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
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