Prof. Dr. Wolfgang Tress

Work at ZHAW

Position

• Head of Novel Semiconductor Devices Team
• Professor
• PhD supervision with the right to confer PhD theses at the University of Zurich

Focus

Organic Electronics, Perovskite solar cells, Device physics, Optoelectronic characterization, Device simulation, Semiconductors, Mixed ionic-electronic conductors

Teaching

• Physics for engineers, BA
• Physics on the micro and nanoscale, Master

Experience

• Marie-Curie fellow
  LMU Munich
  06 / 2019 - 03 / 2020
• Ambizione Energy fellow
  EPFL
  06 / 2017 - 05 / 2019
• Postdoc
  EPFL
  01 / 2014 - 05 / 2017
• Postdoc
  Linköping University
  04 / 2012 - 12 / 2013

Education and Continuing education

Education

• PhD. / Physics
  Technical University of Dresden
  01 / 2008 - 03 / 2012
• Master / Electrical Engineering
  University of Ulm
  10 / 2002 - 12 / 2007

Network

Membership of networks

EU PVSEC Scientific Committee

ORCID digital identifier

ORCID ID: 0000-0002-4010-239X

Awards

• Young Scientist Sustainable Development Goals Award
  WAYS, the Wenzhou Growth Foundation for Young Scientists and the Global SDGs and Leadership Development Center
  10 / 2025
• Web of Science Highly Cited Researcher
  Web of Science
  10 / 2025
• ERC Starting Grant
  European Research Council
  08 / 2019
• SPS Award in Applied Physics
  Swiss Physical Society
  08 / 2018
• Energy & Environmental Science Readers' Choice Lectureship
  Royal Society of Chemistry, UK
  12 / 2016
• Zeno Karl Schindler Award
  EPFL
  10 / 2016
• Georg-Helm-Preis
  Association for the Promotion of Students at Technische Universität Dresden
  08 / 2013
• Emanuel Goldberg Preis
  Robert Luther Foundation
  08 / 2012

Social media

Linkedin

Projects

• Machine Learning-Driven Optimization of Polymer Encapsulation Layers for Enhanced Stability of Perovskite Solar Cells / Project leader / Start imminent
• Stability investigations on perovskite solar cells / Project leader / ongoing
• Integrated Novel Bypass Element enabling stabel Perovskite Solar Cells and Modules for Mass Production / Project leader / ongoing
• Correlative Optoelectronics on the Nanoscale in Experiment and Simulation Applied to Perovskite Solar Cells / Project leader / ongoing
• Interface tailoring and modelling for perovskite solar cells / Project leader / ongoing
• Rationally Designed Thin Contact Layers enabling Large-Scale Perovskite-on-Silicon Tandem Photovoltaics / Project leader / ongoing
• Perovskite Accelerated Lifetime Assessment, degradation mechanism Comprehension for fast device reliability Enhancement / Project leader / ongoing
• Defect Engineering, Advanced Modelling and Characterization for Next Generation Opto-Electronic-Ionic Devices / Project leader / ongoing
• Voltage and quantum efficiency losses in indoor organic photovoltaic devices / Project leader / completed
• Reusing Openly Accessible research Data for Student theses / Team member / completed
• Towards stable and highly efficient lead-free perovskite white light-emitting diodes / Co-project leader / completed
• Experimental & Machine learning driven design of stable 2D/3D perovskite solar cells for outdoor applications / Project leader / completed
• Fabrication of single crystal perovskite memristor / Co-project leader / completed
• A glance into the detailed operation of perovskite solar cells / Project leader / completed
• Multifunctional Super-Continuum-Laser-Equipped Electro-Optical Probestation for Advanced Device Characterization / Project leader / completed
• Laboratory 4.0 – Digitization in applied materials research / Project leader / completed

