Engineering of Push-Pull Thiophene Dyes to Enhance Light Absorption and Modulate Charge Recombination in Mesoscopic Solar Cells
文献类型：期刊论文
| 作者 | Cai, Ning; Wang, Yinglin; Xu, Mingfei; Fan, Ye; Li, Renzhi; Zhang, Min; Wang, Peng |
| 刊名 | ADVANCED FUNCTIONAL MATERIALS
 |
| 出版日期 | 2013-04-12 |
| 卷号 | 23期号:14页码:1846-1854 |
| 关键词 | Dye-sensitized Solar Cells Push-pull Dye Thiophene Electron Transfer Microstructures |
| ISSN号 | 1616-301X |
| DOI | 10.1002/adfm.201202562 |
| 英文摘要 | The elaborate selection of diverse -conjugated segments which bridge the electron donors and acceptors in organic push-pull dyes can not only tune the molecular energy-levels but also impact the interfacial energetics and kinetics of dye-sensitized solar cells (DSCs). In this paper, a series of triphenylamine-cyanoacrylic acid photosensitizers is reported with TT, EDOT-BT, EDOT-CPDT, and CPDT-EDOT (herein TT, EDOT, BT, and CPDT denote terthiophene, ethylenedioxythiophene, bithiophene, and cyclopentadithiophene, respectively) as the -linkers, and the dye-structure correlated photocurrent and photovoltage features of DSCs based on a cobalt electrolyte are scrutinized via analyzing light absorption and multichannel charge transfer kinetics. Both stepwise incorporation of more electron-rich blocks and rational modulation of connection order of dissimilar segments can result in a negative movement of ground-state redox potential and a red-shift of the absorption peak. While these styles of reducing energy-gap do not exert too much influence on the electron injection from photoexcited dye molecules to titania, the dyestuff employing the EDOT-BT linker presents a faster interfacial charge recombination and a slower dye regeneration, accounting for its inferior cell efficiency of 5.3% compared to that of 9.4% at the AM1.5G conditions achieved by the CPDT-EDOT dye. |
| 语种 | 英语 |
| WOS记录号 | WOS:000317293100016 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/46271]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Cai, Ning |
| 作者单位 | Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, Ning,Wang, Yinglin,Xu, Mingfei,et al. Engineering of Push-Pull Thiophene Dyes to Enhance Light Absorption and Modulate Charge Recombination in Mesoscopic Solar Cells[J]. ADVANCED FUNCTIONAL MATERIALS,2013,23(14):1846-1854. |
| APA | Cai, Ning.,Wang, Yinglin.,Xu, Mingfei.,Fan, Ye.,Li, Renzhi.,...&Wang, Peng.(2013).Engineering of Push-Pull Thiophene Dyes to Enhance Light Absorption and Modulate Charge Recombination in Mesoscopic Solar Cells.ADVANCED FUNCTIONAL MATERIALS,23(14),1846-1854. |
| MLA | Cai, Ning,et al."Engineering of Push-Pull Thiophene Dyes to Enhance Light Absorption and Modulate Charge Recombination in Mesoscopic Solar Cells".ADVANCED FUNCTIONAL MATERIALS 23.14(2013):1846-1854. |
入库方式： OAI收割
来源：化学研究所
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