07-09T13:40:51Z","status":"public","user_id":"16199","volume":37,"publisher":"IOP Publishing","_id":"60581","project":[{"_id":"53","name":"TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen"},{"_id":"55","name":"TRR 142 - B: TRR 142 - Project Area B"},{"name":"TRR 142 - B07: TRR 142 - Polaronen-Einfluss auf die optischen Eigenschaften von Lithiumniobat (B07*)","_id":"168"}],"citation":{"mla":"Ruiz Alvarado, Isaac Azahel, et al. “Band Alignment at InP/TiO<sub>2</sub> Interfaces from Density-Functional Theory.” <i>Journal of Physics: Condensed Matter</i>, vol. 37, no. 7, 075001, IOP Publishing, 2024, doi:<a href=\"https://doi.org/10.1088/1361-648x/ad9725\">10.1088/1361-648x/ad9725</a>.","ama":"Ruiz Alvarado IA, Dreßler C, Schmidt WG. Band alignment at InP/TiO<sub>2</sub> interfaces from density-functional theory. <i>Journal of Physics: Condensed Matter</i>. 2024;37(7). doi:<a href=\"https://doi.org/10.1088/1361-648x/ad9725\">10.1088/1361-648x/ad9725</a>","bibtex":"@article{Ruiz Alvarado_Dreßler_Schmidt_2024, title={Band alignment at InP/TiO<sub>2</sub> interfaces from density-functional theory}, volume={37}, DOI={<a href=\"https://doi.org/10.1088/1361-648x/ad9725\">10.1088/1361-648x/ad9725</a>}, number={7075001}, journal={Journal of Physics: Condensed Matter}, publisher={IOP Publishing}, author={Ruiz Alvarado, Isaac Azahel and Dreßler, Christian and Schmidt, Wolf Gero}, year={2024} }","apa":"Ruiz Alvarado, I. A., Dreßler, C., &#38; Schmidt, W. G. (2024). Band alignment at InP/TiO<sub>2</sub> interfaces from density-functional theory. <i>Journal of Physics: Condensed Matter</i>, <i>37</i>(7), Article 075001. <a href=\"https://doi.org/10.1088/1361-648x/ad9725\">https://doi.org/10.1088/1361-648x/ad9725</a>","ieee":"I. A. Ruiz Alvarado, C. Dreßler, and W. G. Schmidt, “Band alignment at InP/TiO<sub>2</sub> interfaces from density-functional theory,” <i>Journal of Physics: Condensed Matter</i>, vol. 37, no. 7, Art. no. 075001, 2024, doi: <a href=\"https://doi.org/10.1088/1361-648x/ad9725\">10.1088/1361-648x/ad9725</a>.","chicago":"Ruiz Alvarado, Isaac Azahel, Christian Dreßler, and Wolf Gero Schmidt. “Band Alignment at InP/TiO<sub>2</sub> Interfaces from Density-Functional Theory.” <i>Journal of Physics: Condensed Matter</i> 37, no. 7 (2024). <a href=\"https://doi.org/10.1088/1361-648x/ad9725\">https://doi.org/10.1088/1361-648x/ad9725</a>.","short":"I.A. Ruiz Alvarado, C. Dreßler, W.G. Schmidt, Journal of Physics: Condensed Matter 37 (2024)."}},{"doi":"10.1002/solr.202301047","language":[{"iso":"eng"}],"publication_status":"published","date_updated":"2025-12-05T13:37:24Z","intvolume":"         8","year":"2024","title":"Integration of Multijunction Absorbers and Catalysts for Efficient Solar‐Driven Artificial Leaf Structures: A Physical and Materials Science Perspective","publication_identifier":{"issn":["2367-198X","2367-198X"]},"author":[{"full_name":"Hannappel, Thomas","first_name":"Thomas","last_name":"Hannappel"},{"full_name":"Shekarabi, Sahar","first_name":"Sahar","last_name":"Shekarabi"},{"last_name":"Jaegermann","first_name":"Wolfram","full_name":"Jaegermann, Wolfram"},{"last_name":"Runge","first_name":"Erich","full_name":"Runge, Erich"},{"last_name":"Hofmann","first_name":"Jan Philipp","full_name":"Hofmann, Jan Philipp"},{"first_name":"Roel","last_name":"van de Krol","full_name":"van