Promoting Effect of Layered Titanium Phosphate on the Electrochemical and Photovoltaic Performance of Dye-Sensitized Solar Cells |
| |
| Authors: | Ping Cheng Ruihao Chen Junfei Wang Jianong Yu Tian Lan Wanjun Wang Haijun Yang Haixia Wu Changsheng Deng |
| |
| Affiliation: | (1) National Key Laboratory of Nano/Micro Fabrication Technology, Key Laboratory for Thin Film and Microfabrication of the Ministry of Education, Research Institute of Micro/Nano Science and Technology, Shanghai Jiao Tong University, Shanghai, 200240, People’s Republic of China;(2) State Key Lab of New Ceramics and Fine Processing, Institute of Nuclear & New Energy Technology, Tsinghua University, Beijing, 100084, People’s Republic of China |
| |
| Abstract: | We reported a composite electrolyte prepared by incorporating layered α-titanium phosphate (α-TiP) into an iodide-based electrolyte
using 1-ethyl-3-methylimidazolium tetrafluoroborate(EmimBF4) ionic liquid as solvent. The obtained composite electrolyte exhibited excellent electrochemical and photovoltaic properties
compared to pure ionic liquid electrolyte. Both the diffusion coefficient of triiodide (I3
−) in the electrolyte and the charge-transfer reaction at the electrode/electrolyte interface were improved markedly. The mechanism
for the enhanced electrochemical properties of the composite electrolyte was discussed. The highest conversion efficiency
of dye-sensitized solar cell (DSSC) was obtained for the composite electrolyte containing 1wt% α-TiP, with an improvement
of 58% in the conversion efficiency than the blank one, which offered a broad prospect for the fabrication of stable DSSCs
with a high conversion efficiency. |
| |
| Keywords: | Diffusion Charge transfer Layered α-titanium phosphate Ionic liquid |
| 本文献已被 SpringerLink 等数据库收录！ |
|
