Chin. Phys. Lett.  2011, Vol. 28 Issue (2): 025203    DOI: 10.1088/0256-307X/28/2/025203
PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
One-Step Preparation of N-Doped Nanowhisker TiO2 by Micro Arc Oxidation
SU Yu-Cheng, ZHANG Gu-Ling**, WANG Wen-Zhong, ZOU Bin, AO Le
School of Science, Minzu University of China, Beijing 100081
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SU Yu-Cheng, ZHANG Gu-Ling, WANG Wen-Zhong et al  2011 Chin. Phys. Lett. 28 025203
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Abstract Flowers, trees and coral like TiO2 films are first produced by the micro−arc-oxidation method in electrolyte of phosphate. Nanowhiskers with high surface area grow at the tail ends of the coralloid film when the positive current density is set to be 17.14 A/dm2. With acetamide in electrolyte, N element is doped. The analysis results indicate that the ratio of anatase phase to rutile phases is about 2:1 in the micro−arc-oxidation produced N-TiO2 film. The optical absorption edge red shifts in the presence of N doping.
Keywords: 52.80.Mg      68.55.Ln      78.40.Fy     
Received: 23 July 2010      Published: 30 January 2011
PACS:  52.80.Mg (Arcs; sparks; lightning; atmospheric electricity)  
  68.55.Ln (Defects and impurities: doping, implantation, distribution, concentration, etc.)  
  78.40.Fy (Semiconductors)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/28/2/025203       OR      https://cpl.iphy.ac.cn/Y2011/V28/I2/025203
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SU Yu-Cheng
ZHANG Gu-Ling
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