Synthesis of TiO2/ITO Nanostructure Photoelectrodes and Their Application for Dye-sensitized Solar Cells
- Synthesis of TiO2/ITO Nanostructure Photoelectrodes and Their Application for Dye-sensitized Solar Cells
- 김대현; 박경수; 최영진; 최헌진; 박재관
- ITO nanowire; TiO2 nanoparticle; Nanowires; DSSC; Dye-sensitized solar cells; Electrical resistivity; Surface area
- Issue Date
- 한국세라믹학회지; Journal of the Korean Ceramic Society
- VOL 48, NO 1, 94-98
- A Sn-doped In2O3 (ITO) nanowire photoelectrode was produced using a simple metal evaporation method at low synthesis
temperature (<540℃). The nanowire electrodes have large surface area compared with that of flat ITO thin film, and show low
electrical resistivity of 5.6×10−3Ωcm at room temperature. In order to apply ITO nanowires to the photoelectrodes of dye-sensitized
solar cell (DSSC), those surfaces were modified by TiO2 nanoparticles using a chemical bath deposition (CBD) method. The
conversion efficiency of the fabricated TiO2/ITO nanostructure-based DSSC was obtained at 1.4%, which was increased value by a
factor of 6 than one without ITO nanowires photoelectrode. This result is attributed to the large surface area and superior electrical
property of the ITO nanowires photoelectrode, as well as the structural advantages, including short diffusion length of photo-induced
electrons, of the fabricated TiO2/ITO nanostructure-based DSSC.
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