de Krol, Roel"},{"full_name":"May, Matthias M.","first_name":"Matthias M.","last_name":"May"},{"full_name":"Paszuk, Agnieszka","last_name":"Paszuk","first_name":"Agnieszka"},{"first_name":"Franziska","last_name":"Hess","full_name":"Hess, Franziska"},{"last_name":"Bergmann","first_name":"Arno","full_name":"Bergmann, Arno"},{"full_name":"Bund, Andreas","last_name":"Bund","first_name":"Andreas"},{"last_name":"Cierpka","first_name":"Christian","full_name":"Cierpka, Christian"},{"last_name":"Dreßler","first_name":"Christian","full_name":"Dreßler, Christian"},{"full_name":"Dionigi, Fabio","last_name":"Dionigi","first_name":"Fabio"},{"full_name":"Friedrich, Dennis","last_name":"Friedrich","first_name":"Dennis"},{"full_name":"Favaro, Marco","last_name":"Favaro","first_name":"Marco"},{"first_name":"Stefan","last_name":"Krischok","full_name":"Krischok, Stefan"},{"last_name":"Kurniawan","first_name":"Mario","full_name":"Kurniawan, Mario"},{"full_name":"Lüdge, Kathy","last_name":"Lüdge","first_name":"Kathy"},{"last_name":"Lei","first_name":"Yong","full_name":"Lei, Yong"},{"first_name":"Beatriz","last_name":"Roldán Cuenya","full_name":"Roldán Cuenya, Beatriz"},{"full_name":"Schaaf, Peter","last_name":"Schaaf","first_name":"Peter"},{"full_name":"Schmidt‐Grund, Rüdiger","last_name":"Schmidt‐Grund","first_name":"Rüdiger"},{"id":"468","full_name":"Schmidt, Wolf Gero","last_name":"Schmidt","first_name":"Wolf Gero","orcid":"0000-0002-2717-5076"},{"last_name":"Strasser","first_name":"Peter","full_name":"Strasser, Peter"},{"full_name":"Unger, Eva","last_name":"Unger","first_name":"Eva"},{"last_name":"Vasquez Montoya","first_name":"Manuel F.","full_name":"Vasquez Montoya, Manuel F."},{"full_name":"Wang, Dong","last_name":"Wang","first_name":"Dong"},{"first_name":"Hongbin","last_name":"Zhang","full_name":"Zhang, Hongbin"}],"type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"230"},{"_id":"35"}],"date_created":"2024-06-24T09:44:41Z","abstract":[{"lang":"eng","text":"<jats:p>\r\nArtificial leaves could be the breakthrough technology to overcome the limitations of storage and mobility through the synthesis of chemical fuels from sunlight, which will be an essential component of a sustainable future energy system. However, the realization of efficient solar‐driven artificial leaf structures requires integrated specialized materials such as semiconductor absorbers, catalysts, interfacial passivation, and contact layers. To date, no competitive system has emerged due to a lack of scientific understanding, knowledge‐based design rules, and scalable engineering strategies. Herein, competitive artificial leaf devices for water splitting, focusing on multiabsorber structures to achieve solar‐to‐hydrogen conversion efficiencies exceeding 15%, are discussed. A key challenge is integrating photovoltaic and electrochemical functionalities in a single device. Additionally, optimal electrocatalysts for intermittent operation at photocurrent densities of 10–20 mA cm<jats:sup>−2</jats:sup> must be immobilized on the absorbers with specifically designed interfacial passivation and contact layers, so‐called buried junctions. This minimizes voltage and current losses and prevents corrosive side reactions. Key challenges include understanding elementary steps, identifying suitable materials, and developing synthesis and processing techniques for all integrated components. This is crucial for efficient, robust, and scalable devices. Herein, corresponding research efforts to produce green hydrogen with unassisted solar‐driven (photo‐)electrochemical devices are discussed and reported.