Generation of metal-oxide nanoparticles using continuous-wave fibre laser ablation in liquid
Generation of metal-oxide nanoparticles using continuous-wave fibre laser ablation in liquid
复制标题
在液体中使用连续波光纤激光烧蚀生成金属氧化物纳米颗粒
DOI：
10.1088/0960-1317/19/5/054008
复制
发表时间：
2009
影响因子：
2.3
通讯作者：
L. Li
中科院分区：
文献类型：
--
作者：
Z. Liu;Y. Yuan;S. Khan;A. Abdolvand;D. Whitehead;M. Schmidt;L. Li
近年来，液体中激光烧蚀已成为制备纳米粒子的一种越来越重要的技术。到目前为止，只使用了脉冲激光。本文报道了我们最近利用波长为1070 nm的高功率、高亮度连续光纤激光器在水环境中烧蚀金属靶产生氧化钛和氧化镍纳米粒子的研究。由于高功率、均匀的辐照，光纤激光器为NP的产生提供了另一种方法，它的相位、大小和尺寸分布都得到了很好的控制，并且产生率很高。利用高分辨电子显微镜(HRTEM)、扫描-透射式高角度环形暗场(HAADF)、能量色散X射线能谱(EDS)和X射线衍射仪(XRD)对纳米粒子的形貌、尺寸和粒度分布、化学组成和物相结构进行了表征。此外，还与脉冲激光加工进行了比较，讨论了连续光纤激光加工的局限性。
In recent years, laser ablation in liquid has become an increasingly important technique for the fabrication of nanoparticles (NPs). To date, only pulsed lasers have been used. This paper reports our recent studies on the generation of Ti-oxide and Ni-oxide NPs by the ablation of metal targets in aqueous environments using a high-power, high-brightness continuous-wave (cw) fibre laser at a wavelength of 1070 nm. Owing to the high and uniform irradiation, the fibre laser provides an alternative approach for NP generation with well-controlled phase, size and size distribution, along with high production rate. Characterization of the NPs, in terms of morphology, size and size distribution, chemical composition and phase structure, by means of high-resolution transmission electron microscopy (HRTEM), high-angle annular dark field (HAADF) in scanning-transmission (STEM) mode, energy-dispersive x-ray spectroscopy (EDS) and x-ray diffraction (XRD), has been presented. In addition, limitations of the cw fibre laser process have been discussed in comparison with pulsed laser process.
DOI：
10.1007/s00339-008-4448-8
发表时间：
2008-06-01
影响因子：
2.7
作者：
Abdolvand, A.;Khan, S. Z.;Li, Lin
通讯作者：
Li, Lin
影响因子：
2.5
作者：
Khan, Sohaib Z.;Yuan, Yudie;Watkins, K. G.
通讯作者：
Watkins, K. G.