Please use this identifier to cite or link to this item:
http://hdl.handle.net/2080/530
Title: | Characterization of nano-sized CdS–Ag2S core-shell nanoparticles using XPS technique |
Authors: | Hota, G Idage, S B Khilar, K C |
Keywords: | core-shell nanoparticles w/o Microemulsion CdS–Ag2S AOT |
Issue Date: | 2007 |
Publisher: | Elsevier |
Citation: | Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol 293, Iss 1-3, P 5-12 |
Abstract: | This paper reports the use of X-ray photoelectron spectroscopy (XPS) method for the characterization of surface composition of core and shell nanoparticles. The core and shell nanoparticles were synthesized using sodium bis(2-ethylhexyl) sulfosuccinate (AOT)/n-heptane/water microemulsion technique. The post-core and partial microemulsion methods have shown promise for core and shell formation and enhanced stability and sphericity of the semiconductor nanoparticles. In addition to above technique, the core-shell nanoparticles have also been characterized using SEM-elemental detection X-ray analysis (EDAX) and results are discussed. The XPS studies of CdS, Ag2S, and CdS–Ag2S nanoparticles prepared by post-core/partial microemulsion methods were carried out and results are compared with physical mixing of CdS and Ag2S nanoparticles. The Ag/Cd atomic ratio is found to be 5 and 10 as determined by XPS methods for nanoparticles prepared by using post-core and partial microemulsion methods, respectively. These results show the formation of core and shell nanoparticles. |
Description: | Copyright for the published version of this article belongs to Elsevier |
URI: | http://dx.doi.org/10.1016/j.colsurfa.2006.06.036 http://hdl.handle.net/2080/530 |
Appears in Collections: | Journal Articles |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Colloid-Surf-07-authors copy.pdf | 701.23 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.