</jats:p>"}],"issue":"11","publication":"Solar RRL","user_id":"16199","volume":8,"_id":"54867","publisher":"Wiley","status":"public","citation":{"chicago":"Hannappel, Thomas, Sahar Shekarabi, Wolfram Jaegermann, Erich Runge, Jan Philipp Hofmann, Roel van de Krol, Matthias M. May, et al. “Integration of Multijunction Absorbers and Catalysts for Efficient Solar‐Driven Artificial Leaf Structures: A Physical and Materials Science Perspective.” <i>Solar RRL</i> 8, no. 11 (2024). <a href=\"https://doi.org/10.1002/solr.202301047\">https://doi.org/10.1002/solr.202301047</a>.","ama":"Hannappel T, Shekarabi S, Jaegermann W, et al. Integration of Multijunction Absorbers and Catalysts for Efficient Solar‐Driven Artificial Leaf Structures: A Physical and Materials Science Perspective. <i>Solar RRL</i>. 2024;8(11). doi:<a href=\"https://doi.org/10.1002/solr.202301047\">10.1002/solr.202301047</a>","short":"T. Hannappel, S. Shekarabi, W. Jaegermann, E. Runge, J.P. Hofmann, R. van de Krol, M.M. May, A. Paszuk, F. Hess, A. Bergmann, A. Bund, C. Cierpka, C. Dreßler, F. Dionigi, D. Friedrich, M. Favaro, S. Krischok, M. Kurniawan, K. Lüdge, Y. Lei, B. Roldán Cuenya, P. Schaaf, R. Schmidt‐Grund, W.G. Schmidt, P. Strasser, E. Unger, M.F. Vasquez Montoya, D. Wang, H. Zhang, Solar RRL 8 (2024).","bibtex":"@article{Hannappel_Shekarabi_Jaegermann_Runge_Hofmann_van de Krol_May_Paszuk_Hess_Bergmann_et al._2024, title={Integration of Multijunction Absorbers and Catalysts for Efficient Solar‐Driven Artificial Leaf Structures: A Physical and Materials Science Perspective}, volume={8}, DOI={<a href=\"https://doi.org/10.1002/solr.202301047\">10.1002/solr.202301047</a>}, number={11}, journal={Solar RRL}, publisher={Wiley}, author={Hannappel, Thomas and Shekarabi, Sahar and Jaegermann, Wolfram and Runge, Erich and Hofmann, Jan Philipp and van de Krol, Roel and May, Matthias M. and Paszuk, Agnieszka and Hess, Franziska and Bergmann, Arno and et al.}, year={2024} }","apa":"Hannappel, T., Shekarabi, S., Jaegermann, W., Runge, E., Hofmann, J. P., van de Krol, R., May, M. M., Paszuk, A., Hess, F., Bergmann, A., Bund, A., Cierpka, C., Dreßler, C., Dionigi, F., Friedrich, D., Favaro, M., Krischok, S., Kurniawan, M., Lüdge, K., … Zhang, H. (2024). Integration of Multijunction Absorbers and Catalysts for Efficient Solar‐Driven Artificial Leaf Structures: A Physical and Materials Science Perspective. <i>Solar RRL</i>, <i>8</i>(11). <a href=\"https://doi.org/10.1002/solr.202301047\">https://doi.org/10.1002/solr.202301047</a>","mla":"Hannappel, Thomas, et al. “Integration of Multijunction Absorbers and Catalysts for Efficient Solar‐Driven Artificial Leaf Structures: A Physical and Materials Science Perspective.” <i>Solar RRL</i>, vol. 8, no. 11, Wiley, 2024, doi:<a href=\"https://doi.org/10.1002/solr.202301047\">10.1002/solr.202301047</a>.","ieee":"T. Hannappel <i>et al.</i>, “Integration of Multijunction Absorbers and Catalysts for Efficient Solar‐Driven Artificial Leaf Structures: A Physical and Materials Science Perspective,” <i>Solar RRL</i>, vol. 8, no. 11, 2024, doi: <a href=\"https://doi.org/10.1002/solr.202301047\">10.1002/solr.202301047</a>."