Publications

Articles in scientific journal, peer-reviewed

• Ganaie, M. M., Mohammadi, M., Loizos, M., Rogdakis, K., Ansari, R. M., Bravetti, G., Ghasemi, M., Golobostanfard, M. R., Kumar, K., Ahmad, S., Sahu, S., Kymakis, E., Tress, W., Milić, J. V., & Kumar, M. (2026). Lead-free layered halide double perovskites with aromatic organic cations for resistive switching memories and artificial synapses. Materials Horizons. https://doi.org/10.1039/d5mh02220g
• Hong, Y.-K., Hwang, G., Ju, S.-Y., Torre Cachafeiro, M. A., Tress, W., Yang, S., & Kim, H.-S. (2026). Control of lattice strain in α‐FAPbI3 film. Small Structures, 7(2), e202500664. https://doi.org/10.1002/sstr.202500664
• Torre Cachafeiro, M., Worsley, C. A., Ji, F., Watson, T. M., & Tress, W. (2026). Inverted J-V hysteresis in perovskite solar cells : insights from photovoltaic quantum efficiency. ACS Energy Letters. https://doi.org/10.1021/acsenergylett.5c04035
• Sachsenweger, T., Torre Cachafeiro, M. A., & Tress, W. (2026). ChargeFabrica : a python-based finite difference multidimensional electro-ionic drift diffusion simulator applied to mesoporous perovskite solar cells. Materials Futures, 5(2), 25602. https://doi.org/10.1088/2752-5724/ae27e9
• Thiesbrummel, J., Milić, J. V., Deibel, C., Garnett, E. C., Tao, S., Kirchartz, T., Guerrero, A., Cameron, P., Tress, W., Saiful Islam, M., & Ehrler, B. (2026). Ion migration in perovskite solar cells. Nature Reviews Chemistry. https://doi.org/10.1038/s41570-025-00790-8
• Blätte, D., Günther, M., Ponseca Jr., C. S., Weis, A., Hooijer, R., Quincke, L., T. Cachafeiro, M. A., Tress, W., Perea, J. D., Leon, S., Shuaib, A., Chabera, P., Pullerits, T., Bein, T., & Ameri, T. (2026). Elucidating the origin of open‐circuit voltage in ternary organic solar cells with a nonfullerene and a fullerene acceptor. InfoMat. https://doi.org/10.1002/inf2.70109
• Kumar, R., Rakheja, B., Lamminen, N., Fasulo, F., Torre Cachafeiro, M. A., Hanmandlu, C., Grandhi, G. K., Bag, M., Muñoz‐García, A. B., Boschloo, G., Tress, W., Pavone, M., Vivo, P., & Johansson, E. M. J. (2025). Mechanistic insights into ionic conduction in lead halide perovskites and perovskite‐inspired materials. Advanced Energy Materials, 15(45), e03331. https://doi.org/10.1002/aenm.202503331
• Zbinden, O., Comi, E. L., Knapp, E., & Tress, W. (2025). Autoencoder for parameter estimation and current-voltage curve simulation of perovskite solar cells. Npj Computational Materials, 12(7). https://doi.org/10.1038/s41524-025-01875-0
• Torre Cachafeiro, M. A., & Tress, W. (2025). Ionic losses and gains in perovskite solar cells : impact on efficiency and stability. ACS Energy Letters, 10(10), 4849–4855. https://doi.org/10.1021/acsenergylett.5c02435
• Torre Cachafeiro, M. A., Narbey, S., Ruhstaller, B., Nüesch, F., & Tress, W. (2025). Visualising ionic screening in perovskite solar cells : a bumpy ride along the J-V curve. EES Solar, 1(5), 762–774. https://doi.org/10.1039/d5el00133a
