Regensburg 2019 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 14: Poster
DS 14.4: Poster
Dienstag, 2. April 2019, 17:00–20:00, Poster E
Compositional Variation in Inkjet-Printed Lead Halide Perovskite — •Hampus Näsström1, Florian Mathies1, Thomas Unold2, and Eva Unger1 — 1Helmholtz-Zentrum Berlin für Materialien und Energie, Young Investigator Group Hybrid Materials Formation and Scaling, Berlin, Germany — 2Helmholtz-Zentrum Berlin für Materialien und Energie, Department Structure and Dynamics of Energy Materials, Berlin, Germany
Lead halide perovskites, APbX3, have recently proved an excellent absorber material for photovoltaic devices. Through variation of the cation, A, and halide, X, as well as mixing two or more of these, a huge variety of absorber materials are achievable. In this work, we present how controlled compositional variations within a sample of lead halide perovskite can be obtained via inkjet printing. Furthermore, we show how the variation in absorption, absolute photoluminescence and mobility throughout the sample can be correlated to the power conversion efficiencies of photovoltaic devices with the corresponding composition. This correlation provides us with a method for fast screening of potential absorber materials for photovoltaic applications without device manufacturing.