}},{"publication":"Small","citation":{"chicago":"Groll, Maja, Julius Bürger, Ioannis Caltzidis, Klaus D. Jöns, Wolf Gero Schmidt, Uwe Gerstmann, and Jörg K. N. Lindner. “DFT‐Assisted Investigation of the Electric Field and Charge Density Distribution of Pristine and Defective 2D WSe<sub>2</sub> by Differential Phase Contrast Imaging.” <i>Small</i>, 2024. <a href=\"https://doi.org/10.1002/smll.202311635\">https://doi.org/10.1002/smll.202311635</a>.","short":"M. Groll, J. Bürger, I. Caltzidis, K.D. Jöns, W.G. Schmidt, U. Gerstmann, J.K.N. Lindner, Small (2024).","ieee":"M. Groll <i>et al.</i>, “DFT‐Assisted Investigation of the Electric Field and Charge Density Distribution of Pristine and Defective 2D WSe<sub>2</sub> by Differential Phase Contrast Imaging,” <i>Small</i>, 2024, doi: <a href=\"https://doi.org/10.1002/smll.202311635\">10.1002/smll.202311635</a>.","apa":"Groll, M., Bürger, J., Caltzidis, I., Jöns, K. D., Schmidt, W. G., Gerstmann, U., &#38; Lindner, J. K. N. (2024). DFT‐Assisted Investigation of the Electric Field and Charge Density Distribution of Pristine and Defective 2D WSe<sub>2</sub> by Differential Phase Contrast Imaging. <i>Small</i>. <a href=\"https://doi.org/10.1002/smll.202311635\">https://doi.org/10.1002/smll.202311635</a>","bibtex":"@article{Groll_Bürger_Caltzidis_Jöns_Schmidt_Gerstmann_Lindner_2024, title={DFT‐Assisted Investigation of the Electric Field and Charge Density Distribution of Pristine and Defective 2D WSe<sub>2</sub> by Differential Phase Contrast Imaging}, DOI={<a href=\"https://doi.org/10.1002/smll.202311635\">10.1002/smll.202311635</a>}, journal={Small}, publisher={Wiley}, author={Groll, Maja and Bürger, Julius and Caltzidis, Ioannis and Jöns, Klaus D. and Schmidt, Wolf Gero and Gerstmann, Uwe and Lindner, Jörg K. N.}, year={2024} }","ama":"Groll M, Bürger J, Caltzidis I, et al. DFT‐Assisted Investigation of the Electric Field and Charge Density Distribution of Pristine and Defective 2D WSe<sub>2</sub> by Differential Phase Contrast Imaging. <i>Small</i>. Published online 2024. doi:<a href=\"https://doi.org/10.1002/smll.202311635\">10.1002/smll.202311635</a>","mla":"Groll, Maja, et al. “DFT‐Assisted Investigation of the Electric Field and Charge Density Distribution of Pristine and Defective 2D WSe<sub>2</sub> by Differential Phase Contrast Imaging.” <i>Small</i>, Wiley, 2024, doi:<a href=\"https://doi.org/10.1002/smll.202311635\">10.1002/smll.202311635</a>."},"abstract":[{"text":"<jats:title>Abstract</jats:title><jats:p>Most properties of solid materials are defined by their internal electric field and charge density distributions which so far are difficult to measure with high spatial resolution. Especially for 2D materials, the atomic electric fields influence the optoelectronic properties. In this study, the atomic‐scale electric field and charge density distribution of WSe<jats:sub>2</jats:sub> bi‐ and trilayers are revealed using an emerging microscopy technique, differential phase contrast (DPC) imaging in scanning transmission electron microscopy (STEM). For pristine material, a higher positive charge density located at the selenium atomic columns compared to the tungsten atomic columns is obtained and tentatively explained by a