• Parayil Shaji, S., & Tress, W. (2025). Data-driven analysis of hysteresis and stability in perovskite solar cells using machine learning : can machine learning help to extract hidden correlations from the perovskite database? – A case study on hysteresis and stability. Energy and AI, 20(100503). https://doi.org/10.1016/j.egyai.2025.100503
• Jeong, G.-H., Lee, G. S., Chitumalla, R. K., OH, J., Kim, J., Kwun, D.-G., Hwang, D.-H., Cho, I., Kim, D. I., Tress, W., Jang, J., Kwon, O.-P., Kim, Y.-H., & Seo, J.-Y. (2025). Electron-deficient intermolecular adhesives : a new class of multifunctional interlayers for efficient and stable perovskite solar cells. Journal of Energy Chemistry, 108, 165–172. https://doi.org/10.1016/j.jechem.2025.04.012
• Ebadi, F., Meraji, K., Torre Cachafeiro, M. A., Wolf, F., Sirtl, M. T., Bein, T., & Tress, W. (2025). Effects of tail states in Cs2AgBiBr6 double perovskites on solar cell performance : a temperature-dependent study of photovoltaic external quantum efficiency, open-circuit voltage, and luminescence. Advanced Energy Materials, 15(30), 2500758. https://doi.org/10.1002/aenm.202500758
• Othman, M., Agosta, L., Jeangros, Q., Jaffrès, A., Jenatsch, S., Carnevali, V., Lempesis, N., Slama, V., Steele, J. A., Zhang, R., Solano, E., Portale, G., Boureau, V., Paracchino, A., Bornet, A., Lai, H., Fu, F., Sachan, A. K., Tress, W., et al. (2025). Suppression of stacking faults for stable formamidinium‐rich perovskite absorbers. Advanced Materials, 37(26), 2502142. https://doi.org/10.1002/adma.202502142
• Luo, W., Castán, J. M. A., Mirani, D., Riquelme, A. J., Sachan, A. K., Kurman, O., Kim, S., Faini, F., Zimmermann, P., Hinderhofer, A., Patel, Y., Frei, A. T., Moser, J.-E., Ramirez, D., Schreiber, F., Maldivi, P., Seo, J.-Y., Tress, W., Grancini, G., et al. (2025). Photochromic control in hybrid perovskite photovoltaics. Advanced Materials, 37(20), 2420143. https://doi.org/10.1002/adma.202420143
• Zbinden, O., Knapp, E., & Tress, W. (2024). Identifying performance limiting parameters in perovskite solar cells using machine learning. Solar RRL, 8(6), 2300999. https://doi.org/10.1002/solr.202300999
• Torre Cachafeiro, M. A., Comi, E., Parayil Shaji, S., Narbey, S., Jenatsch, S., Knapp, E., & Tress, W. (2024). Ion migration in mesoscopic perovskite solar cells : effects on electroluminescence, open circuit voltage, and photovoltaic quantum efficiency. Advanced Energy Materials, 15(5), 2403850. https://doi.org/10.1002/aenm.202403850
• Schiller, A., Jenatsch, S., Blülle, B., Torre Cachafeiro, M. A., Ebadi Garjan, F., Kabir, N., Othman, M., Wolff, C. M., Hessler-Wyser, A., Ballif, C., Tress, W., & Ruhstaller, B. (2024). Assessing the influence of illumination on ion conductivity in perovskite solar cells. The Journal of Physical Chemistry Letters, 15(45), 11252–11258. https://doi.org/10.1021/acs.jpclett.4c02403
• Zhou, J., Tan, L., Liu, Y., Li, H., Liu, X., Li, M., Wang, S., Zhang, Y., Jiang, C., Hua, R., Tress, W., Meloni, S., & Yi, C. (2024). Highly efficient and stable perovskite solar cells via a multifunctional hole transporting material. Joule, 8(6), 1691–1706. https://doi.org/10.1016/j.joule.2024.02.019
• Torre Cachafeiro, M. A., Kumawat, N. K., Gao, F., & Tress, W. (2024). Pulsed operation of perovskite LEDs : a study on the role of mobile ions. National Science Review, 12(5), nwae128. https://doi.org/10.1093/nsr/nwae128
