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Synthesis and characterization of D-A-A type regular terpolymers with narrowed band-gap and their application in high performance polymer solar cells
Dang, Dongfeng1,2; Wang, Xiaochi1; Zhi, Ying1; Meng, Lingjie1; Bao, Xichang3; Yang, Renqiang3; Zhu, Weiguo2
2016-05-01
发表期刊ORGANIC ELECTRONICS
卷号32期号:1页码:237-243
摘要

Two novel D-A-A type regular terpolymers of PBDT-DTQ and PIDT-DTQ were designed and synthesized, in which benzodithiophene and indacenodithiophene building blocks were employed as the D unit, and quinoxaline building block was introduced as the A unit. Owing to the strong intra-molecular charge transfer effect in polymer backbone, much broader absorption spectra covering from 320 to 800 nm with the narrowed band-gap were obtained for the developed D-A-A type polymers in contrast to their corresponding D-A type polymers. On the other hand, compared with PBDT-DTQ, PIDT-DTQ exhibited a deeper HOMO energy level and also higher charge carrier mobility. To investigate the photovoltaic properties of PBDT-DTQ and PIDT-DTQ in detail, bulk hetero-junction polymer solar cells with a structure of ITO/PEDOT: PSS/Active Layer/Ca/Al were fabricated. PBDT-DTQ-based solar cells exhibited a moderate PCE value of 3.84%, however, an increased J(sc) of 11.42 mA/cm(2), V-oc of 0.86 V and FF of 65.77% was achieved for PIDT-DTQ-based device, leading to the maximum PCE up to 6.41%. Our results here demonstrated that using the regular terpolymers as electron donor materials could be an efficient way to broaden the absorption of polymers and improve the photovoltaic performance of PSCs. (C) 2016 Elsevier B.V. All rights reserved.

文章类型Article
关键词D-a-a Type Polymers Regular Terpolymers Narrowed Band-gap Polymer Solar Cells Quinoxaline
WOS标题词Science & Technology ; Technology ; Physical Sciences
DOI10.1016/j.orgel.2016.02.021
关键词[WOS]POWER CONVERSION EFFICIENCY ; PHOTOVOLTAIC PERFORMANCE ; CONJUGATED POLYMERS ; RATIONAL DESIGN ; COPOLYMERS ; QUINOXALINE ; DIKETOPYRROLOPYRROLE ; INDACENODITHIOPHENE ; BRIDGES
收录类别SCI
语种英语
WOS研究方向Materials Science ; Physics
项目资助者Major Program for Cultivation of the National Natural Science Foundation of China(91233112) ; National Natural Science Foundation of China(21172187 ; Natural Science Foundation of Hunan(14JJ4019) ; Innovation Group and Xiangtan Joint Project of Hunan Natural Science Foundation(12JJ7002 ; Research Foundation of Education Bureau of Hunan Province(13A102 ; China Postdoctoral Science Foundation(2015M582648) ; 51403178 ; 12JJ8001) ; 14C1099) ; 51273168 ; 21202139)
WOS类目Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号WOS:000373092500035
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/8250
专题先进有机功能材料研究组
作者单位1.Xi An Jiao Tong Univ, Sch Sci, Xian 710049, Peoples R China
2.Xiangtan Univ, Dept Chem, Key Lab Environm Friendly Chem & Applicat, Minist Educ, Xiangtan 411105, Peoples R China
3.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
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Dang, Dongfeng,Wang, Xiaochi,Zhi, Ying,et al. Synthesis and characterization of D-A-A type regular terpolymers with narrowed band-gap and their application in high performance polymer solar cells[J]. ORGANIC ELECTRONICS,2016,32(1):237-243.
APA Dang, Dongfeng.,Wang, Xiaochi.,Zhi, Ying.,Meng, Lingjie.,Bao, Xichang.,...&Zhu, Weiguo.(2016).Synthesis and characterization of D-A-A type regular terpolymers with narrowed band-gap and their application in high performance polymer solar cells.ORGANIC ELECTRONICS,32(1),237-243.
MLA Dang, Dongfeng,et al."Synthesis and characterization of D-A-A type regular terpolymers with narrowed band-gap and their application in high performance polymer solar cells".ORGANIC ELECTRONICS 32.1(2016):237-243.
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