文献类型：期刊文献

英文题名：Combining chlorination and sulfuration strategies for high-performance all-small-molecule organic solar cells

作者：Zhou, Ruimin Yang, Chen Zou, Wenjun Adil, Muhammad Abdullah Li, Huan Lv, Min Huang, Ziyun Lv, Menglan Zhang, Jianqi Lu, Kun Wei, Zhixiang

第一作者：Zhou, Ruimin

通信作者：Zou, WJ[1];Lu, K[1];Lv, ML[2]

机构：[1]Natl Ctr Nanosci & Technol, CAS Ctr Excellence Nanosci, CAS Key Lab Nanosyst & Hierarch Fabricat, Beijing 100190, Peoples R China;[2]Univ Chinese Acad Sci, Beijing 100049, Peoples R China;[3]Univ Chinese Acad Sci, Sino Danish Coll, Sino Danish Ctr Educ & Res, Beijing 100190, Peoples R China;[4]Univ Copenhagen, Nanosci Ctr, DK-2100 Copenhagen, Denmark;[5]Univ Copenhagen, Dept Chem, DK-2100 Copenhagen, Denmark;[6]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Guizhou, Peoples R China

第一机构：Natl Ctr Nanosci & Technol, CAS Ctr Excellence Nanosci, CAS Key Lab Nanosyst & Hierarch Fabricat, Beijing 100190, Peoples R China

通信机构：corresponding author), Natl Ctr Nanosci & Technol, CAS Ctr Excellence Nanosci, CAS Key Lab Nanosyst & Hierarch Fabricat, Beijing 100190, Peoples R China;corresponding author), Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Guizhou, Peoples R China.|贵州理工学院化学工程学院;贵州理工学院;

年份：2021

卷号：52

起止页码：228-233

外文期刊名：JOURNAL OF ENERGY CHEMISTRY

收录：;EI(收录号：20202108699860);Scopus(收录号：2-s2.0-85084977121);WOS:【SCI-EXPANDED(收录号:WOS:000595239600008)】；

基金：The authors acknowledge the financial support from the National Natural Science Foundation of China (Grant Nos. 21822503, 51973043, 21534003, 21721002, 51863002 and 51973042), the Ministry of Science and Technology of China (Grant No. 2016YFA0200700), Youth Innovation Promotion Association, K. C. Wong Education Foundation, and the Chinese Academy of Sciences.

语种：英文

外文关键词：All-small-molecule; Chlorination and sulfuration; Fibrous morphology; Crystallinity

摘要：Three small-molecule donors based on dithieno[2,3-d:2',3'-d']-benzo[1,2-b:4,5-b'] dithiophene (DTBDT) unit were designed and synthesized by side chain regulation with chlorinated or/and sulfurated substitutions (namely ZR1, ZR1-Cl, and ZR1-S-Cl respectively), along with a crystalline non-fullerene acceptor IDIC-4Cl with a chlorinated 1,1-dicyanomethylene-3-indanone (IC) end group. Energy levels, molar extinction coefficients and crystallinities of three donor molecules can be effectively altered by combining chlorination and sulfuration strategies. Especially, the ZR1-S-Cl exhibited the best absorption ability, lowest higher occupied molecular orbital (HOMO) energy level and highest crystallinity among three donors, resulting in the corresponding all-small-molecule organic solar cells to produce a high power conversion efficiency (PCE) of 12.05% with IDIC-4Cl as an acceptor. (c) 2020 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.