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题名

Polymer solar cells with enhanced fill factors

作者
通讯作者Chen, Lin X.
发表日期
2013-10
DOI
发表期刊
ISSN
1749-4885
卷号7期号:10页码:825-833
摘要
Recent advances in polymer solar cell (PSC) performance have resulted from compressing the bandgap to enhance the short-circuit current while lowering the highest occupied molecular orbital to increase the open-circuit voltage. Nevertheless, PSC power conversion efficiencies are still constrained by low fill factors, typically below 70%. Here, we report PSCs with exceptionally high fill factors by combining complementary materials design, synthesis, processing and device engineering strategies. The donor polymers, PTPD3T and PBTI3T, when incorporated into inverted bulk-heterojunction PSCs with a PC71BM acceptor, result in PSCs with fill factors of 76-80%. The enhanced performance is attributed to highly ordered, closely packed and properly oriented active-layer microstructures with optimal horizontal phase separation and vertical phase gradation. The result is efficient charge extraction and suppressed bulk and interfacial bimolecular recombination. The high fill factors yield power conversion efficiencies of up to 8.7% from polymers with suboptimal bandgaps, suggesting that efficiencies above 10% should be realizable by bandgap modification.
相关链接[来源记录]
收录类别
SCI ; EI
语种
英语
重要成果
NI期刊 ; ESI高被引
学校署名
其他
资助项目
Junta de Andalucia[PO9-4708]
WOS研究方向
Optics ; Physics
WOS类目
Optics ; Physics, Applied
WOS记录号
WOS:000325003100017
出版者
EI入藏号
20134116837340
EI主题词
Conversion efficiency ; Efficiency ; Energy gap ; Heterojunctions ; Molecular orbitals ; Open circuit voltage ; Phase separation ; Polymers
EI分类号
Energy Conversion Issues:525.5 ; Thermodynamics:641.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Physical Chemistry:801.4 ; Polymeric Materials:815.1 ; Production Engineering:913.1
来源库
Web of Science
引用统计
被引频次[WOS]:856
成果类型期刊论文
条目标识符http://kc.sustech.edu.cn/handle/2SGJ60CL/30311
专题工学院_材料科学与工程系
作者单位
1.Northwestern Univ, Dept Chem, Evanston, IL 60208 USA
2.Northwestern Univ, Argonne Northwestern Solar Energy Res Ctr, Mat Res Ctr, Evanston, IL 60208 USA
3.South Univ Sci & Technol China, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
4.Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA
5.Univ Malaga, Dept Phys Chem, E-29071 Malaga, Spain
6.Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA
7.Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA
8.Polyera Corp, Skokie, IL 60077 USA
第一作者单位材料科学与工程系
推荐引用方式
GB/T 7714
Guo, Xugang,Zhou, Nanjia,Lou, Sylvia J.,et al. Polymer solar cells with enhanced fill factors[J]. Nature Photonics,2013,7(10):825-833.
APA
Guo, Xugang.,Zhou, Nanjia.,Lou, Sylvia J..,Smith, Jeremy.,Tice, Daniel B..,...&Marks, Tobin J..(2013).Polymer solar cells with enhanced fill factors.Nature Photonics,7(10),825-833.
MLA
Guo, Xugang,et al."Polymer solar cells with enhanced fill factors".Nature Photonics 7.10(2013):825-833.
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Guo-2013-Polymer sol(2072KB)----限制开放--
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