Optimization of TiO/sub 2/ substrate for dye-sensitized solar cells

The effect of pre-thermal treatment on anatase TiO/sub 2/ with high specific surface area (ca. 334 m/sup 2//g, HK) was investigated for dye-sensitized solar cell (DSC). The optimized substrate was observed on the HK pre-calcined at 450/spl deg/C (HK-450) in terms of morphological feature, crystallin...

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Bibliographic Details
Main Authors: The-Vinh Nguyen, Dae-Jin Choi, Hyun-Cheol Lee, Ki-Ju Kim, O-Bong Yang
Format: Conference Proceeding
Language:English
Subjects:
Calcination
Chemical analysis
Counting circuits
Electrodes
Photovoltaic cells
Powders
Surface cracks
Surface morphology
Temperature
Transistors
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Summary:The effect of pre-thermal treatment on anatase TiO/sub 2/ with high specific surface area (ca. 334 m/sup 2//g, HK) was investigated for dye-sensitized solar cell (DSC). The optimized substrate was observed on the HK pre-calcined at 450/spl deg/C (HK-450) in terms of morphological feature, crystallinity, surface area, and photocurrent density. A DSC fabricated with HK-450 exhibited the high photovoltaic performance with significantly improved short-circuit current. This was attributed to the superior morphological features of HK-450, causing the high adsorption of dye and high photocurrent density. The optimization between the morphological feature, crystallinity, specific surface area and the photocurrent density of TiO/sub 2/ substrate was found to give rise to the improved overall conversion efficiency of DSC.
ISSN:0160-8371
DOI:10.1109/PVSC.2005.1488069