標題: Improved Performance for Dye-Sensitized Solar Cells Using a Compact TiO2 Layer Grown by Sputtering
作者: Chang, Hung-Chih
Twu, Ming-Jenq
Hsu, Chun-Yao
Hsu, Ray-Quen
Kuo, Chin-Guo
機械工程學系
Department of Mechanical Engineering
公開日期: 2014
摘要: This work determines the effect of compact TiO2 layers that are deposited onto fluorine-doped tin oxide (FTO), to improve the performance of dye-sensitized solar cells (DSSC). A series of compact TiO2 layers are prepared using radio frequency (rf) reactive magnetron sputtering. The films are characterized using X-ray diffraction (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM), and UV-Vis spectroscopy. The results show that when the Ar/O-2/N-2 flow rates are 36 : 18 : 9, the photo-induced decomposition of methylene blue and photo-induced hydrophilicity are enhanced. After annealing at 450 degrees C in an atmosphere ambient for 30 min, the compact TiO2 layers exhibit higher optical transmittance. The XRD patterns for the TiO2 films for FTO/glass show a good crystalline structure and anatase (101) diffraction peaks, which demonstrate a higher crystallinity than the ITO/glass films. As a result of this increase in the short circuit photocurrent density, the open-circuit photovoltage, and the fill factor, the DSSC with the FTO/glass and Pt counter electrode demonstrates a solar conversion efficiency of 7.65%.
URI: http://hdl.handle.net/11536/24520
http://dx.doi.org/10.1155/2014/380120
ISSN: 1110-662X
DOI: 10.1155/2014/380120
期刊: INTERNATIONAL JOURNAL OF PHOTOENERGY
顯示於類別:期刊論文


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