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 |
DOI | 10.1039/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 |
推荐引用方式 GB/T 7714 | 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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