Donor-acceptor(D-A)terpolymers based on alkyl-DPP and t-BocDPP moieties for polymer solar cells  

作　　者：Fateh Ullah Sun Qian Weitao Yang Muhammad Naeem Shah Zhongqiang Zhang Hongzheng Chen Chang-Zhi Li 

机构地区：[1]MOE Key Laboratory of Macromolecular Synthesis and Functionalization,State Key Laboratory of Silicon Materials,Department of Polymer Science andEngineering,Zhejiang University,Hangzhou 310027,China

出　　处：《Chinese Chemical Letters》2017年第12期2223-2226,共4页中国化学快报（英文版）

基　　金：funded by the National Natural Science Foundation of China(Nos.21674093 and 51620105006);973 program(No.2014CB643503);International Science and Technology Cooperation Program of China(No.2016YFE0102900);support by Zhejiang Natural Science Fund for Distinguished Young Scholars(No.LR17E030001);the Young 1000 Talents Global Recruitment Program of China;100 Talents Program of Zhejiang University

摘　　要：A series of low band gap terpolymers based on 4,8-bis（5-（2-ethylhexyl）thiophen-2-yl）benzo[l,2-b：4,5- b＇]dithiophene （BDTr） and diketopyrrolopyrrole （DPP） with varied solubilizing groups （i.e., tert- butoxycarbonyl, t-Boc and 2-octyldodecyl） are developed as electron donors for bulk heterojunction （BHJ） polymer solar cells （PSCs）. The results reveal that the one with 50% t-Boc concentration （P3） performs better than the other terpolymers used in this study in conventional PSC devices with a power conversion efficiency of 2.92%.A series of low band gap terpolymers based on 4,8-bis（5-（2-ethylhexyl）thiophen-2-yl）benzo[l,2-b：4,5- b＇]dithiophene （BDTr） and diketopyrrolopyrrole （DPP） with varied solubilizing groups （i.e., tert- butoxycarbonyl, t-Boc and 2-octyldodecyl） are developed as electron donors for bulk heterojunction （BHJ） polymer solar cells （PSCs）. The results reveal that the one with 50% t-Boc concentration （P3） performs better than the other terpolymers used in this study in conventional PSC devices with a power conversion efficiency of 2.92%.

关 键 词：Conjugated polymerOrganic semiconductorPolymer solar cellsBulk heterojunctionDiketopyrrolopyrrole 

分 类 号：O631[理学—高分子化学] TM914.4[理学—化学]