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Stability Issue of Perovskite Solar Cells under Real‐World Operating Conditions
Author(s) -
Wu Mian,
Haji Ladi Najib,
Yi Zijun,
Li Hao,
Shen Yan,
Wang Mingkui
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.201900744
Subject(s) - perovskite (structure) , passivation , materials science , photovoltaics , photovoltaic system , energy conversion efficiency , halide , nanotechnology , thermal stability , chemical engineering , engineering physics , optoelectronics , chemistry , inorganic chemistry , layer (electronics) , electrical engineering , engineering
Organic–inorganic lead halide perovskites solar cells (PSCs) show great potential in the photovoltaic system, reaching overall power conversion efficiencies (PCE) up to 25.2%. The rapid increase of PCE in PSCs has made them the rising star of the photovoltaics world, with great interest to the academic community. Long‐term stability under working environments remains a significant challenge for the commercialization of PSCs, particularly those using inorganic–organic halide lead perovskite absorbers. In this regard, only the devices that can maintain long‐term stability under conditions of temperature, humidity, and UV irradiation can be called stable solar cells. This Review highlights the sources for the chemical instability problems in conventional CH 3 NH 3 PbI 3 ‐based perovskite solar cells from humidity instability, phase instability, thermal instability, and ion migration. In pursuit of highly stable PSCs, this article also discusses the strategies to stabilize PSCs through both external and internal aspects without sacrificing the PCE, specifically including additive engineering with surface passivation and composition engineering.