Investigations of CdS and Ag-CdS nanoparticles by X-ray photoelectron spectroscopy |
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Authors: | Priya Thakur KR Patil |
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Institution: | a Department of Chemistry, University of Pune, Ganeshkhind, Pune 411007, Maharashtra, India b National Chemical Laboratory, Pune 411008, India |
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Abstract: | In the present report, CdS and Ag-CdS nanoparticles were synthesized using cysteine as a capping agent. Surface properties CdS and Ag-CdS nanoparticles were studied by X-ray photoelectron spectroscopy (XPS). XPS study of CdS nanoparticles was carried out as a function of pH and for a refluxed sample at pH 11.2. Effect of dopant concentration on surface properties of Ag-CdS nanoparticles was also studied for as prepared samples as well as for annealed sample at 2% doping. Effect of pH, dopant concentration, and effect of particle size on different sulfur species present in the system was studied. Features of Cd 3d, S 2p and Ag 3d core level have been discussed in detail. |
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Keywords: | CdS Ag-CdS Cysteine XPS |
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