• Wu, H., Lu, H., Li, Y., Zhou, X., Zhou, G., Pan, H., Wu, H., Feng, X., Liu, F., Vandewal, K., Tress, W., Ma, Z., Bo, Z., & Tang, Z. (2024). Decreasing exciton dissociation rates for reduced voltage losses in organic solar cells. Nature Communications, 15(2693). https://doi.org/10.1038/s41467-024-46797-5
• Wu, H., Ma, Z., Li, M., Lu, H., Tang, A., Zhou, E., Wen, J., Sun, Y., Tress, W., Olsen, J. M. H., Meloni, S., Bo, Z., & Tang, Z. (2023). Impact of donor halogenation on reorganization energies and voltage losses in bulk-heterojunction solar cells. Energy & Environmental Science, 16(3), 1277–1290. https://doi.org/10.1039/D3EE00174A
• Feng, S.-P., Cheng, Y., Yip, H.-L., Zhong, Y., Fong, P. W. K., Li, G., Ng, A., Chen, C., Castriotta, L. A., Matteocci, F., Vesce, L., Saranin, D., Carlo, A. D., Wang, P., Wei Ho, J., Hou, Y., Lin, F., Aberle, A. G., Song, Z., et al. (2023). Roadmap on commercialization of metal halide perovskite photovoltaics. Journal of Physics: Materials, 6(3), 32501. https://doi.org/10.1088/2515-7639/acc893
• Kong, T., Song, J., Zhang, Y., Lim, E. L., Liu, X., Tress, W., & Bi, D. (2023). A newly crosslinked-double network PEDOT:PSS@PEGDMA toward highly-efficient and stable tin-lead perovskite solar cells. Small, 19(40), e2303159. https://doi.org/10.1002/smll.202303159
• Xu, T., Xiang, W., Yang, J., Kubicki, D. J., Tress, W., Chen, T., Fang, Z., Liu, Y., & Liu, S. (2023). Interface modification for efficient and stable inverted inorganic perovskite solar cells. Advanced Materials, 35(31), e2303346. https://doi.org/10.1002/adma.202303346
• Tan, L., Zhou, J., Zhao, X., Wang, S., Li, M., Jiang, C., Li, H., Zhang, Y., Ye, Y., Tress, W., Ding, L., Grätzel, M., & Yi, C. (2023). Combined vacuum evaporation and solution process for high-efficiency large-area perovskite solar cells with exceptional reproducibility. Advanced Materials, 35(13), e2205027. https://doi.org/10.1002/adma.202205027
• Fakharuddin, A., Gangishetty, M. K., Abdi-Jalebi, M., Chin, S.-H., bin Mohd Yusoff, Abd. R., Congreve, D. N., Tress, W., Deschler, F., Vasilopoulou, M., & Bolink, H. J. (2022). Perovskite light-emitting diodes. Nature Electronics, 5(4), 203–216. https://doi.org/10.1038/s41928-022-00745-7
• Sirtl, M. T., Hooijer, R., Armer, M., Ebadi Garjan, F., Mohammadi, M., Maheu, C., Weis, A., van Gorkom, B. T., Häringer, S., Janssen, R. A. J., Mayer, T., Dyakonov, V., Tress, W., & Bein, T. (2022). 2D/3D hybrid Cs2AgBiBr6 double perovskite solar cells : improved energy level alignment for higher contact‐selectivity and large open circuit voltage. Advanced Energy Materials, 12(7), 2103215. https://doi.org/10.1002/aenm.202103215
• Li, M., Zhou, J., Tan, L., Liu, Y., Wang, S., Jiang, C., Li, H., Zhao, X., Gao, X., Tress, W., Ding, L., & Yi, C. (2022). Brominated PEAI as multi‐functional passivator for high‐efficiency perovskite solar cell. Energy & Environmental Materials, 6(3), e12360. https://doi.org/10.1002/eem2.12360
