D-A Copolymers Based on a Pentacyclic Acceptor Unit and a 3,3′-Difluoro2,2′-bithiophene for Solar Cells

被引：4

作者：

Cao, Jia-min ^{[1
]}

Qian, Liu ^{[1
]}

He, Dan ^{[1
]}

Xiao, Zuo ^{[1
]}

Ding, Li-ming ^{[1
]}

机构：

[1] Chinese Acad Sci, Natl Ctr Nanosci & Technol, Key Lab Nanosyst & Hierarch Fabricat, Ctr Excellence Nanosci, Beijing 100190, Peoples R China

来源：

CHINESE JOURNAL OF POLYMER SCIENCE | 2017年 / 35卷 / 12期

基金：

中国国家自然科学基金;

关键词：

D-A copolymers; Fluorination; Open-circuit voltage; Polymer solar cells; PHOTOVOLTAIC APPLICATIONS; BUILDING-BLOCK; POLYMER; PERFORMANCE; AGGREGATION; EFFICIENCY;

D O I：

10.1007/s10118-017-1996-4

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A D-A copolymer, P2FBTTPTI, was developed by copolymerizing a pentacyclic acceptor unit, thieno[2',3':5,6]pyrido[3,4-g]thieno[3,2-c]isoquinoline-5,11(4H,10H)-dione (TPTI), with 3,3'-difluoro-2,2'-bithiophene (2FBT). P2FBTTPTI possessed a low highest occupied molecular orbital (HOMO) energy level (-5.50 eV) and a good hole mobility (4.14 x 10(-4) cm(2).V-1.s(-1)). P2FBTTPTI:PC71BM solar cells gave a decent power conversion efficiency (PCE) of 7.64% and a high open-circuit voltage (V-oc) of 0.95 V.

引用

页码：1457 / 1462

页数：6

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