首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Pulsed laser induced synthesis of scheelite-type colloidal nanoparticles in liquid and the size distribution by nanoparticle tracking analysis
Authors:Jeong Ho Ryu  Sin Young Bang  Chang Sung Lim
Institution:a Electro Materials & Device Center, Corporate R&D Institute, Samsung, Electro-Mechanics Co., Ltd., 314, Maetan 3-Dong, Yeongtong-Gu, Suwon-City, Guunggi-Do 443-743, South Korea
b Division of Advanced Materials Science Engineering, Hanyang University, 17 Haengdang-Dong, Seongdong-Gu, Seoul 133-791, South Korea
c Department of Advanced Materials Science and Engineering, Hanseo University, Seosan 356-706, South Korea
Abstract:Pulsed laser ablation (PLA) of ceramic target in liquid phase was successfully employed to prepare calcium tungstate (CaWO4) and calcium molybdate (CaMoO4) colloidal nanoparticles. The crystalline phase, particle morphology and optical property of the colloidal nanoparticles were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and Raman spectroscopy. The produced stable colloidal suspensions consisted of the well-dispersed nanoparticles showing a spherical shape. The mechanism for the laser ablation and nanoparticle forming was discussed under consideration of photo-ablation process. Nanoparticle tracking analysis using optical microscope combined with image analysis was proposed to determine the size distribution function of the prepared colloidal nanoparticles. The mean size of the CaWO4 and CaMoO4 colloidal nanoparticles were 16 and 29 nm, with a standard deviations of 2.1 and 5.2 nm, respectively.
Keywords:42  62  &minus  b  78  55  HX
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号