Carbon-Oxygen-Bridged Ladder-Type Building Blocks for Highly Efficient Nonfullerene Acceptors

Zuo Xiao; Shangfeng Yang; Zhou Yang; Junliang Yang; Hin-Lap Yip; Fujun Zhang; Feng He; Tao Wang; Jizheng Wang; Yongbo Yuan; Huai Yang; Mingkui Wang; Liming Ding

doi:10.1002/adma.201804790

Carbon-Oxygen-Bridged Ladder-Type Building Blocks for Highly Efficient Nonfullerene Acceptors

Adv Mater. 2019 Nov;31(45):e1804790. doi: 10.1002/adma.201804790. Epub 2018 Oct 31.

Authors

Zuo Xiao¹, Shangfeng Yang², Zhou Yang³, Junliang Yang⁴, Hin-Lap Yip⁵, Fujun Zhang⁶, Feng He⁷, Tao Wang⁸, Jizheng Wang⁹, Yongbo Yuan⁴, Huai Yang¹⁰, Mingkui Wang¹¹, Liming Ding¹

Affiliations

¹ Center for Excellence in Nanoscience (CAS), Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing, 100190, China.
² Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, 230026, China.
³ Department of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
⁴ School of Physics & Electronics, Central South University, Changsha, 410083, China.
⁵ State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China.
⁶ Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing, 100044, China.
⁷ Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China.
⁸ School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China.
⁹ Laboratory of Organic Solids (CAS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
¹⁰ College of Engineering, Peking University, Beijing, 100871, China.
¹¹ Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China.

PMID: 30379357
DOI: 10.1002/adma.201804790

Abstract

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.

Keywords: carbon-oxygen bridges; ladder-type building blocks; nonfullerene acceptors; organic solar cells.

Publication types

Review

Abstract

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