Fabrication and characteristics of rutile TiO2 nanoparticles induced bylaser ablation
来源期刊：中国有色金属学报(英文版)2009年增刊第3期
论文作者：刘培生 蔡伟平 万里兮 石明达 罗向东 景为平
文章页码：743 - 747
Key words：TiO2 rutile; laser ablation; nanoparticles; photoluminescence
Abstract: 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 nm. 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.
基金信息：the Scientific Research Starting Foundation of Nantong University
the National Natural Science Foundation of China
