01695nas a2200157   4500008004100000245008900041210006900130260000800199300000900207490000800216520113200224100001301356700002401369700002301393856012101416       2007                        eng d00aCharacterization of nano-sized CdS-Ag2S core-shell nanoparticles using XPS technique0 aCharacterization of nanosized CdSAg2S coreshell nanoparticles us  cFEB  a5-120 v2933 a<p>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 US, Ag2S, and CdS-Ag2S nanoparticles prepared by post-core/partial microemulsion methods were carried out and results are compared with physical mixing of US 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. (c) 2006 Elsevier B.V. All rights reserved.</p>1 aHota, G.1 aIdage, Susheela, B.1 aKhilar, Kartic, C.  uhttps://library.ncl.res.in/content/characterization-nano-sized-cds-ag2s-core-shell-nanoparticles-using-xps-technique