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From 1D to 3D: Fabrication of CH 3 NH 3 PbI 3 Perovskite Solar Cell Thin Films from (Pyrrolidinium)PbI 3 via Organic Cation Exchange Approach
Author(s) -
Miao Yu,
Fan Haochen,
Wang Pengcheng,
Zhang Yue,
Gao Caiyan,
Yang Lian-Ming,
Song YanLin,
Yang Chunhe,
Liu Cai-Ming,
Jiang Ke-jian
Publication year - 2020
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.202000148
Subject(s) - orthorhombic crystal system , perovskite (structure) , materials science , perovskite solar cell , spin coating , energy conversion efficiency , fabrication , thin film , solar cell , chemical engineering , phase (matter) , crystal structure , inorganic chemistry , crystallography , nanotechnology , chemistry , optoelectronics , organic chemistry , medicine , alternative medicine , pathology , engineering
A new crystal form of 1D perovskite (pyrrolidinium)PbI 3 (orthorhombic phase) is synthesized and characterized. The 1D perovskite has a good film formability by solution spin coating and is in situ transformed to 3D CH 3 NH 3 PbI 3 via the organic cation exchange approach in CH 3 NH 2 atmosphere, which is dense and uniform. The converted 3D perovskite film is used as a light absorber, and the corresponding perovskite solar cell shows a power conversion efficiency of up to 19.2% under simulated 1 sun AM1.5G illumination (100 mW cm −2 ).