CHARACTERISATION OF MANGANESE DOPED CdO THIN FILMS PREPARED BY DIP COATING METHOD

Abstract

Transparent and conducting cadmium oxide (CdO) and manganese doped cdo (Mn:CdO) thin films were deposited using a low cost dip coating method on the glass substrate at 400^◦C. For Mn doping concentration of manganese chloride 2% (0.039582gm) was used in the spraying precursor solution. The CdO and Mn film were investigated using uv-vis spectroscopy, FTIR spectroscopy and thickness measurement. The optical band gap of the films decreases from 5.69 eV with increasing concentration of manganese, Optical absorption spectra of Cdo film decreases with increases doping concentration of manganese. The FTIR study reveals that the CdO and Mn the functional groups are presented. The Air wedge method of CdO and Mn: the thickness of the thin films to increases with CdO doping percentage from pure CdO 1.2504×10^-3mm at 0.1% Mn 4.1344×10^-3mm. It is observed that the Mn doped CdO is higher than the pure CdO.