27 مهر 1398
داريوش سوري

داریوش سوری

مرتبه علمی: دانشیار
نشانی:
تحصیلات: دکترای تخصصی / فیزیک ماده چگال
تلفن:
دانشکده: علوم پایه

مشخصات پژوهش

عنوان
Study of Optical Absorption and Optical Band Gap Determination of Thin Amorphous TeO2-V2O5-MoO3 Blown Films
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Optical absorption, Thin amorphous blown films, Optical band gap
سال
2006
مجله Indian Journal of Pure and Applied Physics
پژوهشگران داریوش سوری

چکیده

The optical absorption coefficient of amorphous 40TeO2-(60-x) V2O5-xMoO3 thin films was determined in a spectral range 190-1100 nm at room temperature. The fundamental optical absorption edge was sharp. The optical gap generally increases as the proportion of MoO3 in the mixed films was increased; also, the width of the tail of the localized states in the band gap was determined for different compositions, which are arising from the lack of long range order and the results were discussed in terms of the usual density-of-state models of amorphous materials.