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All‐Inorganic CsPbX 3 Perovskite Solar Cells: Progress and Prospects
Author(s) -
Zhang Jingru,
Hodes Gary,
Jin Zhiwen,
Liu Shengzhong Frank
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201901081
Subject(s) - halide , perovskite (structure) , photovoltaic system , energy conversion efficiency , materials science , nanotechnology , caesium , chemical engineering , optoelectronics , inorganic chemistry , chemistry , electrical engineering , engineering
Recently, lead halide‐based perovskites have become one of the hottest topics in photovoltaic research because of their excellent optoelectronic properties. Among them, organic‐inorganic hybrid perovskite solar cells (PSCs) have made very rapid progress with their power conversion efficiency (PCE) now at 23.7 %. However, the intrinsically unstable nature of these materials, particularly to moisture and heat, may be a problem for their long‐term stability. Replacing the fragile organic group with more robust inorganic Cs + cations forms the cesium lead halide system (CsPbX 3 , X is halide) as all‐inorganic perovskites which are much more thermally stable and often more stable to other factors. From the first report in 2015 to now, the PCE of CsPbX 3 ‐based PSCs has abruptly increased from 2.9 % to 17.1 % with much enhanced stability. In this Review, we summarize the field up to now, propose solutions in terms of development bottlenecks, and attempt to boost further research in CsPbX 3 PSCs.