The transmittance, absorbance, and reflectance of PMMA/TiO2 composites, in different weight percentage of TiO2, prepared by a solution cast technique are investigated. The Optical transmission and UV-VIS absorption spectra have been recorded in the wavelength range 200nm-800nm for different compositions of TiO2 doped PMMA polyfilms. The absorption coefficient, optical (Direct/Indirect) energy gap, Refractive index, Optical Dielectric constant, Constant B, ratio of carrier concentration to the effective mass have been evaluated. The effects of doping percentage of TiO2 on these parameters have been discussed and behaviors of all parameters are investigated.
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Patel et al. (2011) studied this question.
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