• Wang, S., Tan, L., Zhou, J., Li, M., Zhao, X., Li, H., Tress, W., Ding, L., Graetzel, M., & Yi, C. (2022). Over 24% efficient MA-free CsxFA1−xPbX3 perovskite solar cells. Joule, 6(6), 1344–1356. https://doi.org/10.1016/j.joule.2022.05.002
• Xu, T., Xiang, W., Kubicki, D. J., Liu, Y., Tress, W., & Liu, S. (2022). Simultaneous lattice engineering and defect control via cadmium incorporation for high-performance inorganic perovskite solar cells. Advanced Science, 9(36), 2204486. https://doi.org/10.1002/advs.202204486
• Jiang, C., Zhou, J., Li, H., Tan, L., Li, M., Tress, W., Ding, L., Grätzel, M., & Yi, C. (2022). Double layer composite electrode strategy for efficient perovskite solar cells with excellent reverse-bias stability. Nano-Micro Letters, 15(1), 12. https://doi.org/10.1007/s40820-022-00985-4
• Li, M., Zhou, J., Tan, L., Li, H., Liu, Y., Jiang, C., Ye, Y., Ding, L., Tress, W., & Yi, C. (2022). Multifunctional succinate additive for flexible perovskite solar cells with more than 23% power-conversion efficiency. The Innovation, 3(6), 100310. https://doi.org/10.1016/j.xinn.2022.100310
• Chen, Z., Wang, J., Wu, H., Yang, J., Wang, Y., Zhang, J., Bao, Q., Wang, M., Ma, Z., Tress, W., & Tang, Z. (2022). A transparent electrode based on solution-processed ZnO for organic optoelectronic devices. Nature Communications, 13(1), 4387. https://doi.org/10.1038/s41467-022-32010-y
• Li, H., Zhou, J., Tan, L., Li, M., Jiang, C., Wang, S., Zhao, X., Liu, Y., Zhang, Y., Ye, Y., Tress, W., & Yi, C. (2022). Sequential vacuum-evaporated perovskite solar cells with more than 24% efficiency. Science Advances, 8(28), eabo7422. https://doi.org/10.1126/sciadv.abo7422
• Kim, M., Jeong, J., Lu, H., Lee, T. K., Eickemeyer, F. T., Liu, Y., Choi, I. W., Choi, S. J., Jo, Y., Kim, H.-B., Mo, S.-I., Kim, Y.-K., Lee, H., An, N. G., Cho, S., Tress, W. R., Zakeeruddin, S. M., Hagfeldt, A., Kim, J. Y., et al. (2022). Conformal quantum dot-SnO2 layers as electron transporters for efficient perovskite solar cells. Science, 375(6578), 302–306. https://doi.org/10.1126/science.abh1885
• Teng, P., Reichert, S., Xu, W., Yang, S.-C., Fu, F., Zou, Y., Yin, C., Bao, C., Karlsson, M., Liu, X., Qin, J., Yu, T., Tress, W., Yang, Y., Sun, B., Deibel, C., & Gao, F. (2021). Degradation and self-repairing in perovskite light-emitting diodes. Matter, 4(11), 3710–3724. https://doi.org/10.1016/j.matt.2021.09.007
• Xiang, W., Liu, S. (., & Tress, W. (2021). A review on the stability of inorganic metal halide perovskites : challenges and opportunities for stable solar cells. Energy & Environmental Science, 14(4), 2090–2113. https://doi.org/10.1039/D1EE00157D
• Jacobsson, T. J., Hultqvist, A., García-Fernández, A., Anand, A., Al-Ashouri, A., Hagfeldt, A., Crovetto, A., Abate, A., Ricciardulli, A. G., Vijayan, A., Kulkarni, A., Anderson, A. Y., Darwich, B. P., Yang, B., Coles, B. L., Perini, C. A. R., Rehermann, C., Ramirez, D., Fairen-Jimenez, D., et al. (2021). An open-access database and analysis tool for perovskite solar cells based on the FAIR data principles. Nature Energy, 7, 107–115. https://doi.org/10.1038/s41560-021-00941-3
