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The Improved Efficiency of Polymer Solar Cells by Fluorine Atoms at Ortho-Position of Alkxoyphenyl Group in Benzodithiophene (BDT) Units
Shen, Wenfei1; Tang, Jianguo1; Wang, Ning2; Wang, Yao1; Liu, Jixian; Huang, Linjun1; Wang, Jiuxing1; Wang, Yanxin1; Wang, Wei1; Yang, Renqiang2; Belfiore, Laurence A.1,3
2017-07-01
Source PublicationINTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
Volume12Issue:7Pages:6676-6693
AbstractIn this article, two novel donor polymers containing fluorine atoms at ortho-position of alkxoyphenyl group in benzodithiophene (BDT) units are constructed. Compared with the reference polymer(P1) without fluorine atom, the polymers with fluorine atoms (P2 and P3) show their great different electrochemical properties, optical properties, morphology and hole mobility. Most significant change is their photovoltaic performances. The devices formed by P2 and P3 show much higher power conversion efficiency (PCE), 5.44% and 6.12%, respectively. The reasons should be that the incorporation of fluorine atom at ortho-position of alkoxyphenyl side chains increases the oxidation potential, decreases the highest occupied molecular orbit (HOMO) level of donor polymers, and thus increases the open circuit voltage (Voc) in device. Moreover, the linear hexyl side chain of P3 causes much higher PCE because it generates better molecular aggregation and hole transport in device.
SubtypeArticle
KeywordNew Donor Materials Fluorine Atom Incorporation Increase Oxidation Potential Better Molecular Aggregation Polymer Solar Cell
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.20964/2017.07.07
WOS KeywordCONVERSION EFFICIENCY ; PERFORMANCE
Indexed BySCI
Language英语
WOS Research AreaElectrochemistry
Funding OrganizationNational One-Thousand Foreign Expert Program(WQ20123700111) ; Program for Introducing Talents of Discipline to Universities ("111" plan) ; Natural Scientific Foundation of China(51373081 ; State Key Project of International Cooperation Research(2016YFE0110800) ; 51473082 ; 51273096 ; 51603109 ; 51503112)
WOS SubjectElectrochemistry
WOS IDWOS:000406090700070
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/9595
Collection先进有机功能材料研究组
Affiliation1.Qingdao Univ, Natl Base Int Sci & Tech Cooperat Hybrid Mat, Acad Hybrid Mat, 308 Ningxia Rd, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, 189 Songling Rd, Qingdao 266101, Peoples R China
3.Colorado State Univ, Dept Chem & Biol Engn, Ft Collins, CO 80523 USA
Recommended Citation
GB/T 7714
Shen, Wenfei,Tang, Jianguo,Wang, Ning,et al. The Improved Efficiency of Polymer Solar Cells by Fluorine Atoms at Ortho-Position of Alkxoyphenyl Group in Benzodithiophene (BDT) Units[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2017,12(7):6676-6693.
APA Shen, Wenfei.,Tang, Jianguo.,Wang, Ning.,Wang, Yao.,Liu, Jixian.,...&Belfiore, Laurence A..(2017).The Improved Efficiency of Polymer Solar Cells by Fluorine Atoms at Ortho-Position of Alkxoyphenyl Group in Benzodithiophene (BDT) Units.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,12(7),6676-6693.
MLA Shen, Wenfei,et al."The Improved Efficiency of Polymer Solar Cells by Fluorine Atoms at Ortho-Position of Alkxoyphenyl Group in Benzodithiophene (BDT) Units".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 12.7(2017):6676-6693.
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