高等学校化学学报2023，Vol.44Issue(9)：201-208,8.DOI:10.7503/cjcu20230180
小分子给体桥联单元烷基链取代位置对光伏器件性能的影响
Effect of Substitution Positions of Alkyl Chains in Small Molecular Donor Bridged Units on the Performance of Photovoltaic Devices
摘要
Abstract
Two isomeric small molecule donors,C2-C-F and C2-M-F,with only the different substitution positions of the alkyl chains on the intermediate bridged trithiophene units,were designed and synthesized.It was found that the alkyl chain substitution position has little effect on their absorptions and energy levels,but has a significant impact on the morphology of the active layers when blended with the acceptor BTP-4F-12.Better morphology was obtained for the active layer based on small molecule donor C2-C-F,and an efficiency of 12.84%was achieved for the C2-C-F-based photovoltaic device.This result indicates that the morphology of the active layer can be finely regulated through the alkyl substitution positions,providing a useful avenue for the design of efficient small molecule donors.关键词
全小分子有机太阳能电池/烷基链/小分子给体Key words
All-small-molecule organic solar cell/Alkyl chain/Small molecule donor分类
化学化工引用本文复制引用
郭子琦,焦灿灿,吴思敏,孟令贤,孙延娜,柯鑫,万相见,陈永胜..小分子给体桥联单元烷基链取代位置对光伏器件性能的影响[J].高等学校化学学报,2023,44(9):201-208,8.基金项目
国家自然科学基金(批准号:52025033,21935007,52203245)和中国博士后创新人才支持计划(批准号:BX20220274)资助.Supported by the National Natural Science Foundation of China(Nos.52025033,21935007 and 52203245)and the China Postdoctoral Innovative Talent Support Program(No.BX20220274). （批准号:52025033,21935007,52203245）
