Effect of Annealing Temperature on Structural and Optical properties of Mn doped SnO2 Thin Films Prepared by Sol-Gel Technique

Sunaina ., Parikshit Sharma, Prianka Sharma
2019 International Journal of Scientific Research in Physics and Applied Sciences  
Mn doped SnO 2 thin films were prepared by sol-gel dip coating technique. The deposited films on glass substrate were annealed at 300 o C, 400 o C and 500 o C. The effect of annealing temperature on the structure and optical properties of the Mn-SnO 2 thin films have been studied by X-ray diffraction and UV-Vis spectrophotometry. X-ray diffraction studies shows the tetragonal rutile structure of SnO 2 with no additional phases of SnO 2 . Various parameters like crystallite size, lattice
more » ... s, dislocation density and microstrain have been calculated and found to vary with annealing temperature. The optical transmission spectra shows a red shift in the position of absorption edge towards higher wavelength for Mn-doped thin films but as the annealing temperature increases, the absorption edge shifts toward lower wavelengths. The optical constants and the optical parameters were determined by the spectral transmittance data.
doi:10.26438/ijsrpas/v7i2.99107 fatcat:wkppusndczbylllmq3iiythybq