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| Field | Value |
| Title | Characterization of nano-sized CdS–Ag2S core-shell nanoparticles using XPS technique |
| Names |
HOTA, G
IDAGE, SB KHILAR, KC |
| Date Issued | 2007 (iso8601) |
| 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. |
| Genre | Article |
| Topic | Cadmium Sulfide |
| Identifier | Colloids and Surfaces A: Physicochemical and Engineering Aspects 293(1-3), 5-12 |