A heptacyclic acceptor unit developed for D-A copolymers used in polymer solar cells

被引：19

作者：

Cao, Jiamin ^{[1
]}

Qian, Liu ^{[1
]}

Ding, Liming ^{[1
]}

机构：

[1] Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China

来源：

POLYMER CHEMISTRY | 2016年 / 7卷 / 05期

基金：

中国国家自然科学基金;

关键词：

PHOTOVOLTAIC PROPERTIES; CONJUGATED POLYMERS; BUILDING-BLOCK;

D O I：

10.1039/c5py01761k

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Thiophene rings in the pentacyclic unit TPTI were replaced with thieno[3,2-b] thiophene moieties to produce a new fused-ring acceptor unit TTP. A D-A copolymer PBDTTTP was synthesized via copolymerizing TTP and benzo[1,2-b:4,5-b'] dithiophene (BDT). PBDTTTP possessed an optical bandgap of 2.11 eV, a deep HOMO level of -5.43 eV, and partial crystallinity. PBDTTTP: PC71BM solar cells gave a PCE of 5.53%, and the maximum V-oc reached 1 V.

引用

页码：1027 / 1030

页数：4

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