Regensburg 2016 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 80: Hybrid and Perovskite Photovoltaics IV (Joint session of CPP, DF, DS and HL, organized by HL)

HL 80.8: Talk

Thursday, March 10, 2016, 17:00–17:15, H2

Controlling the optical properties of organic/inorganic halide perovskites by means of size and composition — •Verena A. Hintermayr, Lakshminarayana Polavarapu, Alexander S. Urban, and Jochen Feldmann — Chair for Photonics and Optoelectronics, Department of Physics, Ludwig-Maximilians-Universität (LMU), Amalienstaße 54, 80799 Munich, Germany

Organic/Inorganic halide perovskites display a huge potential for not only photovoltaic, but also light emitting applications. In order to improve the efficiency and functionality of applications based on this material a better control of their optical properties is desirable. Here, we present a general colloidal synthesis method for the preparation of hybrid organic/inorganic halide perovskite nanocrystals (NCs) with different size and composition. We have prepared highly stable perovskite NCs that show strong quantum confinement and NCs that exhibit bulk like optical properties. We additionally investigate the tunability of the optical properties of the NCs by systematically modifying their halide content (I, Br and Cl). This work opens up a simple synthetic route for the preparation of perovskite NCs with controllable dimensionality and composition.