coherent scattering effect. Furthermore, the change in the electric field distribution induced by a missing selenium atomic column is investigated. A characteristic electric field distribution in the vicinity of the defect with locally reduced magnitudes compared to the pristine lattice is observed. This effect is accompanied by a considerable inward relaxation of the surrounding lattice, which according to first principles DFT calculation is fully compatible with a missing column of Se atoms. This shows that DPC imaging, as an electric field sensitive technique, provides additional and remarkable information to the otherwise only structural analysis obtained with conventional STEM imaging.</jats:p>","lang":"eng"}],"project":[{"name":"TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen","_id":"53"},{"name":"TRR 142 - A: TRR 142 - Project Area A","_id":"54"},{"name":"TRR 142 - B: TRR 142 - Project Area B","_id":"55"},{"_id":"166","name":"TRR 142 - A11: TRR 142 - Subproject A11"},{"name":"TRR 142 - B07: TRR 142 - Polaronen-Einfluss auf die optischen Eigenschaften von Lithiumniobat (B07*)","_id":"168"},{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"date_created":"2024-06-24T09:46:25Z","type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"790"},{"_id":"642"},{"_id":"286"},{"_id":"429"},{"_id":"230"},{"_id":"27"},{"_id":"35"},{"_id":"169"}],"status":"public","year":"2024","title":"DFT‐Assisted Investigation of the Electric Field and Charge Density Distribution of Pristine and Defective 2D WSe<sub>2</sub> by Differential Phase Contrast Imaging","publication_identifier":{"issn":["1613-6810","1613-6829"]},"author":[{"last_name":"Groll","first_name":"Maja","full_name":"Groll, Maja"},{"last_name":"Bürger","first_name":"Julius","full_name":"Bürger, Julius","id":"46952"},{"full_name":"Caltzidis, Ioannis","last_name":"Caltzidis","first_name":"Ioannis","id":"87911"},{"id":"85353","full_name":"Jöns, Klaus D.","last_name":"Jöns","first_name":"Klaus D."},{"id":"468","first_name":"Wolf Gero","last_name":"Schmidt","orcid":"0000-0002-2717-5076","full_name":"Schmidt, Wolf Gero"},{"first_name":"Uwe","last_name":"Gerstmann","orcid":"0000-0002-4476-223X","full_name":"Gerstmann, Uwe","id":"171"},{"full_name":"Lindner, Jörg K. N.","first_name":"Jörg K. N.","last_name":"Lindner","id":"20797"}],"publication_status":"published","date_updated":"2025-12-05T13:39:01Z","article_type":"original","_id":"54868","language":[{"iso":"eng"}],"publisher":"Wiley","user_id":"16199","doi":"10.1002/smll.202311635"},{"type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"230"},{"_id":"27"},{"_id":"35"}],"date_created":"2025-07-09T13:47:37Z","abstract":[{"text":"<jats:title>Abstract</jats:title><jats:p>The current efficiency records for generating green hydrogen via solar water splitting are held by indium phosphide (InP)‐based photo‐absorbers, protected by TiO<jats:sub>2</jats:sub> layers grown through atomic layer deposition (ALD). InP is also a leading material for photonic integrated circuits and computing, where ultrafast near‐surface behavior is key. A previous study described electronic pathways at the phosphorus‐rich (P‐rich) surface of p‐doped InP(100) using time‐resolved two‐photon photoemission (tr‐2PPE) spectroscopy. Here, the intricate electron pathways of the P‐rich InP surface modified with