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ABSORPTION AND PHOTOLUMINESCENCE PROPERTIES OF CdS:Mn2+: Cu+ NANOSTRUCTURES

M. Sima1,* , I. Enculescu1, V. Ghiordanescu1, L. Mihut1

Affiliation

  1. National Institute of Material Physics P. O. Box MG 7, 77125 Magurele Bucharest, Romania

Abstract

A layer of doped CdS nanocrystals was deposited on the surfaces of nanopores of polyethyleneterephtalate (PET) membranes. Optical absorption measurements were used to determine the bandgaps of the nanocrystals; CdS:Mn2+ and CdS:Mn2+:Cu+ show a blue and red shift, respectively, relative to the band gap of nanostructurated CdS. Photoluminescence spectra of the doped and undoped CdS samples exhibit wide bands covering the visible spectrum range..

Keywords

CdS, Nanostructures, Template method.

Submitted at: May 25, 2005
Accepted at: July 21, 2005

Citation

M. Sima, I. Enculescu, V. Ghiordanescu, L. Mihut, ABSORPTION AND PHOTOLUMINESCENCE PROPERTIES OF CdS:Mn2+: Cu+ NANOSTRUCTURES, Journal of Optoelectronics and Advanced Materials Vol. 7, Iss. 4, pp. 1949-1955 (2005)