Transparent conducting oxide is a cadimum oxide and maganese doped cdo (Mn:CdO) thin films were deposited using a dip coating method on the glass substrate at 400◦ C. For Mn doping concentration of magnanese choloride 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 maganese, Optical absorption spectra of Cdo film decreases with increases doping concentration of maganese. The FTIR study reveals that the CdO and Mn the functional groups are presented. The Conclude Air wedge method of CdO and Mn: the thickness of the thin films is compared to increases with CdO doping percentage from pure CdO 1.2504×10-3 mm at 0.1% Mn 4.1344×10-3 mm. It is observed that the Mn doped CdO is higher than the pure CdO.
