Abstract
Silver doped sodium borate glasses prepared by melt-quenching technique were checked by XRD technique for their amorphous nature. It is observed that the molar volume increases with increasing Ag2O content leading to open struc- ture. Fourier Transform Infrared spectroscopy (FTIR) reveals the formation of BO3 and BO4 groups upon addition of silver oxide as modifier. From the Ultraviolet-Visible (UV-VIS) absorption spectra it is seen that the optical band gap increases with the increase of Ag2O content. Urbach energy is observed between 0.55 - 0.77 eV. The results obtained from molar volume, Fourier Transform Infrared spectroscopy and band gap energy measurements are in agreement with each other and nearly give the similar information about the studied glasses.
Highlights
In recent years silver doped sodium borate glasses have attracted great attention because of their valuable optical properties and high value of ionic conductivity
The Molar volume indicates the spatial distribution of the oxygen in the glass network
The increase in the molar volume with increasing content of Ag2O can be attributed to opening up of structure of glasses
Summary
In recent years silver doped sodium borate glasses have attracted great attention because of their valuable optical properties and high value of ionic conductivity. They are considered to have potential applications in solid state batteries and electrochemical devices [1,2]. Glasses containing high concentration of transition metal ions are electronic conductors [3,4]. This classifies them as a form of amorphous semiconductors. The objective of this work is to through light into the optical characterization of silver ion doped sodium borate glasses by recording IR and UV-VIS spectra
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