非稠环小分子受体材料的研究进展  

Recent Progress in Non-fused Ring Small-molecule Acceptor Materials

作　　者：孙恒 张鹏宇 张英楠 詹传郎 SUN Heng;ZHANG Pengyu;ZHANG Yingnan;ZHAN Chuanlang(Key Laboratory of Advanced Materials Chemistry and Devices(AMC&DLab)of the Department of Education of Inner Mongolia Autonomous Region,College of Chemistry and Environmental Science,Inner Mongolia Normal University,Hohhot 010022,China)

机构地区：[1]内蒙古师范大学化学与环境科学学院,先进材料化学与器件内蒙古自治区高等学校重点实验室,呼和浩特010022

出　　处：《高等学校化学学报》2023年第7期39-58,共20页Chemical Journal of Chinese Universities

基　　金：内蒙古科技攻关项目(批准号:2020GG0192);内蒙古自然科学基金(批准号:2022ZD04);内蒙古师范大学(批准号:112/1004031962);内蒙古自治区研究生教育创新计划项目(批准号:S20210274Z)资助.

摘　　要：近年来,具有刚性稠环结构的非富勒烯受体的出现促进有机太阳电池迅速发展,其光电转换效率已经突破了19%.与稠环结构受体相比,非稠环受体因其分子结构相对简单、合成步骤相对较少以及合成相对容易等优点,近年来受到了广泛关注.自2017年以来,非稠环受体材料家族已经扩展到了100个分子以上,光电转换效率也从最初的4%提高到了16%,其研究前景广阔.本综合评述根据这类分子非稠环骨架的结构特征,将其分为完全非稠环和A-D-C_(n)-D-A型非稠环两大类,从非稠环骨架和侧链两个角度来关联分子结构与材料性能及光伏性能之间的构效关系,重点聚焦非稠环骨架结构、分子内非共价相互作用及侧链结构对能级、带隙和器件性能的调控,从开路电压、短路电流和填充因子3个方面对这类材料的未来发展进行了展望.The invention of non-fullerene acceptors with rigid and fused ring structures has pushed a rapid progress in the field of organic solar cells.The power conversion efficiencies(PCEs)have exceeded 19%.Compared with the fused ring structures,the non-fused ring acceptors have recently received increasing attention due to their relatively simple structures and synthesis.Since 2017,the molecular library of non-fused ring acceptors has extended up to more than 100 molecules and the PCEs have rapidly increased from the initial 4%to the recent 16%.In this review,we classified these molecules into fully non-fused ring acceptors and A-D-Cn-D-A type non-fused ring acceptors,according to the non-fused ring backbone structural features.We correlate the molecular structures and the optical,electrochemical and photovoltaic properties from the aspects of non-fused ring backbone structures and side chain engineering.In particular,we focus on that the non-fused ring backbone structures,intramolecular non-covalent interactions and side chain engineering finely tune the materials’energy levels and bandgaps and photovoltaic performance.We also give suggestions to overcome the factors that limit the increase of solar cell performance.

关 键 词：有机太阳电池 非富勒烯 非稠环 侧链工程 非共价相互作用 

分 类 号：O646[理学—物理化学]