期刊
CORROSION SCIENCE
卷 49, 期 1, 页码 203-210出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2006.05.009
关键词
self-organization; titanium oxide; nanotube; photoelectrochemistry; impedance
By anodization of titanium, TiO2 nanotube layers were grown that consist of arrays of individual tubes with a length of approximate to 2.5 mu m, a diameter of approximate to 100 nm and a wall thickness of approximate to 15 nm. The electronic properties of TiO2 nanotube layers were characterized using photoelectrochemical and impedance measurements. Photocurrents for as-anodized tubes are dominated by their amorphous state and a high number of defects. Conversion to anatase by annealing decreases the defect density drastically which results in an enhanced photocurrent. (c) 2006 Elsevier Ltd. All rights reserved.
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