Synthesis And Characterization Of Spin Coated ITO Films Prepared With Methanol Solution

The investigation of structural, electrical and optical properties of In
₂
O
₃
:Sn (Indium Tin Oxide) transparent conducting coating prepared with methanol (CH
₃
OH) solution on glass substrate has been presented in this paper. The surface morphology of the films was observed by Optical Fluorescence Microscope (FM) and the surface smoothness was improved after heat treatment. The electrical resistivity of 5, 10 and 15 layered ITO coating has been measured using Van Der Pauw method before and after annealing and it was in 10
^-4
Ω- cm range for 15 layered films. The electricity of the films is increased with heat treatment. The optical transmittance and absorbance of the films were measured by Ultra Violet (UV) spectrophotometer in the wavelength range of 200 nm to 800 nm for various film thickness. The films showed great optical transmittance in the visible range as well as in close infrared range. As like electricity, the transmittance of the films was significantly improved with heat treatment of the samples.