Modulating Crystallinity and Miscibility via Side-chain Variation Enable High Performance All-Small-Molecule Organic Solar Cells  

作　　者：Yang Wang Qunping Fan Yulong Wang Jin Fang Qi Liu Lei Zhu Jinjing Qiu Xia Guo Feng Liu Wenyan Su Maojie Zhang 

机构地区：[1]Laboratory of Advanced Optoelectronic Materials,College of Chemistry,Chemical Engineering and Materials Science,Soochow University,Suzhou,Jiangsu 215123,China [2]Department of Chemistry,City University of Hong Kong,Kowloon 999077,Hong Kong,China [3]Frontiers Science Center for Transformative Molecules,School of Chemistry and Chemical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China [4]Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications,Siyuan Laboratory,Department of Physics,Jinan University,Guangzhou,Guangdong 510632,China

出　　处：《Chinese Journal of Chemistry》2021年第8期2147-2153,共7页中国化学（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(Nos.51573120,51773142,51973146 and 21734009);the Jiangsu Provincial Natural Science Foundation(No.BK20190099);the Collaborative Innovation Center of Suzhou Nano Science&Technology,the Priority Academic Program De-velopment of Jiangsu Higher Education Institutions.Ministry of Science and Technology of China(No.2016YFA0200700).

摘　　要：Side-chain engineering as one of the most important molecular design strategies has been widely used to improve photovoltaic effi-ciency of active layer materials.Herein,a series of acceptor-n-donor-n-acceptor typed small molecule(SM)-donors(SL1,SL2,SL3,and SL4),on the basis of high-performance SM-donor BTTzR(SL1)with thiazolo[5,4-d]thiazole as the n-bridging units and 3-butylrho-danine as the terminal electron-withdrawing groups,were designed and synthesized to study the effect of the side-chain substitu-tions of BDT-T on the photovoltaic performanee.

关 键 词：Organic solar cells Small molecule donor Substituent effects AGGREGATION Solvent effects 

分 类 号：O621.2[理学—有机化学] TM914.4[理学—化学]