Benzodithiophene-Based Small-Molecule Donors for Next-Generation All-Small-Molecule Organic Photovoltaics

被引：88
作者：
Tang, Hua [1 ,2 ,3 ]
Yan, Cenqi [3 ]
Huang, Jiaming [3 ]
Kan, Zhipeng [1 ]
Xiao, Zeyun [1 ]
Sun, Kuan [4 ]
Li, Gang [3 ]
Lu, Shirong [1 ]
机构：
[1] Chinese Acad Sci, Thin Film Solar Technol Res Ctr, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Hong Kong Polytech Univ, Res Inst Smart Energy RISE, Dept Elect & Informat Engn, Hung Hom,Kowloon, Hong Kong, Peoples R China
[4] Chongqing Univ, Sch Power Engn, Key Lab Low Grade Energy Utilizat Technol & Syst, Minist Educ, Chongqing 400044, Peoples R China
来源：
MATTER | 2020年 / 3卷 / 05期
基金：
中国国家自然科学基金;
关键词：
POLYMER SOLAR-CELLS; POWER CONVERSION EFFICIENCY; PROCESSED SMALL-MOLECULE; NON-FULLERENE; HIGHLY EFFICIENT; PERFORMANCE; ACCEPTOR; OLIGOTHIOPHENES; OPTIMIZATION; ALKYLTHIENYL;
D O I：
10.1016/j.matt.2020.09.001
中图分类号：
T [工业技术];
学科分类号：
08 ;
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.
引用
收藏
页码：1403 / 1432
页数：30
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