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Preparation of highly ordered TiO2 nanotubes on Ti-foil for dye-sensitized solar cells |
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| Authors: | Sang-sun Park Seon-mi Eom Dong Ho Seo Yong-gun Shul |
| Affiliation: | 2. Department of Chemical Engineering, Yonsei University, 134 Shinchon-dong, Seodaemun-Gu, Seoul, 120-749, Korea 1. The Specialized Graduate School of Hydrogen and Fuel Cell, Yonsei University, 134 Shinchon-dong, Seodaemun-Gu, Seoul, 120-749, Korea |
| Abstract: | TiO2 nanotube arrays were grown on Ti foil in mixed electrolyte by the anodizing process. TiO2 nanotube arrays were immersed in the TiCl4 solution to improve the photocurrent by enhanced charge transfer between TiO2 and dye molecules on the activity surface. Internal resistance of dye-sensitized solar cells (DSSC) was measured by impedance spectroscopy measurements. Backside illuminated DSSC with TiCl4-treated TiO2 nanotubes exhibited a conversion efficiency of 1.45% and showed improved electron transfer. |
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