ALD‐deposited TiO<jats:sub>2</jats:sub> are explored. Photoexcited bulk InP electrons migrate through a bulk‐to‐surface transition cluster of states and surface states and inject into the TiO<jats:sub>2</jats:sub> conduction band (CB). Energy levels and occupation dynamics of CB states in P‐rich InP and TiO<jats:sub>2</jats:sub> adlayers are observed, with discrete states preserved up to 10 nm TiO<jats:sub>2</jats:sub> deposition. Thermalization lifetimes of excited electrons &gt; 0.8 eV above the InP conduction band minimum (CBM) are preserved for layer thicknesses up to 2.5 nm. Annealing at 300 °C to achieve crystalline TiO<jats:sub>2</jats:sub> reconstructions destroys interfacial states, affecting charge transfer. These observations enable innovative engineering of the P‐rich InP/TiO<jats:sub>2</jats:sub> heterointerface, opening new possibilities for studying hot‐carrier extraction, adsorbate effects, surface plasmons, and improving photovoltaic and PEC water‐splitting devices.</jats:p>","lang":"eng"}],"publication":"Advanced Functional Materials","issue":"49","doi":"10.1002/adfm.202409455","language":[{"iso":"eng"}],"publication_status":"published","date_updated":"2025-12-05T13:39:54Z","article_type":"original","intvolume":"        34","title":"Ultrafast Electron Dynamics at the P‐rich Indium Phosphide/TiO<sub>2</sub> Interface","year":"2024","publication_identifier":{"issn":["1616-301X","1616-3028"]},"author":[{"full_name":"Diederich, Jonathan","last_name":"Diederich","first_name":"Jonathan"},{"first_name":"Jennifer Velazquez","last_name":"Rojas","full_name":"Rojas, Jennifer Velazquez"},{"full_name":"Paszuk, Agnieszka","first_name":"Agnieszka","last_name":"Paszuk"},{"first_name":"Mohammad Amin Zare","last_name":"Pour","full_name":"Pour, Mohammad Amin Zare"},{"full_name":"Höhn, Christian","first_name":"Christian","last_name":"Höhn"},{"id":"79462","first_name":"Isaac Azahel","orcid":"0000-0002-4710-1170","last_name":"Ruiz Alvarado","full_name":"Ruiz Alvarado, Isaac Azahel"},{"first_name":"Klaus","last_name":"Schwarzburg","full_name":"Schwarzburg, Klaus"},{"first_name":"David","last_name":"Ostheimer","full_name":"Ostheimer, David"},{"last_name":"Eichberger","first_name":"Rainer","full_name":"Eichberger, Rainer"},{"orcid":"0000-0002-2717-5076","first_name":"Wolf Gero","last_name":"Schmidt","full_name":"Schmidt, Wolf Gero","id":"468"},{"first_name":"Thomas","last_name":"Hannappel","full_name":"Hannappel, Thomas"},{"first_name":"Roel","last_name":"van de Krol","full_name":"van de Krol, Roel"},{"last_name":"Friedrich","first_name":"Dennis","full_name":"Friedrich, Dennis"}],"citation":{"short":"J. Diederich, J.V. Rojas, A. Paszuk, M.A.Z. Pour, C. Höhn, I.A. Ruiz Alvarado, K. Schwarzburg, D. Ostheimer, R. Eichberger, W.G. Schmidt, T. Hannappel, R. van de Krol, D. Friedrich, Advanced Functional Materials 34 (2024).","chicago":"Diederich, Jonathan, Jennifer Velazquez Rojas, Agnieszka Paszuk, Mohammad Amin Zare Pour, Christian Höhn, Isaac Azahel Ruiz Alvarado, Klaus Schwarzburg, et al. “Ultrafast Electron Dynamics at the P‐rich Indium Phosphide/TiO<sub>2</sub> Interface.” <i>Advanced Functional Materials</i> 34, no. 49 (2024). <a href=\"https://doi.org/10.1002/adfm.202409455\">https://doi.org/10.1002/adfm.202409455</a>.","ieee":"J. Diederich <i>et al.