標題: | Enhanced Efficiency of Dye-Sensitized Solar Cells Using Anodic Titanium Oxide Nanotube Arrays |
作者: | Chen, Chien Chon Jehng, Wern Dare Li, Lu Lin Diau, Eric Wei-Guang 應用化學系 應用化學系分子科學碩博班 Department of Applied Chemistry Institute of Molecular science |
關鍵字: | anodisation;electrolytes;nanotube devices;nanotubes;photoconductivity;solar cells;titanium compounds |
公開日期: | 2009 |
摘要: | This paper concerns the microstructure of the anodic titanium oxide (ATO, TiO(2)) nanotube (NT) and its use for the dye-sensitized solar cell (DSSC) device. The ATO length was controlled by various electrolytes and anodic time at various constant applied voltages. The lengths of the NTs at 0.3-0.5 and 0.9-22 mu m were controlled by 0.5 vol % HF and 0.58 wt % KF aqueous solutions for varied periods of anodization (1-24 h). The 0.5 wt % NH(4)F electrolyte in ethylene glycol can produce 4-41 mu m for varied periods of anodization (0.5-8 h). ATO made of 0.3 (0.5 vol % HF), 12 (0.5 wt % KF), and 18 mu m (0.5 wt % NH(4)F) was used for the DSSC anode; the best cell performance attained 0.13, 3.76, and 6.18%. The DSSC made of 18 mu m ATO has a short-circuit current density (J(sc)) of 13.45 mA/cm(2), a fill factor of 0.64, an open voltage (V(oc)) of 0.72 V, and a photocurrent efficiency of 6.18% under an air mass 1.5 illumination test. |
URI: | http://hdl.handle.net/11536/7881 http://dx.doi.org/10.1149/1.3153288 |
ISSN: | 0013-4651 |
DOI: | 10.1149/1.3153288 |
期刊: | JOURNAL OF THE ELECTROCHEMICAL SOCIETY |
Volume: | 156 |
Issue: | 9 |
起始頁: | C304 |
結束頁: | C312 |
顯示於類別: | 期刊論文 |