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In the last decade, solar cells employing hybrid lead halide perovskites as light absorber material have emerged at an unprecedented pace, reaching efficiencies exceeding 22%. Due to their facile solution processing and impressive device performance, perovskite solar cells have the potential to become a low-cost photovoltaic technology. However, there are some key challenges which need to be tackled in order to advance towards the commercialization of perovskite solar cells.
I am in close collaboration with different research groups (e.g. from Imperial College London, TU Delft, University of Würzburg or TU Munich) to work in this, fast-growing, highly interdisciplinary field. My main focus lies on the following topics:
- Understanding the origin of the high performance of mixed-cation perovskite solar cells
- Investigating the humidity-induced degradation and improving the moisture stability of perovskite solar cells
- Development of 2D hybrid perovskite materials
Y. Hu, M.F. Aygüler, M.L. Petrus, T. Bein, P. Docampo, Impact of Rubidium and Cesium Cations on the Moisture Stability of Multiple-Cation Mixed-Halide Perovskites. ACS Energy Lett. 2017, 2, 2212-2218.
Y. Hu, J. Schlipf, M. Wussler, M. L. Petrus, W. Jaegermann, T. Bein, P. Müller-Buschbaum, P. Docampo, Hybrid Perovskite/Perovskite Heterojunction Solar Cells. ACS Nano 2016, 10 (6), 5999-6007.
M. L. Petrus,* Y. Hu,* D. Moia, P. Calado, A. M. A. Leguy, P. R. F. Barnes, P. Docampo, The Influence of Water Vapor on the Stability and Processing of Hybrid Perovskite Solar Cells Made from Non-Stoichiometric Precursor Mixtures. ChemSusChem 2016, 9 (18), 2699-2707.
A. M. A. Leguy,* Y. Hu,* M. Campoy-Quiles, M. I. Alonso, O.J. Weber, P. Azarhoosh, M. van Schilfgaarde, M. T. Weller, T. Bein, J. Nelson, P. Docampo and P. R. F. Barnes, Chem. Mater. 2015, 27 (9), 3397–3407.
M. L. Petrus, A. Music, A. C. Closs, J. C Bijleveld, M. Sirtl, Y. Hu, T. J. Dingemans, T. Bein, P. Docampo, Design Rules for the Preparation of Low-Cost Hole Transporting Materials for Perovskite Solar Cells with Moisture Barrier Properties. J. Mater. Chem. A, 2017, 5, 25200–25210.
A. Binek, M. L. Petrus, N. Huber, H. Bristow, Y. Hu, T. Bein, P. Docampo, Recycling perovskite solar cells to avoid lead waste. ACS Applied Materials Inter. 2016, 8 (20), 12881-12886.
L. Oesinghaus, J. Schlipf, N. Giesbrecht, L. Song, Y. Hu, T. Bein, P. Docampo, P. Müller-Buschbaum, Adv. Mater. Interfaces 2016, 3 (19).
D. D. Medina,* J. M. Rotter,* Y. Hu, M. Dogru, V. Werner, F. Auras, J. T. Markiewicz, P. Knochel and T. Bein, J. Am. Chem. Soc. 2015, 137, 1016-1019.
A. Ranft, I. Pavlichenko, K. Szendrei, P. M. Zehetmaier, Y. Hu, A. von Mankowski, B. V. Lotsch, Microporous Mesoporous Mater. 2015, 216, 216-224.
* Both authors contributed equally to the work.