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A New Nonfullerene Electron Acceptor with a Ladder Type Backbone for High‐Performance Organic Solar Cells
Author(s) -
Qiu Nailiang,
Zhang Huijing,
Wan Xiangjian,
Li Chenxi,
Ke Xin,
Feng Huanran,
Kan Bin,
Zhang Hongtao,
Zhang Qiang,
Lu Yan,
Chen Yongsheng
Publication year - 2017
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.201604964
Subject(s) - organic solar cell , fluorene , materials science , acceptor , energy conversion efficiency , electron acceptor , core (optical fiber) , small molecule , photochemistry , optoelectronics , polymer , chemistry , physics , composite material , condensed matter physics , biochemistry
Nonfullerene acceptor FDICTF (2,9‐bis(2methylene‐(3‐(1,1‐dicyanomethylene)indanone))‐7,12‐dihydro‐4,4,7,7,12,12‐hexaoctyl‐4 H ‐cyclopenta[2″,1″:5,6;3″,4″:5′,6′]diindeno[1,2‐ b :1′,2′‐ b ′]dithiophene) modified by fusing the fluorene core in a precursor, yields 10.06% high power conversion efficiency, and demonstrates that the ladder and fused core backbone in A–D–A structure molecules is an effective design strategy for high‐performance nonfullerene acceptors.