Dresden 2017 – wissenschaftliches Programm
CPP 13.18: Poster
Montag, 20. März 2017, 18:30–21:00, P1A
Investigation of the photophysical properties of methylammonium lead halide perovskite solar cells by electroluminescence spectroscopy — •Simon Berger1, Philipp Rieder1, David Kiermasch1, Mathias Fischer1, Kristofer Tvingstedt1, Andreas Baumann1,2, and Vladimir Dyakonov1,2 — 1Experimental Physics VI, Julius Maximilian University of Würzburg, 97074 Würzburg — 2Bavarian Center for Applied Energy Research ZAE, 97074 Würzburg
Organo lead halide perovskite solar cells are in the focus of current research as one of the most promising materials in thin film photovoltaics. With many cell configurations being presented so far, we evaluated solution-processed planar as well as mesoporous perovskite solar cells in terms of their corresponding ability to emit light, using the technique of electroluminescence spectroscopy. In that manner, we probed the impact of different transport materials in regular as well as inverted layouts by evaluating the radiative efficiency of devices. Additionally, we studied the effect of incorporating bromine as well as chlorine to partly replace the iodine in the crystal structure of the perovskite layer on the processes relevant for the operation of a solar cell.