Fabrication and characteristics of rutile TiO2 nanoparticles induced by laser ablation

摘要：

The laser ablation technique was employed to prepare tiO2 nanoparticles by pulsed laser ablation of a titanium target immersed in the poly(vinylpyrrolidone) solution using wavelength of 1 064 ran. The as-prepared products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The results indicate that the rutile TiO2 nanoparticles are synthesized at room temperature and the average size is about 35 nm with narrow size distribution. A possible formation mechanism was discussed and the UV-vis absorption and photoluminescence were measured. The optical study shows that rutile nanoparticle possesses direct optical transition with band gap of 3.15 eV.

关键词： TiO2 rutile laser ablation nanoparticles photoluminescence

作者: LIU Pei-sheng CAI Wei-ping WAN Li-xi SHI Ming-da LUO Xiang-dong JING Wei-ping

作者单位: Jiangsu Key Laboratory of ASCI Design, Nantong University,Nantong 226019, China Key Laboratory of Ma Key Laboratory of Materials Physics,Anhui Key Laboratory of Nanomaterials and Nanotechnology,Institu Institute of Microelectronics, Chinese Academy of Sciences, Bejing 100029, China Nantong Fujitsu Microelectronics Co. Ltd, Nantong 226006, China Jiangsu Key Laboratory of ASCI Design,Nantong University, Nantong 226019, China Jiangsu Key Laboratory of ASCI Design,Nantong University, Nantong 226019,China

会议类型: 国际会议

会议名称: 2009 Frontier Symposium of China Postductors on Materrials Science(2009年中国博士后材料科学前言论坛)

会议地点: 长沙

会议语种:英文

页码: 743-747

在线出版日期: 2009-11-22（万方平台首次上网日期，不代表论文的发表时间）