Isomerism: Minor Changes in the Bromine Substituent Positioning Lead to Notable Differences in Photovoltaic Performance  

作　　者：Huan Wang Liang Han Jiadong Zhou Tao Liu Daize Mo Hui Chen Haijian Lai Nan Zheng Zengqi Xie Wenhua Zheng Feng He 

机构地区：[1]Department of Chemistry,Shenzhen Grubbs Institute,Southern University of Science and Technology,Shenzhen 518055 [2]Faculty of Health Sciences,University of Macao,Macao 999078 [3]State Key Laboratory of Luminescent Materials and Devices,Institute of Polymer Optoelectronic Materials and Devices,South China University of Technology,Guangzhou 510640 [4]Guangdong Provincial Key Laboratory of Catalysis,Southern University of Science and Technology,Shenzhen 518055

出　　处：《CCS Chemistry》2021年第9期2591-2601,共11页中国化学会会刊（英文）

基　　金：supported by the National Natural Science Foundation of China(nos.51773087,21733005,and 21975115);Shenzhen Fundamental Research Program(nos.JCYJ20170817111214740,JCYJ20180302180238419,and KQJSCX20180319114442157),and Shenzhen Nobel Prize Scientists Laboratory Project(no.C17213101);and the Guangdong Innovative and Entrepreneurial Research Team Program under contract no.2016ZT06G587.

摘　　要：An isomerism strategy was employed to develop single,end‐group bromine-substituted non‐fullerene two isomeric acceptors,2,2′-((2Z,2′Z)-((12,13-bis(2-ethylhexyl)-3,9-diundecyl-12,13-dihydro-[1,2,5]thiadiazolo[3,4-e]thieno[2,"3′′:4′,5′]thieno[2′,3′:4,5]pyrrolo[3,2-g]thieno[2′,3′:4,5]thieno[3,2-b]indole-2,10-diyl)bis(methanylylidene))bis(4-bromo-3-oxo-2,3-dihydro-1H-inden-1-ylidene)dimalononitrile(BTIC-2Br-β)and 2,2′-((2Z,2′Z)-((12,13-bis(2-ethylhexyl)-3,9-diundecyl-12,13-dihydro-[1,2,5]thiadiazolo[3,4-e]thieno[2,"3′′:4′,5′]thieno[2′,3′:4,5]pyrrolo[3,2-g]thieno[2′,3′:4,5]thieno[3,2-b]indole-2,10-diyl)bis(methanylylidene))bis(5-bromo-3-oxo-2,3-dihydro-1Hinden-1-ylidene)dimalononitrile(BTIC-2Br-γ).

关 键 词：BROMINATION ISOMERISM MISCIBILITY fused-ring electron acceptor 3D network 

分 类 号：O62[理学—有机化学]