• Chen, X.-K., Qian, D., Wang, Y., Kirchartz, T., Tress, W., Yao, H., Yuan, J., Hülsbeck, M., Zhang, M., Zou, Y., Sun, Y., Li, Y., Hou, J., Inganäs, O., Coropceanu, V., Bredas, J.-L., & Gao, F. (2021). A unified description of non-radiative voltage losses in organic solar cells. Nature Energy, 6(8), 799–806. https://doi.org/10.1038/s41560-021-00843-4
• Ummadisingu, A., Meloni, S., Mattoni, A., Tress, W., & Grätzel, M. (2021). Crystal‐size‐induced band gap tuning in perovskite films. Angewandte Chemie: International Edition, 60(39), 21368–21376. https://doi.org/10.1002/anie.202106394
• Kumawat, N. K., Tress, W., & Gao, F. (2021). Mobile ions determine the luminescence yield of perovskite light-emitting diodes under pulsed operation. Nature Communications, 12(4899). https://doi.org/10.1038/s41467-021-25016-5
• Chen, Z., Wang, J., Jin, H., Yang, J., Bao, Q., Ma, Z., Tress, W., & Tang, Z. (2021). An underestimated photoactive area in organic solar cells based on a ZnO interlayer. Journal of Materials Chemistry C, 9(35), 11753–11760. https://doi.org/10.1039/D1TC00745A
• Tress, W., & Sirtl, M. T. (2021). Cs2AgBiBr6Double perovskites as lead‐free alternatives for perovskite solar cells? Solar RRL. https://doi.org/10.1002/solr.202100770
• Xiang, W., Liu, S. (., & Tress, W. (2021). Interfaces and interfacial layers in inorganic perovskite solar cells. Angewandte Chemie: International Edition, 2021(60). https://doi.org/10.1002/anie.202108800
• Sadegh, F., Akin, S., Moghadam, M., Keshavarzi, R., Mirkhani, V., Ruiz‐Preciado, M. A., Akman, E., Zhang, H., Amini, M., Tangestaninejad, S., Mohammadpoor‐Baltork, I., Graetzel, M., Hagfeldt, A., & Tress, W. (2021). Copolymer‐templated nickel oxide for high‐efficiency mesoscopic perovskite solar cells in inverted architecture. Advanced Functional Materials, 31(33). https://doi.org/10.1002/adfm.202102237
• Sirtl, M. T., Ebadi, F., van Gorkom, B. T., Ganswindt, P., Janssen, R. A. J., Bein, T., & Tress, W. (2021). The bottlenecks of Cs2AgBiBr6 solar cells : how contacts and slow transients limit the performance. Advanced Optical Materials, 9(14), 2100202. https://doi.org/10.1002/adom.202100202
• Ebadi Garjan, F., Yang, B., Kim, Y., Mohammadpour, R., Taghavinia, N., Hagfeldt, A., & Tress, W. (2021). When photoluminescence, electroluminescence, and open-circuit voltage diverge : light soaking and halide segregation in perovskite solar cells. Journal of Materials Chemistry A, 9(24), 13967–13978. https://doi.org/10.1039/D1TA02878B
• Yang, B., Suo, J., Mosconi, E., Ricciarelli, D., Tress, W., De Angelis, F., Kim, H.-S., & Hagfeldt, A. (2020). Outstanding passivation effect by a mixed-salt interlayer with internal interactions in perovskite solar cells. ACS Energy Letters, 5(10), 3159–3167. https://doi.org/10.1021/acsenergylett.0c01664
• Lu, H., Liu, Y., Ahlawat, P., Mishra, A., Tress, W., Eickemeyer, F. T., Yang, Y., Fu, F., Wang, Z., Avalos, C. E., Carlsen, B. I., Agarwalla, A., Zhang, X., Li, X., Zhan, Y., Zakeeruddin, S. M., Emsley, L., Rothlisberger, U., Zheng, L., et al. (2020). Vapor-assisted deposition of highly efficient, stable black-phase FAPbI3 perovskite solar cells. Science, 370(6512), eabb8985. https://doi.org/10.1126/science.abb8985

