Dresden 2017 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 28: Poster: Fundamentals of Perovskite Photovoltaics (joint session CPP, DS, HL)

HL 28.18: Poster

Monday, March 20, 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 Baumann^1,2, and Vladimir Dyakonov^1,2 — 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.