The effect of pre-pattern on the morphology and growth speed of TiO2 nanotube |
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Authors: | Tao XuJia Lin Jingfei ChenXianfeng Chen |
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Affiliation: | Department of Physics; The State Key Laboratory on Fiber Optic Local Area Communication Networks and Advanced Optical Communication Systems, Shanghai Jiao Tong University, 800 Dongchuan Rd. Shanghai 200240, China |
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Abstract: | In this work, we presented a new method which directly acts on the surface of the Ti sheet by mechanical micro-etching using a grating ruling engine. The effect of the pre-pattern on the morphology and growth speed of TiO2 nanostructure formed on the Ti sheet with the traditional anodization method was investigated. A novel wall structure was observed and the growth speed of TiO2 nanotube (NT) was greatly affected by the pre-pattern. The wall structure increases the surface-to-volume ratio of the nanotube arrays. The new method provided the possibility of further optimization of fast growth of TiO2 nanostructure and improving the efficiency of dye-sensitized solar cell (DSSC) and photocatalysis. |
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Keywords: | Nanotube TiO2 Pre-pattern Mechanical etching Morphology |
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