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Effects of annealing on optical properties of ZnS and ZnS:Mn thin films

C. GÜMÜŞ1

Affiliation

  1. Physics Department, University of Cukurova 01330 Adana, Turkey

Abstract

Zinc sulfide (ZnS) films were deposited by chemical bath deposition (CBD) method using zinc sulphate (ZnSO4) and thioacetamide (TA) as starting materials. For doping the ZnS films, MnCl2 was added to the solution. The changes in optical constants were studied as a function of annealing temperature. By annealing, the energy gap (Eg) values were seen to be reduced in both doped and undoped films. The Mn doped films were seen more resistant to the heat treatment than undoped films. The optical absorption coefficient changes were observed in the films..

Keywords

Chemical bath deposition, ZnS, ZnS:Mn, Thin films, Optical properties.

Submitted at: July 9, 2010
Accepted at: Aug. 12, 2010

Citation

C. GÜMÜŞ, Effects of annealing on optical properties of ZnS and ZnS:Mn thin films, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 8, pp. 1747-1751 (2010)