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A diketopyrrolopyrrole-based low bandgap polymer with enhanced photovoltaic performances through backbone twisting
Wen, Shuguang1; Chen, Weichao1; Fan, Meijie1,2; Duan, Linrui1; Qiu, Meng1; Sun, Mingliang2; Han, Liangliang1; Yang, Renqiang1
2016
发表期刊JOURNAL OF MATERIALS CHEMISTRY A
卷号4期号:46页码:18174-18180
摘要A diketopyrrolopyrrole (DPP)-based p-conjugated polymer is a very promising low band gap electron donor material for polymer solar cells. We have incorporated alkyl groups into the 4-position of the thiophene rings connected to the DPP fragment, which is proven to be beneficial for improving the open-circuit voltage (V-OC) and short-circuit current density (J(SC)). Two DPP-based polymers are synthesized with benzo[1,2-b:4,5-b']dithiophene (BDT) as the electron-donating segment. Both the polymers show good solubility, slightly wide optical band gaps and deep HOMO energy levels when incorporating the alkyl groups. Heterojunction solar cells are fabricated with polymer:PC71BM as the active layer. V-OC and J(SC) are simultaneously enhanced compared to the device performance of traditional DPP-BDT alternating polymers. A power conversion efficiency (PCE) of 8.11% was obtained, which indicates that rational utilization of backbone torsion is a promising strategy to improve the photovoltaic performance.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1039/c6ta08130d
关键词[WOS]POWER CONVERSION EFFICIENCY ; OPEN-CIRCUIT VOLTAGE ; HETEROJUNCTION SOLAR-CELLS ; THIN-FILM TRANSISTORS ; SINGLE-JUNCTION ; TANDEM POLYMER ; MOLECULAR-ORIENTATION ; CURRENT-DENSITY ; COPOLYMERS
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(21202181 ; Department of Science and Technology of Shandong Province(ZR2015EQ002 ; Qingdao Institute of Bioenergy and Bioprocess Technology Director Innovation Foundation for Young Scientists(QIBEBT-DIFYS-201507) ; 51503219 ; 2015GGX104007) ; 51573205 ; 61405209)
WOS类目Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号WOS:000388505400032
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/9108
专题先进有机功能材料研究组
作者单位1.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
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Wen, Shuguang,Chen, Weichao,Fan, Meijie,et al. A diketopyrrolopyrrole-based low bandgap polymer with enhanced photovoltaic performances through backbone twisting[J]. JOURNAL OF MATERIALS CHEMISTRY A,2016,4(46):18174-18180.
APA Wen, Shuguang.,Chen, Weichao.,Fan, Meijie.,Duan, Linrui.,Qiu, Meng.,...&Yang, Renqiang.(2016).A diketopyrrolopyrrole-based low bandgap polymer with enhanced photovoltaic performances through backbone twisting.JOURNAL OF MATERIALS CHEMISTRY A,4(46),18174-18180.
MLA Wen, Shuguang,et al."A diketopyrrolopyrrole-based low bandgap polymer with enhanced photovoltaic performances through backbone twisting".JOURNAL OF MATERIALS CHEMISTRY A 4.46(2016):18174-18180.
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