A General Approach toward Electron Deficient Triazole Units to Construct Conjugated Polymers for Solar Cells

被引：74

作者：

Li, Wentao ^{[1
]}

Yan, Liang ^{[1
]}

Zhou, Huaxing ^{[1
]}

You, Wei ^{[1
,2
]}

机构：

[1] Univ N Carolina, Dept Chem, Chapel Hill, NC 27599 USA

[2] Univ N Carolina, Dept Appl Phys Sci, Chapel Hill, NC 27599 USA

来源：

CHEMISTRY OF MATERIALS | 2015年 / 27卷 / 18期

基金：

美国国家科学基金会;

关键词：

RATIONAL DESIGN; PERFORMANCE; EFFICIENCY; SUBSTITUENTS; TRANSISTORS; HOLE;

D O I：

10.1021/acs.chemmater.5b03098

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：

Triazole based structural units have been widely used to construct conjugated polymers for optoelectronic applications; yet the design and synthesis of such units have been limited to just a few known examples. We report a general yet versatile synthetic approach toward a diverse set of triazole based conjugated molecules bearing various electron accepting abilities. The structural differences of as-synthesized three new triazole acceptors have a significant impact on the optoelectronic properties of conjugated polymers incorporating these triazoles. Bulk heterojunction solar cells based on one of these new polymers, PyCNTAZ, feature a high open circuit voltage of -1 V and a notable efficiency of 8.4% with an active layer thickness around 300 nm.

引用

收藏

页码：6470 / 6476

页数：7

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