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Wide bandgap copolymers with vertical benzodithiophene dicarboxylate for high-performance polymer solar cells with an efficiency up to 7.49%
Tao, Qiang1,2; Liu, Tao4; Duan, Linrui1,3; Cai, Yufeng1; Xiong, Wenjing1,2; Wang, Pu1; Tan, Hua1; Lei, Gangtie1; Pei, Yong1; Zhu, Weiguo1,2; Yang, Renqiang3; Sun, Yanming4
2016
发表期刊JOURNAL OF MATERIALS CHEMISTRY A
卷号4期号:48页码:18792-18803
摘要In aiming to build novel wide band-gap high-performance photovoltaic donor materials, a vertical benzo[1,2-b:4,5-b']dithiophene-2,6-dicarboxylate (V-BDTC) with a weak electron-withdrawing character was primarily developed. And its wide band-gap (WBG) copolymers PV-BDTC1 and PV-BDTC2 were designed and synthesized, which contain a traditional electron-donating unit of 4,8-disubstituted benzo[1,2-b: 4,5-b'] dithiophene (BDT) derivative with diethylhexyloxy for the former and diethylhexylthiophenyl for the latter. It is found that the weak electron-withdrawing V-BDTC unit endows its copolymers with a WBG up to 2.09 eV and a deep HOMO energy level of similar to 5.67 eV. Furthermore, PV-BDTC2 exhibits much better photovoltaic properties than PV-BDTC1 in the solution-processing polymer solar cells (PSCs) with a higher open-circuit voltage (V-oc) of 1.03 V and an increased power conversion efficiency (PCE) of 7.49%. To the best of our knowledge, this PCE value is the highest level recorded for copolymers with a WBG over 2.0 eV in the PSCs to date, along with a remarkable V-oc over 1.0 V. This work provides a feasible strategy to develop a novel promising electron-withdrawing building block and its high-performance WBG copolymers based on the BDT unit.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1039/c6ta07364f
关键词[WOS]OPEN-CIRCUIT VOLTAGE ; PHOTOVOLTAIC PERFORMANCE ; CONJUGATED POLYMERS ; SMALL MOLECULES ; SUBSTITUTED BENZODITHIOPHENE ; OPTICAL-PROPERTIES ; UNIT ; QUINOXALINE ; DEVICES ; CHAINS
收录类别SCI
语种英语
WOS研究方向Chemistry ; Energy & Fuels ; Materials Science
项目资助者National Natural Science Foundation of China(51673031 ; International Science & Technology Cooperation Program of China(2014DFA-52820) ; Program for Innovative Research Cultivation Team in University of Ministry of Education of China(1337304) ; Natural Science Foundation of Hunan(2015JJ 3113 ; Open Project for the National Key Laboratory of Luminescent Materials and Devices(2014-skllmd-10) ; Research Foundation of Hunan Education Bureau(13A102 ; Hunan Postgraduate Science Foundation for Innovation(CX2014B257 ; 91233112 ; 14JJ4019) ; YB2015B025 ; CX2015B201) ; 21172187 ; 14C1099) ; 51403178)
WOS类目Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号WOS:000390433700017
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/9201
专题先进有机功能材料研究组
作者单位1.Xiangtan Univ, Minist Educ, Key Lab Environm Friendly Chem & Applicat, Coll Chem, Xiangtan 411105, Peoples R China
2.Changzhou Univ, Jiangsu Collaborat Innovat Ctr Photovolta Sci & E, Sch Mat Sci & Engn, Changzhou 213164, Peoples R China
3.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
4.Beihang Univ, Heeger Beijing Res & Dev Ctr, Sch Chem & Environm, Beijing 100191, Peoples R China
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GB/T 7714
Tao, Qiang,Liu, Tao,Duan, Linrui,et al. Wide bandgap copolymers with vertical benzodithiophene dicarboxylate for high-performance polymer solar cells with an efficiency up to 7.49%[J]. JOURNAL OF MATERIALS CHEMISTRY A,2016,4(48):18792-18803.
APA Tao, Qiang.,Liu, Tao.,Duan, Linrui.,Cai, Yufeng.,Xiong, Wenjing.,...&Sun, Yanming.(2016).Wide bandgap copolymers with vertical benzodithiophene dicarboxylate for high-performance polymer solar cells with an efficiency up to 7.49%.JOURNAL OF MATERIALS CHEMISTRY A,4(48),18792-18803.
MLA Tao, Qiang,et al."Wide bandgap copolymers with vertical benzodithiophene dicarboxylate for high-performance polymer solar cells with an efficiency up to 7.49%".JOURNAL OF MATERIALS CHEMISTRY A 4.48(2016):18792-18803.
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