The Effect of Zn Concentration on the Optical Properties of Cd_10–xZn_xS Films for Solar Cells Applications

Nathera A. Al-Tememee, Nada M. Saeed, Sundus M. A. Al-Dujayli, Baha T. Chiad

Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq.

DOI: 10.4236/ampc.2012.22012                

Abstract

In this paper, Cd10–xZnxS (x = 0.1, 0.3, 0.5) films were deposited by using chemical spray pyrolysis technique, the molar concentration precursor solution was 0.15 M/L. Depositions were done at 350?C on cleaned glass substrates. X-ray diffraction technique (XRD) studies for all the prepared film; all the films are crystalline with hexagonal structure .The optical properties of the prepared films were studied using measurements from VIS-UV-IR spectrophotometer at wave-length with the range 300 - 900 nm; the average transmission of the minimum doping ratio (Zn at 0.1%) was about 55% in the VIS region, it was decrease at the increasing of Zn concentration in the CdS films, The band gap of the doped CdS films was varied as 3.7, 3.8, 3.6 eV at x = 0.1, 0.3 and 0.5 respectively.

Keywords

Zn Doped CdS; Spray Pyrolysis

Conflicts of Interest

The authors declare no conflicts of interest.

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