Efficient polymer solar cells based on terpolymers with a broad absorption range of 300-900 nm

被引：49

作者：

Huang, Yuanshuai

Zhang, Min

Chen, Huajie

Wu, Fen

Cao, Zhencai

Zhang, Lingjun

Tan, Songting ^{[1
]}

机构：

[1] Xiangtan Univ, Coll Chem, Key Lab Environm Friendly Chem & Applicat, Minist Educ, Xiangtan 411105, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2014年 / 2卷 / 15期

关键词：

POWER CONVERSION EFFICIENCY; CONJUGATED SIDE-GROUPS; PHOTOVOLTAIC PROPERTIES; COPOLYMERS; DIKETOPYRROLOPYRROLE; PERFORMANCE; ACCEPTOR; CHAINS; BENZODITHIOPHENE; MORPHOLOGY;

D O I：

10.1039/c4ta00020j

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：

Three novel random conjugated terpolymers were designed and synthesized by copolymerizing a benzo [1,2-b: 4,5-b'] dithiophene (BDT) donor with an electron-deficient diketopyrrolo[3,4-c]pyrrole (DPP) unit and a thiophene-vinylene-dithienyl-benzothiadiazole (TVDTBT) side group into a polymer backbone. By tuning the ratio of DPP and TVDTBT in the terpolymers, the optical properties and energy levels of these random terpolymers could be rationally controlled. As a result, the terpolymers exhibited a very broad absorption range of 300-900 nm with a high absorption coefficient and deep HOMO energy levels. Bulk heterojunction polymer solar cells fabricated from P3 and PC61BM exhibited a promising power conversion efficiency of 5.29% without any processing additives.

引用

页码：5218 / 5223

页数：6

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