Characterization of Nano‐porous TiO2 Film Prepared by Sol‐gel Process and Its Application to Dye‐sensitized Solar Cell |
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| Authors: | Brandon Chiou Ru‐Yuan Yang Hui‐Ju Chuang Cheng‐Jye Chu |
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| Institution: | 1. Diamond Bar High School, CA 91765, USA;2. Department of Material Engineering, National Pingtung University of Science and Technology, Pingtung County 912, Taiwan;3. Nanmat Technology Co., LTD., Taiwan |
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| Abstract: | In this paper, effects of ethylene glycol (EG) and indium tin oxide (ITO) solution on the morphology, porosity, and roughness of TiO2 film prepared by sol‐gel process were investigated and discussed. Initially, the addition of EG were used to control the viscosity of the solution and it was found to increase the pore size of TiO2 film. The various TiO2 films were investigated and characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM) and then assembled to dye‐sensitized solar cell (DSSC) to measure the photoelectric conversion efficiency. The optimum efficiencies of 1.32% with Jsc and Voc of 2.99 mA/cm2 and 0.80 V, respectively, were obtained by the TiO2 film prepared from a solution containing 20 wt% EG. |
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| Keywords: | Dye Solar cell Ethylene glycol Sol‐gel |
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