Author : Abdul-Muhsien, Marwa
journal of kerbala university,
2010, Volume 6, Issue 4, Pages 272-278
The effect of addition of TiO2 on some optical properties of poly-methyl methacrylate has been studied . For this purpose , many samples have been prepared by adding TiO2 to the poly-methyl methacrylate with different weight percentages and different thickness .The absorption and transmission spectra have been recorded at the wavelength ranges (300-850)nm . The absorption coefficient, extinction coefficient and energy gap of the indirect allowed and forbidden transition have been determined. Results show that the absorption coefficient and extinction coefficient increase and the energy gap of the indirect allowed and forbidden transition decreases with the wt.% content of TiO2.