</i>, “Ultrafast Electron Dynamics at the P‐rich Indium Phosphide/TiO<sub>2</sub> Interface,” <i>Advanced Functional Materials</i>, vol. 34, no. 49, 2024, doi: <a href=\"https://doi.org/10.1002/adfm.202409455\">10.1002/adfm.202409455</a>.","apa":"Diederich, J., Rojas, J. V., Paszuk, A., Pour, M. A. Z., Höhn, C., Ruiz Alvarado, I. A., Schwarzburg, K., Ostheimer, D., Eichberger, R., Schmidt, W. G., Hannappel, T., van de Krol, R., &#38; Friedrich, D. (2024). Ultrafast Electron Dynamics at the P‐rich Indium Phosphide/TiO<sub>2</sub> Interface. <i>Advanced Functional Materials</i>, <i>34</i>(49). <a href=\"https://doi.org/10.1002/adfm.202409455\">https://doi.org/10.1002/adfm.202409455</a>","bibtex":"@article{Diederich_Rojas_Paszuk_Pour_Höhn_Ruiz Alvarado_Schwarzburg_Ostheimer_Eichberger_Schmidt_et al._2024, title={Ultrafast Electron Dynamics at the P‐rich Indium Phosphide/TiO<sub>2</sub> Interface}, volume={34}, DOI={<a href=\"https://doi.org/10.1002/adfm.202409455\">10.1002/adfm.202409455</a>}, number={49}, journal={Advanced Functional Materials}, publisher={Wiley}, author={Diederich, Jonathan and Rojas, Jennifer Velazquez and Paszuk, Agnieszka and Pour, Mohammad Amin Zare and Höhn, Christian and Ruiz Alvarado, Isaac Azahel and Schwarzburg, Klaus and Ostheimer, David and Eichberger, Rainer and Schmidt, Wolf Gero and et al.}, year={2024} }","ama":"Diederich J, Rojas JV, Paszuk A, et al. Ultrafast Electron Dynamics at the P‐rich Indium Phosphide/TiO<sub>2</sub> Interface. <i>Advanced Functional Materials</i>. 2024;34(49). doi:<a href=\"https://doi.org/10.1002/adfm.202409455\">10.1002/adfm.202409455</a>","mla":"Diederich, Jonathan, et al. “Ultrafast Electron Dynamics at the P‐rich Indium Phosphide/TiO<sub>2</sub> Interface.” <i>Advanced Functional Materials</i>, vol. 34, no. 49, Wiley, 2024, doi:<a href=\"https://doi.org/10.1002/adfm.202409455\">10.1002/adfm.202409455</a>."},"user_id":"16199","volume":34,"_id":"60582","publisher":"Wiley","status":"public"},{"date_created":"2024-06-24T06:26:02Z","type":"journal_article","department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"790"},{"_id":"230"},{"_id":"429"},{"_id":"27"},{"_id":"35"}],"issue":"1","publication":"Journal of Physics: Conference Series","abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title>\r\n               <jats:p>Theoretical spectroscopy based on double perturbation theory is typically challenged by systems with large orbital hyperfine splitting. Therefore, we here derive a rigorous, non-perturbative scheme starting from Dirac’s equation which allows to calculate the contribution of the orbital HFI for complex structures including heavy atoms with strong spin-orbit coupling (SOC). Using the PAW formalism, the method has been implemented in the software package Quantum ESPRESSO. We show that the ‘orbital part’ actually scales with SOC strength if orbital quenching is hindered by low local symmetry, i.e. in case of dimers or atoms at surfaces. This holds true in particular when the unpaired electron is localized in quasi-atomic <jats:italic>p</jats:italic>-like orbitals. Here, the orbital part is by far not negligible, but becomes dominant by surpassing the dipolar contribution by a factor of five.