SKM 2021 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 5: Poster Session I

CPP 5.12: Poster

Dienstag, 28. September 2021, 17:30–19:30, P

The Influence of CsBr on Crystal Orientation and Optoelectronic Properties of MAPbI3-based Solar Cells — •Yuqin Zou and Peter Müller-Buschbaum — Physik-Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Straße 1, 85748 Garching, Germany.

Crystal orientations are closely related to the behavior of the photogenerated charge carrier and vital for controlling the optoelectronic properties of perovskite solar cells. Herein, we propose a facile approach to reveal the effect of lattice plane orientations on the charge carrier kinetics via constructing CsBr doped mixed-cation perovskite phases. Through GIWAXS measurements, we systematically investigate the crystallographic properties of mixed perovskite films in the microscopic scales and reveal the effect of the extrinsic CsBr doping on the stacking behavior of the lattice planes. And provides a unique insight into the underlying relationship among the stacking pattern of crystal planes, the photo-generated charge carrier transport and the optoelectronic properties of solar cells.

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