Surface NH2-rich nanoparticles: Solidifying ionic-liquid electrolytes and improving the performance of dye-sensitized solar cells
文献类型：期刊论文
| 作者 | Fang, Yanyan1,2; Ma, Pin1,2; Fu, Nianqing3,4,5; Zhou, Xiaowen1,2; Fang, Shibi1,2; Lin, Yuan1,2 |
| 刊名 | JOURNAL OF POWER SOURCES
 |
| 出版日期 | 2017-12-01 |
| 卷号 | 370页码:20-26 |
| 关键词 | Ionic-liquid Nanoparticle Gel Electrolyte Dye-sensitized Solar Cell |
| 英文摘要 | The surface properties of nanoparticles have a significant influence on the properties of the gel electrolytes. Herein, the surface NH2-rich nanoparticle (A-SiO2), with a tightening network, is synthesized by silanizing SiO2 nanoparticles with pre-polymerized aminopropyltriethoxysilane, which is further employed to prepare ionic-liquid gel electrolytes for dye-sensitized solar cells. The addition of a small amount of A-SiO2 can effectively solidify the ionic-liquid, whereas a large number of NH2 groups on the SiO2 surface leads to a large negative shift of the TiO2 conduction band edge, and can react with IT in the form of a Lewis complex, resulting in an increase in the concentration of I- and a decrease in the concentration of I-3(-) in the electrolyte. In addition, the ionic-liquid gel electrolyte possesses thixotropic behavior, which allows it to easily penetrate into the inner part of the TiO2 mesoporous film. As a result, large improvements of the photovoltage from 695 mV to 785 mV and of the photocurrent from 13.3 mA cm(-2) to 14.9 mA cm(-2) are achieved. This leads to significant enhancement of the power conversion efficiency, from 6.2% to 8.1%, for the cell with A-SiO2 compared to that of the pristine ionic-liquid electrolyte. (C) 2017 Published by Elsevier B.V. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38321]  |
| 专题 | 化学研究所_光化学实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Key Lab Photochem, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China 4.Hong Kong Polytech Univ, Dept Appl Phys, Hong Kong, Hong Kong, Peoples R China 5.Hong Kong Polytech Univ, Mat Res Ctr, Hong Kong, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fang, Yanyan,Ma, Pin,Fu, Nianqing,et al. Surface NH2-rich nanoparticles: Solidifying ionic-liquid electrolytes and improving the performance of dye-sensitized solar cells[J]. JOURNAL OF POWER SOURCES,2017,370:20-26. |
| APA | Fang, Yanyan,Ma, Pin,Fu, Nianqing,Zhou, Xiaowen,Fang, Shibi,&Lin, Yuan.(2017).Surface NH2-rich nanoparticles: Solidifying ionic-liquid electrolytes and improving the performance of dye-sensitized solar cells.JOURNAL OF POWER SOURCES,370,20-26. |
| MLA | Fang, Yanyan,et al."Surface NH2-rich nanoparticles: Solidifying ionic-liquid electrolytes and improving the performance of dye-sensitized solar cells".JOURNAL OF POWER SOURCES 370(2017):20-26. |
入库方式： OAI收割
来源：化学研究所
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