SYNTHESIS AND CHARACTERIZATION OF NICKEL DOPED CdS NANOPARTICLES

In the present work, conventional chemical co-precipitation method was employed for the preparation of Nickel (2, 4, 6, 8 and 10 at.% of Ni ) doped CdS nanoparticles. The crystallite size and lattice parameters for each sample are determined from X-ray diffraction (XRD) analysis. From XRD patterns the broadening of the diffraction peaks indicates the nanostructure nature of the samples. Surface morphology of the samples was studied by scanning electron microscope (SEM). UV-Visible absorption spectra for prepared samples are monitored for the optical properties of quantum sized particles. All nanoparticles formed lie in the size quantization regime and exhibit good crystallinity. Optical properties have been observed via UV-Vis spectroscopy and Photoluminescence spectra (PL) spectra. Ni doping in CdS is found to modify the luminescence properties by creating shallow acceptor states.