Manipulation of facet orientation in hybrid perovskite polycrystalline films by cation cascade.

ABSTRACT: Crystal orientations in multiple orders correlate to the properties of polycrystalline materials, and it is critical to manipulate these microstructural arrangements to enhance device performance. Herein, we report a controllable approach to manipulate the facet orientation within the ABX₃ hybrid perovskites polycrystalline films by cation cascade doping at A-site. Two-dimensional synchrotron radiation grazing incidence wide-angle X-ray scattering is employed to probe the crystal orientations in multiple orders in mixed perovskites thin films, revealing a general pattern to guide crystal planes stacking upon extrinsic doping during crystallization. Different from previous studies, this method enables to adjust the crystal stacking mode of certain crystallographic planes in polyc

SUBMITTER: Zheng G 

PROVIDER: S-EPMC6052040 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature