Spectroscopic exploration of 2% copper oxide doped binary alkali borosilicate glass

Abstract

Glasses are prepared with the oldest accepted technique of melting the silica, boron oxide and alkali oxides with 2% copper oxide and quenching in air. XRD, SEM with EDX, optical methods are employed to study the microstructure of the material. The ductile nature of glass is observed from DTA studies. Glass formation is confirmed by X-ray diffraction spectra. The measured band gaps from both reflectance spectra and absorption spectra are compared and show they are in good agreement. To know the degree of the covalency of bonds, bonding parameters are calculated from EPR data. The Covalency of bonds in host glasses influences the Luminescence emission of Cu2+ ions in the visible region. The molecular structure of glasses is studied using FTIR.The covalent nature of molecular orbitals and molecular structure in the prepared samples is analysed systematically. Also, the various physical properties evaluated concerning the concentration of Alkali ions are reported. The covalent nature of glasses is observed from metallisation criterion.