양극산화법으로 제작한 TiO2 나노튜브 박막의 구조 및 광전기화학 특성 분석
Study on the Structure and Photoelectrochemical Properties of Anodized TiO2 Nanotube Films
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Vertically-aligned TiO2 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 TiO2 nanotube elec-trodes using a two-step anodization process. The prepared TiO2 nanotube electrodes exhibit uniform pore structures with an inner diam- eter 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 TiO2 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.
Abstract
Vertically-aligned TiO2 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 TiO2 nanotube elec-trodes using a two-step anodization process. The prepared TiO2 nanotube electrodes exhibit uniform pore structures with an inner diam- eter 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 TiO2 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.
참고문헌 (14)
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