Abstract
Transmission spectra was used to analyze the basic optical properties and optical constants of spun cast polystyrene thin
film.Thin film of polystyrene was prepared by spin coating technique at 2000 rpm for 30s.Thin film was characterized by Xray
diffraction technique to check its amorphous nature. The related parameters viz. oscilllator strength Eo, dispersion
energy Ed were determined by the Wemple-Didomenico method.The refractive index (n) , extinction coefficient (k) and
dielectric constant of thin film were calculated. The optical band gap Eg was calculated using transmission spectra.
Keywords
Polystyrene, Spun cast thin film, Spectroscopy, Optical constants, Optical band gap.
Citation
D. SHARMA, P. SHARMA, N. THAKUR, Analysis of the optical constants of spun cast polystyrene thin film, Optoelectronics and Advanced Materials - Rapid Communications, 3, 2, February 2009, pp.145-148 (2009).
Submitted at: Dec. 22, 2008
Accepted at: Feb. 13, 2009