A pentacyclic S,N-heteroacene based electron acceptor with strong near-infrared absorption for efficient organic solar cells

被引：23

作者：

Chen, Xiaohan ^{[1
]}

Liu, Hao ^{[1
]}

Xia, Lixing ^{[1
]}

Hayat, Tasawar ^{[2
]}

Alsaedi, Ahmed ^{[2
]}

Tan, Zhan'ao ^{[1
,3
]}

机构：

[1] North China Elect Power Univ, State Key Lab Alternate Elect Power Syst Renewabl, Beijing 102206, Peoples R China

[2] King Abdulaziz Univ, Fac Sci, NAAM Res Grp, Jeddah 21589, Saudi Arabia

[3] Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Beijing 100029, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2019年 / 55卷 / 49期

基金：

中国国家自然科学基金;

关键词：

ENERGY-LEVEL MODULATION; PERFORMANCE; FLUORINE; ATOM;

D O I：

10.1039/c9cc03536b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel non-fullerene acceptor-donor-acceptor (A-D-A) structured small molecule acceptor material with fused ring N-alkyl dithieno[3,2-b:2 ',3 '-d]pyrrole (DTP) as the central donor unit and ((2-(5,6-difluoro-)3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile) (EG-2F) as the terminal acceptor units, named DTP-C-17-4F, was designed and synthesized. DTP-C-17-4F demonstrates strong near-infrared absorption, suitable energy levels, a good film morphology and high electron mobility, resulting in an outstanding short-circuit current density of 21.17 mA cm(-2) without additives for organic photovoltaics.

引用

页码：7057 / 7060

页数：4

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