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Absorption property in visible region of TiO2-xNx films prepared by reactive sputtering |
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清华大学机械工程系 |
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Cite this article:
;. Absorption property in visible region of TiO2-xNx films prepared by reactive sputtering. Chin J Mater Res, 2004, 18(1): 108-108.
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Abstract N-doped TiO2 films were prepared by mid-frequency alternative reactive magnetron sputtering. The N concentration of the TiO2-xNx films was analyzed by XPS. And the absorption properties of the films in visible region were closely investigated. The results show that the percentage of N2 in reactive gases is key variable to influence the concentration of Ti-N bond in TiO2-xNx films. Annealing TiO2-xNx film in nitrogen atmosphere at 380℃ is favorable to increase its atomic concentration of nitrogen. The increase of the thickness of TiO2-xNx films enhances the absorbability of TiO2-xNx films. The wavelength of the absorption edge for TiO2-xNx film with 1.5% nitrogen has a obvious redshift from 387nm to 441nm.
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Received: 02 April 2004
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