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Hybrid Cathode Interlayer Enables 17.4% Efficiency Binary Organic Solar Cells

文献类型：期刊论文

作者Song, Hang1,2; Hu, Dingqin1,3,4; Lv, Jie1,4; Lu, Shirong1,4; Haiyan, Chen1,3,4; Kan, Zhipeng1,4
刊名ADVANCED SCIENCE
出版日期2022-01-18
页码7
关键词cathode interlayer charge transfer hybrid interface organic solar cells
DOI10.1002/advs.202105575
通讯作者Lu, Shirong(lushirong@cigit.ac.cn) ; Haiyan, Chen(chenhaiyan@cigit.ac.cn) ; Kan, Zhipeng(kanzhipeng@cigit.ac.cn)
英文摘要With the emergence of fused ring electron acceptors, the power conversion efficiency of organic solar cells reached 19%. In comparison with the electron donor and acceptor materials progress, the development of cathode interlayers lags. As a result, charge extraction barriers, interfacial trap states, and significant transport resistance may be induced due to the unfavorable cathode interlayer, limiting the device performances. Herein, a hybrid cathode interlayer composed of PNDIT-F3N and PDIN is adopted to investigate the interaction between the photoexcited acceptor and cathode interlayer. The state of art acceptor Y6 is chosen and blended with PM6 as the active layer. The device with hybrid interlayer, PNDIT-F3N:PDIN (0.6:0.4, in wt%), attains a power conversion efficiency of 17.4%, outperforming devices with other cathode interlayer such as NDI-M, PDINO, and Phen-DPO. It is resulted from enhanced exciton dissociation, reduced trap-assisted recombination, and smaller transfer resistance. Therefore, the hybrid interlayer strategy is demonstrated as an efficient approach to improve device performance, shedding light on the selection and engineering of cathode interlayers for pairing the increasing number of fused ring electron acceptors.
资助项目National Natural Science Foundation of China[61805245] ; National Natural Science Foundation of China[22109157] ; 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] ; Natural Science Foundation of Chongqing[cstc2019jcyj-msxmX0400] ; Natural Science Foundation of Chongqing[cstc2021jcyj-msxm0139] ; Youth Innovation Promotion Association Chinese Academy of Sciences[2020379]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000743517000001
出版者WILEY
源URL[http://119.78.100.138/handle/2HOD01W0/14929]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Lu, Shirong; Haiyan, Chen; Kan, Zhipeng
作者单位1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
2.Chongqing Univ Technol, Coll Mat Sci & Engn, Chongqing 400054, Peoples R China
3.Chongqing Univ, 174 Shazhengjie, Chongqing 400044, Peoples R China
4.Univ Chinese Acad Sci UCAS Chongqing, Chongqing Sch, Chongqing 400714, Peoples R China
推荐引用方式
GB/T 7714		 Song, Hang,Hu, Dingqin,Lv, Jie,et al. Hybrid Cathode Interlayer Enables 17.4% Efficiency Binary Organic Solar Cells[J]. ADVANCED SCIENCE,2022:7.
APA Song, Hang,Hu, Dingqin,Lv, Jie,Lu, Shirong,Haiyan, Chen,&Kan, Zhipeng.(2022).Hybrid Cathode Interlayer Enables 17.4% Efficiency Binary Organic Solar Cells.ADVANCED SCIENCE,7.
MLA Song, Hang,et al."Hybrid Cathode Interlayer Enables 17.4% Efficiency Binary Organic Solar Cells".ADVANCED SCIENCE (2022):7.

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来源：重庆绿色智能技术研究院

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