Abstract
This research presents the synthesis, optical and physical properties of five new glass samples based on tellurium dioxide with the following chemical composition 75TeO2 – 5Na2O – (x-20)BaO – xYbO1.5, where x = 2, 5, 10, 15 mol%, the fifth sample contains the following chemical composition: 65TeO2 – 5Na2O – 15BaO – 5YbO1.5 – 10BiO1.5 mol%. The samples were coded as follows TNB-Y02; TNB-Y05; TNBY-10; TNB-Y15; TNBY-Bi10, respectively. We initially studied the optical and physical changes on the studied glass when the Ba2+ atoms were replaced by Yb3+ atoms and Te2+ atoms with Bi3+. We found that the presence of bismuth in the TNBY-Bi10 sample has a positive impact in increasing the energy of the bang gap and the density of the glass sample. On the other hand, all the studied samples TNBY except the TNBY-Bi10 sample have emission band with a wavelength of 1025 nm at room temperature. Therefore, such glass samples have a potential use in transparent electrodes in solar cells as well as in surface acoustic wave devices.