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Benzodithiophene-Based Small-Molecule Donors for Next-Generation All-Small-Molecule Organic Photovoltaics
Tang, Hua1,2,3; Yan, Cenqi3; Huang, Jiaming3; Kan, Zhipeng1; Xiao, Zeyun1; Sun, Kuan4; Li, Gang3; Lu, Shirong1
2020-11-04
摘要Organic solar cells (OSCs) have been considered being a promising candidate for next-generation photovoltaic technology because of their low carbon footprint, short energy payback time, and facile manufacture into lightweight, flexible, and semitransparent products. In this prosperous field, there is a rising trend of developing all-small-molecule (ASM) OSCs due to the distinct merits of small molecules, such as well-defined structures, facile purification, and pre-eminent batch-to-batch replicability, making it a preferential contender for industrialization. The majority of the best-performing ASM OSCs utilize benzodithiophene (BDT) donors, and recent breakthroughs demonstrate that this system has exceeded the 15% efficiency mark in the laboratory. This review analyzes the significant study that has led to this remarkable progress and focuses on the most effective BDT small-molecule donors. The pivotal structure-property relationships, donor-acceptor matching criteria, and morphology control approaches are discussed. Lastly, we summarize the remaining challenges and offer our perspective on the future advance of ASM OSCs.
DOI10.1016/j.matt.2020.09.001
发表期刊MATTER
ISSN2590-2393
卷号3期号:5页码:1403-1432
通讯作者Yan, Cenqi(cenqi.cq.yan@polyu.edu.hk) ; Li, Gang(gang.w.li@polyu.edu.hk) ; Lu, Shirong(lushirong@cigit.ac.cn)
收录类别SCI
WOS记录号WOS:000588450600011
语种英语