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Effect of thermal annealing and gamma irradiation on the optical properties of CdS-polymer nanocomposites

D. REZAEI-OCHBELAGH1, Y. AZIZIAN-KALANDARAGH2,* , A. KHODAYARI3

Affiliation

  1. Physics Department, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran
  2. Physics Department, Institute for Advanced Studies in Basic Sciences (IASBS), 45195-1159, Zanjan -Iran
  3. Chemistry Department, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran

Abstract

This paper presents formation of CdS nanoparticles in gelatin polymer matrix using successive ionic layer adsorption and reaction (SILAR) technique and the effects of thermal annealing and gamma irradiation on the optical properties of CdSpolymer nanocomposites have been investigated. It has been determined that optical transparency of CdS-gelatin nanocomposites decreased with thermal annealing and gamma irradiation. It has been also observed a small red shift in band gap of CdS due to agglomeration of nanoparticles after treatment. SEM images also show the formation of CdS nanoparicles in polymer matrix with average particles size of about 30nm..

Keywords

CdS-polymer, Nanocomposite, Gamma irradiation, Optical properties.

Citation

D. REZAEI-OCHBELAGH, Y. AZIZIAN-KALANDARAGH, A. KHODAYARI, Effect of thermal annealing and gamma irradiation on the optical properties of CdS-polymer nanocomposites, Optoelectronics and Advanced Materials - Rapid Communications, 4, 6, June 2010, pp.881-883 (2010).

Submitted at: May 25, 2010

Accepted at: June 16, 2010