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Effects of fluorination position on all-polymer organic solar cells

文献类型：期刊论文

作者Yang, Qianguang1,2; Yu, Weiyang1,2; Lv, Jie1,2; Huang, Peihao1,2; He, Guotian1,2; Xiao, Zeyun1,2; Kan, Zhipeng1,2; Lu, Shirong1,2
刊名DYES AND PIGMENTS
出版日期2022-04-01
卷号200页码:7
关键词All-polymer solar cells Fused ring electron acceptor Transient photocurrent Difluorothiophene
ISSN号0143-7208
DOI10.1016/j.dyepig.2022.110180
通讯作者Xiao, Zeyun(xiao.z@cigit.ac.cn) ; Kan, Zhipeng(kanzhipeng@cigit.ac.cn) ; Lu, Shirong(lushirong@cigit.ac.cn)
英文摘要In organic solar cells, fluorination has a great influence on the performance of non-fullerene acceptors, however there are very few studies on the effects of fluorination position on polymerized small molecule acceptors. In this article, two polymer acceptor materials (PAL1 and PAL2) with different fluorine substitution positions are investigated to study the influence of fluorinated forms on polymerized small molecule acceptor materials and the all-polymer solar cell performance. The end group fluorinated polymer acceptor material PAL1 and the pi-bridge fluorinated polymer acceptor material PAL2 have similar absorption spectra and energy levels. While the blend film based on the polymer donor PM6:PAL1 has smaller roughness, finer phase separation, and tighter molecular packing, compared to the blend film of PM6:PAL2. Thus PM6:PAL1-based all-polymer organic solar cells (all-PSCs) have longer carrier life, faster carrier mobilities, and less bimolecular recombination.These polymer properties can simultaneously enhance the Jsc and FF of PM6:PAL1 based devices, finally achieving a device efficiency of 13.53%, which is significantly better than PM6:PAL2 based devices (9.16%). More importantly, the device based on PM6:PAL1 has excellent stability. When stored in a nitrogen atmosphere for 90 days, the PCE attenuation is only 4.2%. This work enriches the types of polymer acceptor materials and provides new ideas for the design of high-performance all-PSCs.
资助项目National Natural Science Foundation of China[22071238] ; National Natural Science Foundation of China[61805245] ; Chongqing Talents:Exceptional Young Talents Project[CQYC201905057] ; CAS Pioneer Hundred Talents Program B[Y92A010Q10] ; CAS Pioneer Hundred Talents Program[E0296102] ; Chongqing Funds for Distinguished Young Scientists[cstc2020jcyj-jqX0018] ; General Program of National Natural Science Foundation of China[62074149] ; artificial intelligence key project of Chongqing[cstc2017rgzn-zdyfX0030]
WOS研究方向Chemistry ; Engineering ; Materials Science
语种英语
WOS记录号WOS:000783126900003
出版者ELSEVIER SCI LTD
源URL[http://119.78.100.138/handle/2HOD01W0/15554]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Xiao, Zeyun; Kan, Zhipeng; Lu, Shirong
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Univ Chinese Acad Sci UCAS Chongqing, Chongqing Sch, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Qianguang,Yu, Weiyang,Lv, Jie,et al. Effects of fluorination position on all-polymer organic solar cells[J]. DYES AND PIGMENTS,2022,200:7.
APA Yang, Qianguang.,Yu, Weiyang.,Lv, Jie.,Huang, Peihao.,He, Guotian.,...&Lu, Shirong.(2022).Effects of fluorination position on all-polymer organic solar cells.DYES AND PIGMENTS,200,7.
MLA Yang, Qianguang,et al."Effects of fluorination position on all-polymer organic solar cells".DYES AND PIGMENTS 200(2022):7.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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