Organic dye-sensitized solar cells with a cobalt redox couple: influences of pi-linker rigidification and dye-bath solvent selection
文献类型：期刊论文
| 作者 | Cai N ; Li RZ ; Wang YL ; Zhang M ; Wang P |
| 刊名 | energy & environmental science
 |
| 出版日期 | 2013 |
| 卷号 | 6期号:1页码:139-147 |
| 关键词 | STRUCTURE-PROPERTY RELATIONSHIPS NANOCRYSTALLINE TIO2 CHARGE RECOMBINATION ELECTRON-TRANSFER HIGHLY EFFICIENT CONVERSION-EFFICIENCY COUMARIN DYES FILMS PHOTOVOLTAGE PERFORMANCE |
| ISSN号 | 1754-5692 |
| 通讯作者 | cai n |
| 中文摘要 | the rigidification of pi-conjugated linkers represents a viable strategy towards the energy-level engineering of organic push-pull photosensitizers in dye-sensitized solar cells. in this paper we deploy 4-hexylphenyl substituted cyclopenta[1,2-b:5,4-b'] dithiophene[2',1':4,5] thieno[2,3-d]thiophene as the pi-linker of a d-pi-a dye, which displays an improved molar absorption coefficient and a red-shifted absorption peak in contrast to its model dye with the 2,5-di(thiophen-2-yl)thieno[3,2-b]thiophene segment. the energy-gap reduction is concomitant with negative and positive shifts of ground-state and excited-state redox potentials, which however do not exert an adverse impact on the net charge separation yield at the titania/dye/electrolyte interface, probably due to the formation of a favored microstructured dye assembly. furthermore, the dye load amount can be tuned by changing the bath solvent and has a significant influence on some key photovoltaic features such as the photocurrent and photovoltage, the latter of which is dissected via the joint charge extraction and photovoltage decay experiments. the charge recombination lifetime could be roughly rationalized by analyzing the damping of signals on emitted electrons from titania in the x-ray photoelectron spectroscopy measurements. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000312337700018 |
| 公开日期 | 2014-04-18 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/50435]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Cai N,Li RZ,Wang YL,et al. Organic dye-sensitized solar cells with a cobalt redox couple: influences of pi-linker rigidification and dye-bath solvent selection[J]. energy & environmental science,2013,6(1):139-147. |
| APA | Cai N,Li RZ,Wang YL,Zhang M,&Wang P.(2013).Organic dye-sensitized solar cells with a cobalt redox couple: influences of pi-linker rigidification and dye-bath solvent selection.energy & environmental science,6(1),139-147. |
| MLA | Cai N,et al."Organic dye-sensitized solar cells with a cobalt redox couple: influences of pi-linker rigidification and dye-bath solvent selection".energy & environmental science 6.1(2013):139-147. |
入库方式： OAI收割
来源：长春应用化学研究所
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。