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Hole Transport Layer Free Inorganic CsPbIBr 2 Perovskite Solar Cell by Dual Source Thermal Evaporation
Author(s) -
Ma Qingshan,
Huang Shujuan,
Wen Xiaoming,
Green Martin A.,
HoBaillie Anita W. Y.
Publication year - 2016
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201502202
Subject(s) - halide , perovskite (structure) , materials science , solar cell , thermal stability , evaporation , thermal , optoelectronics , chemical engineering , inorganic chemistry , chemistry , crystallography , meteorology , physics , engineering
A hole‐transport‐material‐free planar solar cell of cesium lead mixed halide perovskite (CsPbIBr 2 ) is deposited by dual source thermal evaporation for the first time, achieving an efficiency of 4.7%. The addition of iodine into the bromide lowers the bandgap resulting in wider solar spectrum absorption. Compared to the hybrid halide perovskites, CsPbIBr 2 demonstrates better thermal stability.