Benzo[1,2-b:4,5-b′]dithiophene and benzotriazole based small molecule for solution-processed organic solar cells

被引：43

作者：

Chen, Yanhua ^{[1
,2
]}

Du, Zhengkun ^{[1
]}

Chen, Weichao ^{[1
]}

Liu, Qian ^{[1
,2
]}

Sun, Liang ^{[1
]}

Sun, Mingliang ^{[2
]}

Yang, Renqiang ^{[1
]}

机构：

[1] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China

[2] Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China

来源：

ORGANIC ELECTRONICS | 2014年 / 15卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Small molecule; Solution-processed; High open-circuit voltage; Organic solar cells; Benzo[1,2-b:4,5-b '] dithiophene; Benzotriazole; POWER CONVERSION EFFICIENCY; OPEN-CIRCUIT VOLTAGE; POLYMER; BENZODITHIOPHENE; DONOR; COPOLYMERS; BENZOTHIADIAZOLE; AREA; UNIT;

D O I：

10.1016/j.orgel.2013.11.034

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel deep HOMO A(1)-pi-A(2)-D-A(2)-pi-A(1) type molecule (D(CATBTzT)BDT), which terminal electron-withdrawing octyl cyanoacetate group is connected to a benzo[1,2-b:4,5-b'] dithiophene (BDT) core through another electron-accepting benzotriazole block, has been synthesized, characterized, and employed as electron donor material for small molecule organic solar cells (SM-OSCs). By simple solution spin-coating fabrication process, D(CATBTzT) BDT/PC61BM based OSCs exhibit a power conversion efficiency (PCE) of 3.61% with a high open-circuit voltage of 0.93 V. The D(CATBTzT) BDT based solar cells device also can show high FF of 72% with PCEs of 2.31% which is one of the best FF results for solution-processed SM-OSCs. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：405 / 413

页数：9

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