Book chapters, peer-reviewed

• Tress, W. (2022). Physics of perovskite solar cells : efficiency, open‐circuit voltage, and recombination. In T. Miyasaka (Ed.), Perovskite Photovoltaics and Optoelectronics: From Fundamentals to Advanced Applications (pp. 127–172). Wiley. https://doi.org/10.1002/9783527826391.ch5
• Tress, W. (2021). Hysteresis in J–V characteristics. In H. Fujiwara (Ed.), Hybrid Perovskite Solar Cells: Characteristics and Operation (pp. 429–461). Wiley. https://doi.org/10.1002/9783527825851.ch16
• Le Corre, V. M., Wang, Z., Koster, L. J. A., & Tress, W. (2020). Device modeling of perovskite solar cells : insights and outlooks. In J. Ren & Z. Kan (Eds.), Soft-Matter Thin Film Solar Cells. AIP Publishing. https://doi.org/10.1063/9780735422414_004

Written conference contributions, peer-reviewed

Ebadi, F., Meraji, K., Torre Cachafeiro, M. A., Wolf, F., Sirtl, M. T., Bein, T., & Tress, W. (2025, December 9). Temperature-dependent study of EQE, VOC, and luminescence in Cs₂AgBiBr₆ solar cells. 10th International Conference on next Generation Solar Energy (NGSE), Erlangen-Nuremberg, Germany, 9-10 December 2025.

Other publications

Zeder, S., Aeberhard, U., Ruhstaller, B., & Tress, W. (2023). Photon recycling in metal halide perovskites : its modeling and relevance to optoelectronic devices. In J. P. Martínez-Pastor, P. P. Boix, & G. Xing (Eds.), Metal Halide Perovskites for Generation, Manipulation and Detection of Light (pp. 507–545). Elsevier. https://doi.org/10.1016/B978-0-323-91661-5.00001-5

