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Carbon–Oxygen‐Bridged Ladder‐Type Building Blocks for Highly Efficient Nonfullerene Acceptors
Author(s) -
Xiao Zuo,
Yang Shangfeng,
Yang Zhou,
Yang Junliang,
Yip HinLap,
Zhang Fujun,
He Feng,
Wang Tao,
Wang Jizheng,
Yuan Yongbo,
Yang Huai,
Wang Mingkui,
Ding Liming
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.201804790
Subject(s) - organic solar cell , acceptor , materials science , carbon fibers , small molecule , electron acceptor , nanotechnology , photochemistry , chemistry , physics , polymer , biochemistry , composite number , composite material , condensed matter physics
Recently, acceptor–donor–acceptor (A–D–A) small molecules have emerged as promising nonfullerene acceptors (NFAs) for organic solar cells and have attracted great attention. The carbon‐bridged (C‐bridged) ladder‐type D unit plays a crucial role in developing high‐performance A–D–A NFAs. However, the medium electron‐donating capability of C‐bridged units is unfavorable for making NFAs with strong light‐harvesting capability. In this regard, carbon–oxygen‐bridged (CO‐bridged) ladder‐type units present advantages in developing strong light‐absorbing NFAs. Here, recent progress in the newly emerging CO‐bridged NFAs is highlighted. The synthetic methods for the polycyclic CO‐bridged building blocks are introduced. The photovoltaic performance for CO‐bridged NFAs is summarized and discussed. Perspectives on developing high‐performance CO‐bridged‐NFA‐based solar cells are made.