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Polymer Assisted Small Molecule Hole Transport Layers Toward Highly Efficient Inverted Perovskite Solar Cells (Solar RRL 11∕2018)
Author(s) -
Li Wang,
Liu Changwen,
Li Yunlong,
Kong Weiguang,
Wang Xingzhu,
Chen Hong,
Xu Baomin,
Cheng Chun
Publication year - 2018
Publication title -
solar rrl
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.544
H-Index - 37
ISSN - 2367-198X
DOI - 10.1002/solr.201870228
Subject(s) - perovskite (structure) , materials science , polymer , energy conversion efficiency , layer (electronics) , champion , small molecule , transport layer , optoelectronics , molecule , nanotechnology , chemistry , composite material , crystallography , political science , law , organic chemistry , biochemistry
In article no. 1800173 , Baomin Xu and Chun Cheng describe an effective strategy for introducing a polymer‐assisted small molecule layer as a hole transport layer to develop highly efficient inverted perovskite solar cells, in which the champion device exhibits a power conversion efficiency of >21%. A much smoother surface for the mixed hole transport layer and largely reduced charge recombination is obtained, and the energy level alignment is more matched with that of the perovskite.