Luis M Pazos-Outón, Monika Szumilo, Robin Lamboll, Johannes M Richter, Micaela Crespo-Quesada, Mojtaba Abdi-Jalebi, Harry J Beeson, Milan Vrućinić, Mejd Alsari, Henry J Snaith, Bruno Ehrler, Richard H Friend, Felix Deschler. Photon recycling in lead iodide perovskite solar cells Science 351 (6280), 1430-1433 (2016).
Perovskite semiconductors have recently shaken up the solar cell community because no other technology has ever seen such a fast increase in efficiency. We study the fundamental properties of these materials and devices thereof.
Singlet exciton fission is the conversion of a single excited state in organic semiconductors into two excited states of lower energy. We investigate ways to use this process for higher solar cell efficiency.
Demet Asil, Brian J Walker, Bruno Ehrler, Yana Vaynzof, Alessandro Sepe, Sam Bayliss, Aditya Sadhanala, Philip CY Chow, Paul E Hopkinson, Ullrich Steiner, Neil C Greenham, Richard H Friend. Role of PbSe structural stabilization in photovoltaic cells Advanced Functional Materials 25 (6), 928-935 (2015).
Quantum dots are highly tunable semiconductors with interesting properties. For example, their bandgap depends on their size, and they convert high-energy photons into multiple excitons. We study the physics of quantum dot solar cells.
J. Diekmann, P. Caprioglio, M.H. Futscher, V.M. Le Corre, S. Reichert, F. Jaiser, M. Arvind, L. Perdigón Toro, E. Gutierrez-Partida, F. Peña-Camargo, C. Deibel, B. Ehrler, T. Unold, T. Kirchartz, D. Neher and M. Stolterfoht, Pathways toWards 30% Efficient Single‐Junction Perovskite Solar Cells and the Role of Mobile Ions, Solar RRL 5, 8: 2100219: 1-13 (2021)
P. Geiregat, C. Rodá, I. Tanghe, S. Singh, A. Di Giacomo, D. Lebrun, G.G. Grimaldi, J. Maes, D. van Thourhout, I. Moreels, A.J. Houtepen and Z. Hens, Localization-limited exciton oscillator strength in colloidal CdSe nanoplatelets revealed by the optically induced stark effect, Light : Sci. Appl. 10, 1: 112: 1-11 (2021)
L.A. Muscarella, E.M. Hutter, J.M. Frost, G.G. Grimaldi, J. Versluis, H.J. Bakker and B. Ehrler, Accelerated Hot-Carrier Cooling in MAPbI3 Perovskite by Pressure-Induced Lattice Compression, J. Phys. Chem. Lett. 12, 17: 4118-4124 (2021)
L. Helmbrecht, M.H. Futscher, L.A. Muscarella, B. Ehrler and W.L. Noorduin, Ion Exchange Lithography: Localized Ion Exchange Reactions for Spatial Patterning of Perovskite Semiconductors and Insulators, Adv. Mater. 33, 20: 2005291: 1-6 (2021)
L. McGovern, I. Koschany, G.G. Grimaldi, L.A. Muscarella and B. Ehrler, Grain Size Influences Activation Energy and Migration Pathways in MAPbBr3 Perovskite Solar Cells, J. Phys. Chem. Lett. 12, 9: 2423-2428 (2021)