Preparation of Nanoporous TiO2 Electrodes for Dye-Sensitized Solar Cells

Nano-porous TiO2 thin films have been widely used as the working electrodes in dye-sensitized solar cells (DSSCs). In this work, the phase-pure anatase TiO2 (a-TiO2) and rutile TiO2 (r-TiO2) have been prepared using hydrothermal processes. The investigation of photo-to-electron conversion efficiency...

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Bibliographic Details
Published in:Journal of nanomaterials 2011-01, Vol.2011 (2011), p.1-7
Main Authors: Wang, Hsiue-Hsyan, Su, Chaochin, Chen, Huei-Siou, Liu, Yi-Cheng, Hsu, Yi-Wen, Hsu, Nai-Mu, Li, Wen-Ren
Format: Article
Language:English
Subjects:
Efficiency
Electrodes
Light
Nanomaterials
Spectrum analysis
Surface chemistry
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Summary:Nano-porous TiO2 thin films have been widely used as the working electrodes in dye-sensitized solar cells (DSSCs). In this work, the phase-pure anatase TiO2 (a-TiO2) and rutile TiO2 (r-TiO2) have been prepared using hydrothermal processes. The investigation of photo-to-electron conversion efficiency of DSSCs fabricated from mixed-TiO2 with a-TiO2 and r-TiO2 ratio of 80 : 20 (A8R2) was performed and compared to that from commercial TiO2 (DP-25). The results showed higher efficiency of DSSC for A8R2 cells with same dependence of cell efficiency on the film thickness for both A8R2 and DP-25 cells. The best efficiency obtained in this work is 5.2% from A8R2 cell with TiO2 film thickness of 12.0 μm. The correlation between the TiO2 films thickness and photoelectron chemical properties of DSSCs fabricated from A8R2 and DP-25 was compared and discussed.
ISSN:1687-4110
1687-4129
DOI:10.1155/2011/547103