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Acceptor-rich bulk heterojunction polymer solar cells with balanced charge mobilities
Zhu, Tingting1,2; Zhang, Yongchao1; Li, Yonghai1; Song, Xin2; Liu, Zhe2; Wen, Shuguang1; Bao, Xichang1; Sun, Mingliang2; Yang, Renqiang1
2017-12-01
Source PublicationORGANIC ELECTRONICS
Volume51Pages:16-24
AbstractIn this work, we reported efficient polymer solar cells with balanced hole/electron mobilities tuned by the acceptor content in bulk heterojunction blend films. The photovoltaic cells were fabricated with two new wide band-gap D-A polymers PBDDIDT and PBDDIDTT as the donor material. The molecular conformations of new polymers are carefully evaluated by theoretical calculations. The results of photovoltaic studies show that two devices reach their optimal conditions with rich PC71BM content up to 80% in blend films, which is uncommon with most of reported PSCs. The as-cast devices based on PBDDIDT and PBDDIDTT reveal good photovoltaic performance with PCE of 7.04% and 6.40%, respectively. The influence of PC71BM content on photovoltaic properties is further detailed studied by photoluminescence emission spectra, charge mobilities and heterojunction morphology. The results exhibit that more efficient charge transport between donor and acceptor occurs in rich PC71BM blend films. Meanwhile, the hole and electron mobilities are simultaneously enhanced and afford a good balance in rich PC71BM blend films (D/A, 1: 4) which is critical for the improvement of current density and fill factors. (C) 2017 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordWide Band-gap Acceptor-rich Blend Polymer Solar Cells Balanced Charge Mobilities
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.orgel.2017.08.031
WOS KeywordPOWER CONVERSION EFFICIENCY ; SMALL-MOLECULE ACCEPTOR ; OPEN-CIRCUIT VOLTAGE ; HIGH-PERFORMANCE ; CONJUGATED POLYMER ; PHOTOVOLTAIC PERFORMANCE ; ELECTRON-ACCEPTORS ; ALKYL CHAINS ; DONOR ; COPOLYMERS
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Physics
Funding OrganizationNational Natural Science Foundation of China(21502205 ; Ministry of Science and Technology of China(2016YFE0115000) ; China Postdoctoral Science Foundation(2016T90656) ; 51573205)
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000418101600004
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/9825
Collection先进有机功能材料团队
Affiliation1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China
2.Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China
Recommended Citation
GB/T 7714
Zhu, Tingting,Zhang, Yongchao,Li, Yonghai,et al. Acceptor-rich bulk heterojunction polymer solar cells with balanced charge mobilities[J]. ORGANIC ELECTRONICS,2017,51:16-24.
APA Zhu, Tingting.,Zhang, Yongchao.,Li, Yonghai.,Song, Xin.,Liu, Zhe.,...&Yang, Renqiang.(2017).Acceptor-rich bulk heterojunction polymer solar cells with balanced charge mobilities.ORGANIC ELECTRONICS,51,16-24.
MLA Zhu, Tingting,et al."Acceptor-rich bulk heterojunction polymer solar cells with balanced charge mobilities".ORGANIC ELECTRONICS 51(2017):16-24.
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