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A Study of Photocatalyst of the TiO2 Thin Film with Acid Dispersed CNT for Dye-Sensitized Solar Cell

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Abstract:

M-CNTs (Multiwall Carbon Nano Tubes) can be used as an electrode, transferring electrons and heat very easily. This property helps transfer electrons created in TiO2 layer of DSSC (Dye-sensitized Solar Cell). CNTs layer with TiO2 utilized for the photocatalyst is expected to contribute to improve the efficiency of the solar cell. The Photocatalyst of TiO2 thin film was manufactured from titanium isopropoxide, ethanol, and HCl by a sol-gel process. To determine the property of TiO2 thin film with CNT, we performed to mix acid dispersed CNT in TiO2 Sol-gel and make coating membranes using sol-gel with different densities of CNT. It was found that the crystal structure changed from the anatase phase to the rutile phase having higher efficiency by XRD measure after treatment of high temperature sintering. To demonstrate the property of each sample, the transmittance of the TiO2 thin film was measured by a spectrometer and dispersion of CNT of the thin film was measured by SEM. In conclusion, the capacitance as the parameter which can affect performance of DSSC was investigated.

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Info:

Periodical:

Defect and Diffusion Forum (Volumes 297-301)

Pages:

764-770

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.297-301.764

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Online since:

April 2010

Authors:

Yong Woo Kim, Eun Nara Cho, Soo Chang Choi, Deug Woo Lee

Keywords:

Dye Sensitized Solar Cell (DSSC), Multi-Walled Carbon Nanotube (MWCNT), TiO2 Thin Films

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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