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
收藏
页码：405 / 413
页数：9
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