高等学校化学学报2023，Vol.44Issue(9)：242-252,11.DOI:10.7503/cjcu20230271
基于双噻吩酰亚胺聚合物给体的侧链调控与光伏性能研究
Alkyl Chain Engineering of Bithiophene Imide-based Polymer Donor for Organic Solar Cells
摘要
Abstract
Two polymer donor materials,namely pBDT-BTI-EH and pBDT-BTI-ME,were synthesized by copoly-merizing benzodithiophene(BDT)unit with bithiophene imide(BTI)unit containing 2-ethylhexyl and methyl alkyl side chains,respectively.Compared to pBDT-BTI-EH∶Y6 based organic solar cells(OSCs),the pBDT-BTI-ME∶Y6-based device exhibited higher charge mobilities,reduced charge recombination,more efficient exciton dissociation,and favorable film morphology,which leaded to increased short current density(Jsc),fill factor(FF)and thus a significant improvement in power conversion efficiency(PCE)from 9.31%to 15.69%.关键词
有机太阳电池/聚合物给体/双噻吩酰亚胺/侧链调控Key words
Organic solar cell/Polymer donor/Bithiophene imide/Alkyl chain engineering分类
化学化工引用本文复制引用
白原青,张佳滨,刘春晨,胡志诚,张凯,黄飞..基于双噻吩酰亚胺聚合物给体的侧链调控与光伏性能研究[J].高等学校化学学报,2023,44(9):242-252,11.基金项目
国家重点研发计划项目(批准号:2019YFA0705900)、广东省基础与应用基础研究重点项目(批准号:2019B030302007)、国家自然科学基金(批准号:U21A6002)和粤港澳光电磁功能材料联合实验室(批准号:2019B121205002)资助.Supported by the National Key Research and Development Program of China(No.2019YFA0705900),the Basic and Applied Basic Research Major Program of Guangdong Province,China(No.2019B030302007),the National Natural Science Foundation of China(No.U21A6002)and the Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials,China(No.2019B121205002). （批准号:2019YFA0705900）