Oral conference contributions and abstracts

• Mohammadi, M., & Tress, W. (2025, July 21). High-performance perovskite memristors. Proceedings of MATSUS Fall 2025 Conference. https://doi.org/10.29363/nanoge.matsusfall.2025.338
• Tress, W., & Torre Cachafeiro, M. A. (2025, July 16). Insights into ion-modulated charge collection in perovskite solar cells using spectrally resolved measurements [Conference presentation]. https://doi.org/10.29363/nanoge.perfunpro.2025.023
• Torre Cachafeiro, M., Narbey, S., Ruhstaller, B., Nüesch, F., & Tress, W. (2025, April 24). Ionic screening and its impact on J-V curves in carbon-based perovskite solar cells. Proceedings of International Conference on Perovskite Thin Film Photovoltaics and Perovskite Photonics and Optoelectronics (NIPHO25). https://doi.org/10.29363/nanoge.nipho.2025.004
• Schiller, A., Ruhstaller, B., Jenatsch, S., Torre Cachafeiro, M. A., Ebadi, F., Kabir, N., Blülle, B., Wolff, C. M., Hessler-Wyser, A., Ballif, C., Tress, W., & Othman, M. (2024, December 16). Assessing the influence of illumination on ion conductivity in perovskite solar cells. Proceedings of the MATSUS Spring 2025 Conference. https://doi.org/10.29363/nanoge.matsusspring.2025.418
• Zbinden, O., Knapp, E., & Tress, W. (2024). Machine learning for surpassing limits in perovskite solar cells [Conference presentation]. International Conference on Simulation of Organic Electronics and Photovoltaics 2024, 34. https://www.zhaw.ch/storage/engineering/institute-zentren/icp/veranstaltungen/simoep-2024/boa-simoep-24-v-august30.pdf
• Torre Cachafeiro, M. A., Comi, E., Parayil Shaji, S., Narbey, S., Jenatsch, S., & Tress, W. (2024, September 2). Visualizing ionic field screening in perovskite solar cells via photovoltaic quantum efficiency. International Conference on Simulation of Organic Electronics and Photovoltaics (SimOEP), Winterthur, Switzerland, 2-4 September 2024.
• Tress, W. (2022, November 7). Mixed ionic electronic conductivity in metal halide perovskites and its effects on solar cells. ATHENA Intensive Course in Metal Halide Perovskites: From Materials to Applications, Online, 7-10 November 2022.
• Torre Cachafeiro, M. A., Kumar Kumawat, N., Gao, F., & Tress, W. (2022, September 8). Simulating the transient luminescence of perovskite light-emitting diodes under pulsed operation. 8th International Conference on Simulation of Organic Electronics and Photovoltaics (SimOEP), Winterthur, Switzerland, 7-9 September 2022.
• Mohammadi, M., Ebadi Garjan, F., & Tress, W. (2022, September 8). Performance boosting polymeric finish layer for perovskite solar cells. 8th International Conference on Simulation of Organic Electronics and Photovoltaics (SimOEP), Winterthur, Switzerland, 7-9 September 2022.
• Tress, W. (2022, July 6). Device physics of perovskite solar cells. International Conference on Photovoltaic Science and Technologies (PVCON), Hatay, Turkey, 5-7 July 2022.
• Tress, W. (2022, June 25). Mixed conductivity in organic and hybrid materials. Gordon Research Seminar “Electronic Processes in Organic Materials”, Lucca, Italy, 25-26 June 2022.
• Tress, W. (2021, December 6). Characterizing perovskite solar cells and LEDs. ICAMD21, Korea (Online), 6-9 December 2021.
• Tress, W. (2021, October 28). Physics of perovskite optoelectronic devices. nanoGe Fall Meeting, Online, 18-22 October 2021.
• Tress, W. (2021, October 28). Perovskite solar cells. XVII Encuentro de Fisica, Online, Quito, Ecuador, 25-29 October 2021.
• Ebadi Garjan, F., Yang, B., & Tress, W. (2021, September 8). In-Operando PL measurements on perovskite solar cells with and without phase-segregation. 38th European Photovoltaic Solar Energy Conference and Exhibition (EUPVSEC), Online, 6-10 September 2021.
• Tress, W. (2021, May 25). The various effects of ion migration on perovskite devices. HOPV21, Online, 24-28 May 2021.
• Tress, W. (2020, November 19). Device physics of perovskite solar cells. 8th International Conference on Nanostructures (ICNS8), Tehran, Iran, 18-20 November 2020.
• Tress, W., & Ebadi Garjan, F. (2020, September 8). Negative capacitance in perovskite solar cells. 37th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), Online, 7-11 September 2020.
• Tress, W., Wang, Z., & Ebadi Garjan, F. (2020, September 2). Understanding transient optoelectronic measurements and operation of perovskite solar cells. 7th International Conference on Simulation of Organic Electronics and Photovoltaics (SimOEP), Online, 31 August - 2 September 2020.

Publications before appointment at the ZHAW

Full list

Research data

Ganaie, Mubashir Mushtaq; Mohammadi, Mahdi; Loizos, Michalis; Rogdakis, Konstantinos; Ansari, Rashid M.; Bravetti, Gianluca; Ghasemi, Maryam; Golobostanfard, Mohammad Reza; Kumar, Kishan; Ahmad, Shahab; Sahu, Satyajit; Kymakis, Emmanuel; Tress, Wolfgang; Milić, Jovana V.; Kumar, Mahesh, 2026. Lead-free layered halide double perovskites with aromatic organic cations for resistive switching memories and artificial synapses. Zenodo. Available from: https://doi.org/10.5281/zenodo.18866700

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