Abstract
Nanoparticles of undoped and Mn doped CdS (Cd1-xMnXS; x=0.01) were synthesized by co-precipitation method.X-Ray diffraction (XRD) studies reveal that CdS crystallized in Cubic (Zinc blende) phase.Field Emission Scanning Electron Microscopy (FESEM) study reveals that the undoped nanopowders are formed into aggregates while doped particles are in spherical shape. The nanoparticles were characterized using UV-Visible (UV-Vis) and Fourier Transform Infra Red (FTIR) studies. The band gap of the doped CdS is more than the undoped and this is due to quantum size effect of the nanoparticles. The average crystallite size of the doped and the undoped CdS nanoparticles is 1.58nm and 1.95 nm respectively. The photoluminescence spectrum of the Mn doped CdS show the blue band emission and green emission..
Keywords
Cadmium sulphide, XRD, FESEM, Optical studies.
Citation
A. SATHIYA PRIYA, I. B. SHAMEEM BANU, J. THIRUMALAI, A. ALAGAR, Optical charcterization of Mn doped CdS nanoparticles synthesized by simple chemical route, Optoelectronics and Advanced Materials - Rapid Communications, 7, 3-4, March-April 2013, pp.191-195 (2013).
Submitted at: Jan. 24, 2013
Accepted at: April 11, 2013