Synthesis and characterization of CdO and CdS nanoparticles

Cadmium oxide and cadmium sulphide particles in the nanometer size regime have been synthesized using chemical routes. CdO nanoparticles are prepared by using ethylene glycol as a capping agent and CdS nanoparticles were prepared with H2S gas. Variety of techniques like X-ray diffraction (XRD), UV-Vis absorption spectroscopy and Scanning Electron Microscopy (SEM) are used to carry out structural characterization of the nanoparticles. The optical band gap of these materials has been determined in order to establish a relationship between energy band gap of bulk and nanomaterials.