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Employing Lead Thiocyanate Additive to Reduce the Hysteresis and Boost the Fill Factor of Planar Perovskite Solar Cells
Author(s) -
Ke Weijun,
Xiao Chuanxiao,
Wang Changlei,
Saparov Bayrammurad,
Duan HsinSheng,
Zhao Dewei,
Xiao Zewen,
Schulz Philip,
Harvey Steven P.,
Liao Weiqiang,
Meng Weiwei,
Yu Yue,
Cimaroli Alexander J.,
Jiang ChunSheng,
Zhu Kai,
AlJassim Mowafak,
Fang Guojia,
Mitzi David B.,
Yan Yanfa
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201600594
Subject(s) - materials science , perovskite (structure) , passivation , grain boundary , hysteresis , grain size , planar , perovskite solar cell , solar cell , thiocyanate , chemical engineering , inorganic chemistry , composite material , optoelectronics , condensed matter physics , microstructure , layer (electronics) , physics , computer graphics (images) , computer science , engineering , chemistry
Lead thiocyanate in the perovskite precursor can increase the grain size of a perovskite thin film and reduce the conductivity of the grain boundaries, leading to perovskite solar cells with reduced hysteresis and enhanced fill factor. A planar perovskite solar cell with grain boundary and interface passivation achieves a steady‐state efficiency of 18.42%.