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Subphthalocyanine Triimides: Solution Processable Bowl-Shaped Acceptors for Bulk Heterojunction Solar Cells

Author:
Huang, Xiaoshuai, Hu, Ming, Zhao, Xiaohong, Li, Chao, Yuan, Zhongyi, Liu, Xia, Cai, Chunsheng, Zhang, Youdi, Hu, Yu, Chen, Yiwang
Source:
Organic letters 2019 v.21 no.9 pp. 3382-3386
ISSN:
1523-7052
Subject:
chemical reactions, chemical structure, energy, organic compounds, solar cells, solubility
Abstract:
Ten subphthalocyanine triimides (SubPcTI) with different substituents at imide sites and B atoms were designed and synthesized. These compounds with low-lying lowest unoccupied molecular orbital energy levels (from −3.91 to −3.98 eV), strong absorption in the range of 450–650 nm, and adjustable solubility are expected to be excellent electron acceptors. Non-fullerene bulk heterojunction organic solar cells based on acceptor 8c showed power conversion efficiency of 4.92%, which is the highest value among subphthalocyanine derivatives.
Agid:
6397660