Maqola

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

Guanhaojie ZhengBeijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, 100871, Beijing, ChinaCheng ZhuBeijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Materials Science and Engineering, Beijing Institute of Technology, 100081, Beijing, ChinaJingyuan MaBeijing National Laboratory for Molecular Science, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, ChinaXiaonan ZhangShanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 201204, Shanghai, ChinaGang TangSchool of Aerospace Engineering, Beijing Institute of Technology, 100081, Beijing, ChinaRunguang LiState Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, No. 30 Xueyuan Rd, Haidian District, 100083, Beijing, ChinaYihua ChenBeijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, 100871, Beijing, ChinaLiang LiBeijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, 100871, Beijing, ChinaJin‐Song HuBeijing National Laboratory for Molecular Science, Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, ChinaJiawang HongSchool of Aerospace Engineering, Beijing Institute of Technology, 100081, Beijing, ChinaQi ChenBeijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Materials Science and Engineering, Beijing Institute of Technology, 100081, Beijing, ChinaXingyu GaoShanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, 201204, Shanghai, ChinaHuanping ZhouBeijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, 100871, Beijing, China

2018en

ABI

Annotatsiya

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 ABX 3 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.

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Identifikatorlar

DOI: 10.1038/s41467-018-05076-w

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