Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Study on the Structure and Photoelectrochemical Properties of Anodized TiO2 Nanotube Films

양극산화법으로 제작한 TiO2 나노튜브 박막의 구조 및 광전기화학 특성 분석

  • Lee, A Reum (Division of Chemical Engineering, Hoseo Unversity) ;
  • Park, Sanghyun (Division of Chemical Engineering, Hoseo Unversity) ;
  • Kim, Jae-Yup (Division of Chemical Engineering, Hoseo Unversity)
  • Received : 2018.07.18
  • Accepted : 2018.07.27
  • Published : 2018.07.31
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Abstract

Vertically-aligned $TiO_2$ nanotube electrodes have attracted considerable attention for applications in solar cells, catalysts, and sensors, because of their ideal structure for electron transport and electrolyte diffusion. Here, we prepare vertically-aligned $TiO_2$ nanotube electrodes using a two-step anodization process. The prepared $TiO_2$ nanotube electrodes exhibit uniform pore structures with an inner diameter of ~80-90 nm and wall thickness of ~20-25 nm. In addition, they exhibit an anatase crystal phase after a high-temperature annealing. The annealed $TiO_2$ nanotube electrodes are applied in dye-sensitized solar cells (DSSCs) as photoanodes. The fabricated DSSC exhibits conversion efficiencies of 3.46 and 2.15% with liquid- and gel-type electrolytes, respectively.

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References

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