Evaluation and Optimization to Recycle Used TiO2 Photoelectrode for Dye-Sensitized Solar Cells

被引：4
|
作者：
Chen, Ruei-Tang [1 ]
Liao, Chien-Feng [1 ]
机构：
[1] Southern Taiwan Univ Sci & Technol, Dept Electroopt Engn, Tainan 701, Taiwan
来源：
INTERNATIONAL JOURNAL OF PHOTOENERGY | 2014年 / 2014卷
关键词：
EFFICIENCY; STABILITY; ACID;
D O I：
10.1155/2014/650945
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
This study proposes a method for recycling and activating the titanium oxide (TiO2)/fluorine-doped tin oxide (FTO) photoanode in dye-sensitized solar cells (DSCs) by repeated dye adsorption and desorption processes using various desorption agents. This simple and convenient method could be utilized to activate TiO2 photoelectrodes for DSCs after the long-term operation. The devices are immersed in acidic, alkaline, and neutral media of various concentrations for desorption and then are soaked in the N719 solution again. The optimal device had an overall power conversion efficiency (AM 1.5 G, 100 mW/cm(2)) with 5 x 10(-3) M NaOH solution as a desorption agent being 6.44% better than that of devices that had not undergone recycling and activation.
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页数：7
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