Berlin 2018 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 13: Poster Session I

HL 13.47: Poster

Monday, March 12, 2018, 17:30–19:30, Poster B

Optimization and Characterization of Perovskite Thin-Films — •Sandhya Tammireddy, Fabian Meier, Alexander Wagenpfahl, and Carsten Deibel — Institut für Physik, Technische Universität Chemnitz, 09126 Chemnitz, Germany

In the past few years, organo-metal trihalide perovskite solar cells have been attracting tremendous interest because of their unique properties in photovoltaic applications such as high mobilities and long lifetimes of charge carriers. In order to obtain high power conversion efficiencies in perovskite solar cells it is essential to fabricate high quality thin-films with controlled morphology and crystallinity. We produce methyl ammonium lead iodide solar cells by optimizing the absorber layer using solvent engineering techniques. Subsequently, we characterize our thin-films by measuring the time dependent photoluminescence. The decay of the photoluminescence signal allows us to determine the dominant charge carrier loss mechanisms in order to understand recombination in hybrid perovskites.