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Benzodithiophene-based two-dimensional polymers with extended conjugated thienyltriphenylamine substituents for high-efficiency polymer solar cells
Fan, Qunping1; Liu, Yu1; Yang, Pingao1; Su, Wenyan1; Xiao, Manjun1; Chen, Jianhua1; Li, Min1; Wang, Xiangdong1; Wang, Yafei1; Tan, Hua1; Yang, Renqiang2; Zhu, Weiguo1
2015-08-01
发表期刊ORGANIC ELECTRONICS
卷号23页码:124-132
摘要Two novel donor-acceptor (D-A)-type two-dimensional (2-D) polymers of PTTPABDT-DTBT and PTTPABDT-DFDTBT were synthesized and characterized, in which extended conjugated side chained 4-thienyltriphenylamine benzo[1,2-b: 4,5-b'] dithiophene (TTPABDT) as the donor unit, thiophene (T) as the p-bridge, benzo[c][1,2,5] thiadiazole (BT) and 5,6-difluorobenzo[c][1,2,5] thiadiazole (DFBT) as the acceptor units. Due to the introduction of the extended conjugated side chained TTPA, polymers exhibited good thermal stabilities, broad absorption spectra and narrow optical band gaps. The hole mobility of 2.15 x 10(-4) cm(2) V-1 s(-1) was obtained in the PTTPABDT-DFDTBT/PC71BM blended film, which is two times higher than that of the PTTPABDT-DTBT/PC71BM blended film. Finally, the PTTPABDT-DFDTBT/PC71BM-based polymer solar cells presented the best power conversion efficiency (PCE) of 4.29% with a fill factor (FF) of 62.5%, while PTTPABDT-DTBT-based devices shown a PCE of 3.92% with a FF of 58.8%. The results indicate that the introduction of the extended conjugated TTPA side chain into the D-A-type 2-D polymers is an efficient approach to improve photovoltaic performances for its resulting polymers. (C) 2015 Elsevier B.V. All rights reserved.
文章类型Article
关键词Extended Conjugated Side Chain Benzo[1 Two-dimensional 2-b: 4 Thienyltriphenylamine 5-b ']Dithiophene Polymer Solar Cells
WOS标题词Science & Technology ; Technology ; Physical Sciences
DOI10.1016/j.orgel.2015.04.013
关键词[WOS]POWER CONVERSION EFFICIENCY ; PHOTOVOLTAIC PERFORMANCE ; FLUORINATED BENZOTHIADIAZOLE ; SEMICONDUCTING POLYMERS ; MOLECULAR DESIGN ; COPOLYMERS ; LEVEL ; 1,2-B4,5-B' ; BITHIENYL ; IMPROVE
收录类别SCI
语种英语
WOS研究方向Materials Science ; Physics
WOS类目Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号WOS:000354575700019
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/6485
专题先进有机功能材料团队
作者单位1.Xiangtan Univ, Coll Chem, Key Lab Environm Friendly Chem & Applicat, Minist Educ, Xiangtan 411105, Peoples R China
2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
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Fan, Qunping,Liu, Yu,Yang, Pingao,et al. Benzodithiophene-based two-dimensional polymers with extended conjugated thienyltriphenylamine substituents for high-efficiency polymer solar cells[J]. ORGANIC ELECTRONICS,2015,23:124-132.
APA Fan, Qunping.,Liu, Yu.,Yang, Pingao.,Su, Wenyan.,Xiao, Manjun.,...&Zhu, Weiguo.(2015).Benzodithiophene-based two-dimensional polymers with extended conjugated thienyltriphenylamine substituents for high-efficiency polymer solar cells.ORGANIC ELECTRONICS,23,124-132.
MLA Fan, Qunping,et al."Benzodithiophene-based two-dimensional polymers with extended conjugated thienyltriphenylamine substituents for high-efficiency polymer solar cells".ORGANIC ELECTRONICS 23(2015):124-132.
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