A Highly Planar Nonfullerene Acceptor with Multiple Noncovalent Conformational Locks for Efficient Organic Solar Cells

被引：40

作者：

Yang, Lei ^{[1
,2
]}

Gu, Wenxing ^{[3
]}

Yang, Yufei ^{[1
,2
]}

Hong, Ling ^{[1
,2
]}

Zhang, Xutao ^{[1
,2
]}

Xiao, Yu ^{[1
,2
]}

Wu, Xiaoxi ^{[1
,2
]}

Peng, Aidong ^{[1
,2
]}

Huang, Hui ^{[1
,2
]}

机构：

[1] Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 101408, Peoples R China

[2] Univ Chinese Acad Sci, CAS Key Lab Vacuum Phys, Beijing 101408, Peoples R China

[3] Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, Beijing 101408, Peoples R China

来源：

SMALL METHODS | 2018年 / 2卷 / 05期

关键词：

noncovalent conformational locks; nonfullerene acceptor; organic solar cells; FIELD-EFFECT TRANSISTORS; RING ELECTRON-ACCEPTOR; POLYMER; PERFORMANCE; FULLERENES; ENABLES; DESIGN; AGGREGATION; ENHANCEMENT; MORPHOLOGY;

D O I：

10.1002/smtd.201700330

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel nonfullerene small-molecular acceptor indacenodithiophene (IDT)-4CN is designed and synthesized with IDT as the core and benzothiadiazole and dicyanoethxylrhodanine as end-capping groups. Multiple noncovalent conformational locks N center dot center dot center dot S, C-H center dot center dot center dot O, and C-H center dot center dot center dot N are introduced into the backbone, resulting in a highly planar molecular acceptor. As a result, the IDT-4CN-based organic solar cells exhibit a power conversion efficiency of 8.13%, which is much higher than that of PC71BM-based devices (6.19%). A novel method is thus demonstrated to construct highly planar molecular acceptors for organic solar cells.

引用

页数：8

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