</jats:p>"}],"article_number":"012094","language":[{"iso":"eng"}],"doi":"10.1088/1742-6596/2701/1/012094","year":"2024","title":"Relativistic calculation of the orbital hyperfine splitting in complex microscopic structures","author":[{"last_name":"Franzke","first_name":"Katharina","full_name":"Franzke, Katharina"},{"full_name":"Schmidt, Wolf Gero","first_name":"Wolf Gero","orcid":"0000-0002-2717-5076","last_name":"Schmidt","id":"468"},{"id":"171","full_name":"Gerstmann, Uwe","last_name":"Gerstmann","first_name":"Uwe","orcid":"0000-0002-4476-223X"}],"publication_identifier":{"issn":["1742-6588","1742-6596"]},"publication_status":"published","date_updated":"2025-12-05T13:36:01Z","intvolume":"      2701","citation":{"chicago":"Franzke, Katharina, Wolf Gero Schmidt, and Uwe Gerstmann. “Relativistic Calculation of the Orbital Hyperfine Splitting in Complex Microscopic Structures.” <i>Journal of Physics: Conference Series</i> 2701, no. 1 (2024). <a href=\"https://doi.org/10.1088/1742-6596/2701/1/012094\">https://doi.org/10.1088/1742-6596/2701/1/012094</a>.","short":"K. Franzke, W.G. Schmidt, U. Gerstmann, Journal of Physics: Conference Series 2701 (2024).","ieee":"K. Franzke, W. G. Schmidt, and U. Gerstmann, “Relativistic calculation of the orbital hyperfine splitting in complex microscopic structures,” <i>Journal of Physics: Conference Series</i>, vol. 2701, no. 1, Art. no. 012094, 2024, doi: <a href=\"https://doi.org/10.1088/1742-6596/2701/1/012094\">10.1088/1742-6596/2701/1/012094</a>.","apa":"Franzke, K., Schmidt, W. G., &#38; Gerstmann, U. (2024). Relativistic calculation of the orbital hyperfine splitting in complex microscopic structures. <i>Journal of Physics: Conference Series</i>, <i>2701</i>(1), Article 012094. <a href=\"https://doi.org/10.1088/1742-6596/2701/1/012094\">https://doi.org/10.1088/1742-6596/2701/1/012094</a>","bibtex":"@article{Franzke_Schmidt_Gerstmann_2024, title={Relativistic calculation of the orbital hyperfine splitting in complex microscopic structures}, volume={2701}, DOI={<a href=\"https://doi.org/10.1088/1742-6596/2701/1/012094\">10.1088/1742-6596/2701/1/012094</a>}, number={1012094}, journal={Journal of Physics: Conference Series}, publisher={IOP Publishing}, author={Franzke, Katharina and Schmidt, Wolf Gero and Gerstmann, Uwe}, year={2024} }","ama":"Franzke K, Schmidt WG, Gerstmann U. Relativistic calculation of the orbital hyperfine splitting in complex microscopic structures. <i>Journal of Physics: Conference Series</i>. 2024;2701(1). doi:<a href=\"https://doi.org/10.1088/1742-6596/2701/1/012094\">10.1088/1742-6596/2701/1/012094</a>","mla":"Franzke, Katharina, et al. “Relativistic Calculation of the Orbital Hyperfine Splitting in Complex Microscopic Structures.” <i>Journal of Physics: Conference Series</i>, vol. 2701, no. 1, 012094, IOP Publishing, 2024, doi:<a href=\"https://doi.org/10.1088/1742-6596/2701/1/012094\">10.1088/1742-6596/2701/1/012094</a>."},"project":[{"name":"TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen","_id":"53"},{"_id":"54","name":"TRR 142 - A: TRR 142 - Project Area A"},{"name":"TRR 142 - B: TRR 142 - Project Area B","_id":"55"},{"_id":"166","name":"TRR 142 - A11: TRR 142 - Subproject A11"},{"_id":"168","name":"TRR 142 - B07: TRR 142 - Polaronen-Einfluss auf die optischen Eigenschaften von Lithiumniobat (B07*)"},{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"publisher":"IOP Publishing","_id":"54856","user_id":"16199","volume":2701,"status":"public"}]