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

Nature Communications
Guanhaojie ZhengHuanping Zhou

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 polycrystalline perovskites. Moreover, the preferred facet orientation is found to facilitate photocarrier transport across the absorber and pertaining interface in the resultant PV device, which provides an exemplary paradigm for further explorations that relate to the microstructures of hybrid perovskite materials and relevant optoelectronics.

References

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Citations

Nov 12, 2019·Advanced Materials·Haonan SiYue Zhang
Sep 11, 2020·Chemical Society Reviews·Nengxu LiHuanping Zhou
Jan 8, 2021·Chemical Society Reviews·Ammarah KausarYue Zhang
Jan 30, 2021·ACS Applied Materials & Interfaces·Antonio GünzlerUllrich Steiner
Feb 26, 2021·ACS Applied Materials & Interfaces·Yansen SunFederico Rosei
Feb 27, 2021·Advanced Materials·Julian A SteeleMaarten B J Roeffaers
Jul 13, 2021·Chemical Reviews·Jie ChenOsman M Bakr
Aug 14, 2019·Journal of the American Chemical Society·Jingjing XueYang Yang
Aug 7, 2019·ACS Applied Materials & Interfaces·Kohei NishimuraShuzi Hayase
Mar 16, 2019·Chemical Reviews·Songcan WangLianzhou Wang
Sep 20, 2019·The Journal of Physical Chemistry Letters·Kaibo Zheng, Tönu Pullerits
Oct 16, 2021·Advanced Materials·Anna Capitaine, Beniamino Sciacca
Oct 27, 2021·ACS Applied Materials & Interfaces·Chun MaThomas D Anthopoulos
Dec 1, 2021·Advanced Materials·Yuzhuo ZhangRui Zhu
Jan 7, 2022·ACS Applied Materials & Interfaces·Yuqin ZouPeter Müller-Buschbaum

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Methods Mentioned

BETA
chemical treatment
X-ray
scanning electronic microscopy
atomic force microscopy
AFM

Software Mentioned

GIWAXS

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