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From Lead Halide Perovskites to Lead‐Free Metal Halide Perovskites and Perovskite Derivatives
Author(s) -
Xiao Zewen,
Song Zhaoning,
Yan Yanfa
Publication year - 2019
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.201803792
Subject(s) - halide , perovskite (structure) , materials science , lead (geology) , solar cell , perovskite solar cell , metal , photovoltaic system , inorganic chemistry , nanotechnology , chemistry , optoelectronics , metallurgy , organic chemistry , ecology , geomorphology , biology , geology
Despite the exciting progress on power conversion efficiencies, the commercialization of the emerging lead (Pb) halide perovskite solar cell technology still faces significant challenges, one of which is the inclusion of toxic Pb. Searching for Pb‐free perovskite solar cell absorbers is currently an attractive research direction. The approaches used for and the consequences of Pb replacement are reviewed herein. Reviews on the theoretical understanding of the electronic, optical, and defect properties of Pb and Pb‐free halide perovskites and perovskite derivatives are provided, as well as the experimental results available in the literature. The theoretical understanding explains well why Pb halide perovskites exhibit superior photovoltaic properties, but Pb‐free perovskites and perovskite derivatives do not.