Chin. Phys. Lett.  2010, Vol. 27 Issue (7): 077103    DOI: 10.1088/0256-307X/27/7/077103
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
Preparation and Photocurrent Performance of Highly Ordered Titania Nanotube Implanted with Ag/Cu Metal Ions

LIAO Bin, WU Xian-Ying, LIANG Hong, ZHANG Xu, LIU An-Dong

Key Laboratory for Radiation Beam Technology and Material Modification of Ministry of Education, Institute of Low Energy Nuclear Physics, Beijing Radiation Center, Beijing Normal University, Beijing 100875
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LIAO Bin, WU Xian-Ying, LIANG Hong et al  2010 Chin. Phys. Lett. 27 077103
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Abstract

Ag/Cu-doped titania nanotubes (Ag/TiNT, Cu/TiNT) are prepared by a metal vapor vacuum arc implanter. A scanning electronic microscope is employed for microstructural characterization. The photo-current performance of doped titania nanotubes under UV and visible light is tested by an electrochemical workstation CS300UA, the results show that the absorption edge of both Ag/TiNT and Cu/TiNT samples shifts to the visible light region and the band gap becomes narrower. Ag/TiNT possesses better photo-current ability than Cu/TiNT under UV and visible light. Titania doped with Ag and Cu metal ions is also studied based on the linearized augmented plane-wave method implemented by WIEN2k package, the result becomes better with the experimental performance.

Keywords: 71.15.Mb      73.63.Fg      81.05.Je     
Received: 16 May 2010      Published: 28 June 2010
PACS:  71.15.Mb (Density functional theory, local density approximation, gradient and other corrections)  
  73.63.Fg (Nanotubes)  
  81.05.Je (Ceramics and refractories (including borides, carbides, hydrides, nitrides, oxides, and silicides))  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/27/7/077103       OR      https://cpl.iphy.ac.cn/Y2010/V27/I7/077103
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LIAO Bin
WU Xian-Ying
LIANG Hong
ZHANG Xu
LIU An-Dong
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