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Efficiency Improvement of All-Small-Molecule Organic Solar Cells Through Fused-Aromatic-Ring Side-Chained Donors

文献类型：期刊论文

作者Hu, Chao1; Xu, Jingjing1; Cai, Songming1,2; Huang, Peihao1; Oh, Jiyeon4; Yang, Changduk4; Chen, Shanshan3; Sun, Kuan3; Yang, Ke1; Lu, Shirong1
刊名SOLAR RRL
出版日期2021-10-19
页码10
关键词benzothiophene organic photovoltaics organic solar cells small-molecule donors
ISSN号2367-198X
DOI10.1002/solr.202100705
通讯作者Hu, Chao(huchao@cigit.ac.cn) ; Yang, Ke(yangke@cigit.ac.cn) ; Lu, Shirong(lushirong@cigit.ac.cn)
英文摘要Side-chain engineering influences the organic solar cell (OSC) devices active layer morphology fundamentally and it is an efficient strategy to improve device performances. A novel small molecular donor with conjugated fused-aromatic-ring side chain on a benzo[1,2-b:4,5-b ']dithiophene core is developed. To the best of our knowledge, this is the first example where fused-aromatic-ring units are being utilized as conjugated side chains to extend the conjugation system of small molecular donor materials. The material property, OSC device performance, active layer morphology, and photovoltaic mechanism are investigated. This molecular design strategy has proven to be effective in fine-tuning and enhancing the molecular stacking/orientation and phase separation, which led to the enhanced charge separation and transportation, suppressed charge recombination, and as a result, devices with an improved short-circuit current density of 24.9 mA cm(-2), fill factor of 69.9%, and power conversion efficiency of 13.6% are achieved. The results reveal that a fused-aromatic-ring utilized as conjugated side chain strategy can potentially be an effective way for molecular rational design, aiming to improve the OSC performances.
资助项目National Youth Thousand Program Project[R52A199Z11] ; Chongqing Funds for Distinguished Young Scientists[cstc2020jcyj-jqX0018] ; Chongqing talent plan[CQYC201903008] ; Natural Science Foundation of Chongqing[cstc2020jcyj-msxmX0202] ; Technology Innovation and Application Development Key Project of Chongqing[cstc2019jscx-mbdxX0017]
WOS研究方向Energy & Fuels ; Materials Science
语种英语
WOS记录号WOS:000708732500001
出版者WILEY-V C H VERLAG GMBH
源URL[http://119.78.100.138/handle/2HOD01W0/14302]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Hu, Chao; Yang, Ke; Lu, Shirong
作者单位1.Chinese Acad Sci, Univ Chinese Acad Sci UCAS Chongqing, Chongqing Sch, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
2.Chongqing Univ Technol, Sch Mat Sci & Engn, Chongqing 400054, Peoples R China
3.Chongqing Univ, Key Lab Low Grade Energy Utilizat Technol & Syst, Sch Energy & Power Engn, CQUNUS Renewable Energy Mat & Devices Joint Lab, Chongqing 400044, Peoples R China
4.Ulsan Natl Inst Sci & Technol UNIST, Low Dimens Carbon Mat Ctr, Perovtron Res Ctr, Sch Energy & Chem Engn,Dept Energy Engn, Ulsan 44919, South Korea
推荐引用方式
GB/T 7714		 Hu, Chao,Xu, Jingjing,Cai, Songming,et al. Efficiency Improvement of All-Small-Molecule Organic Solar Cells Through Fused-Aromatic-Ring Side-Chained Donors[J]. SOLAR RRL,2021:10.
APA Hu, Chao.,Xu, Jingjing.,Cai, Songming.,Huang, Peihao.,Oh, Jiyeon.,...&Lu, Shirong.(2021).Efficiency Improvement of All-Small-Molecule Organic Solar Cells Through Fused-Aromatic-Ring Side-Chained Donors.SOLAR RRL,10.
MLA Hu, Chao,et al."Efficiency Improvement of All-Small-Molecule Organic Solar Cells Through Fused-Aromatic-Ring Side-Chained Donors".SOLAR RRL (2021):10.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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