Electrical and photophysical analyses on the impacts of arylamine electron donors in cyclopentadithiophene dye-sensitized solar cells
文献类型：期刊论文
| 作者 | Xu, Mingfei1,2; Zhou, Difei1,2; Cai, Ning1,2; Liu, Jingyuan1; Li, Renzhi1; Wang, Peng1 |
| 刊名 | ENERGY & ENVIRONMENTAL SCIENCE
 |
| 出版日期 | 2011-11-01 |
| 卷号 | 4期号:11页码:4735-4742 |
| ISSN号 | 1754-5692 |
| DOI | 10.1039/c1ee02432a |
| 英文摘要 | The electron donor of a D-pi-A dye is known for its capability to tune both the electronic trait and packing mode of dye molecules chemisorbed on titania nanocrystals of dye-sensitized solar cells (DSCs), bringing on the opportunity to impact cell performance by modulating the physicochemical characteristics at the titania/dye/electrolyte interface. In this paper, we scrutinize the influences of arylamine electron donors on the optoelectronic features of thin-film DSCs employing a tris(1,10-phenanthroline) cobalt(II/III) redox electrolyte, by use of four cyclopentadithiophene dyes (C218, C244, C245 and C246) with the respective dihexyloxy-, diphenothiazinyl- or di-tert-butylphenyl-substituted triphenylamine and N-hexyl-carbazole electron donors. Amongst these electron donors, dihexyloxy-substituted triphenylamine is found to present the strongest electron-donating capacity, endowing the corresponding C218 dye with evidently red-shifted light absorption in comparison with the other three congeners. Transient absorption measurements show that all DSCs exhibit expeditious dye regeneration, guaranteeing efficient long-distance charge separation at the titania/dye/redox couple interface. Furthermore, it is worthwhile noting that the C218 dye prompts the highest open-circuit photovoltage amongst these chromophores, which is primarily attributed to the positive effect of slow cobalt(III) interception of titania electrons, highlighting the superiority of applying dihexyloxy-substituted triphenylamine as the electron donor for a cyclopentadithiophene dye. |
| 语种 | 英语 |
| WOS记录号 | WOS:000296248100040 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/72265]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Xu, Mingfei |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Mingfei,Zhou, Difei,Cai, Ning,et al. Electrical and photophysical analyses on the impacts of arylamine electron donors in cyclopentadithiophene dye-sensitized solar cells[J]. ENERGY & ENVIRONMENTAL SCIENCE,2011,4(11):4735-4742. |
| APA | Xu, Mingfei,Zhou, Difei,Cai, Ning,Liu, Jingyuan,Li, Renzhi,&Wang, Peng.(2011).Electrical and photophysical analyses on the impacts of arylamine electron donors in cyclopentadithiophene dye-sensitized solar cells.ENERGY & ENVIRONMENTAL SCIENCE,4(11),4735-4742. |
| MLA | Xu, Mingfei,et al."Electrical and photophysical analyses on the impacts of arylamine electron donors in cyclopentadithiophene dye-sensitized solar cells".ENERGY & ENVIRONMENTAL SCIENCE 4.11(2011):4735-4742. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。