Papers by Author: N. Sankar

Abstract: Self-diffusion, both cationic and anionic diffusion, in ZnS nanoparticles is studied here following reaction coordinate theory. The jump frequencies, at various temperatures are computed. The isotope effect reveals the self-diffusion in nano ZnS is mainly through interstitial migration.

Abstract: Defect modes in ZnS:Mn and CdS:Mn nanoparticles are investigated by means of Fourier transform infrared spectroscopy and the Raman technique for local vibrational modes (LVM), and the observed modes are explained theoretically by using a molecular model.