Characteristics of Dye-Sensitized Solar Cells Using TiO2 Nanotube Arrays with Large Surface Area by Spin-Coating Nanoparticle |
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| Authors: | Jun Hyuk Yang Kyung Hwan Kim Chang Seob Kim |
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| Institution: | 1. Department of Electrical Engineering, Gachon University, Sujeong-Gu, Seongnam-Si, Gyeonggi-Do, Korea;2. Department of Energy IT, Gachon University, Sujeong-Gu, Seongnam-Si, Gyeonggi-Do, Korea |
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| Abstract: | Highly ordered TiO2 nanotube arrays (TNAs) fabricated by anodization are very attractive for use in dye-sensitized solar cells (DSSCs), because of their superior charge percolation and slow charge recombination. Highly ordered, vertically aligned TNAs have been prepared by three-step anodic oxidation. In this work, we investigated such strategies for improving the efficiency of DSSCs. Based on one of these approaches, oxide semiconductors in the form of a TNA were used as a novel method for improving electron transport through a film. A solution containing an appropriate amount of TiO2 nanoparticles was prepared, and the mixed slurry was spin-coated on a TNA film. The coated film provided a large surface area for dye adsorption. The DSSCs achieved a light-to-electric energy conversion efficiency of 5.91% under simulated solar irradiation at 100 mW/cm2 (AM 1.5). |
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| Keywords: | DSSC TiO2 TiO2 nanoparticle TiO2 nanotube spin-coating photoelectrode |
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