Abstract
Na2O-BaO-Borate glasses were synthesized with silver nano-particles of varying silver concentrations by the method of melt-quenching. Their densities of the glasses and hence molar volumes were computed. The existence of the silver nano-particles was depicted by characteristic band in the absorption spectra of UV- Visible studies known as plasmon band. Further the matrix also showed a small amount of nanostructures of the host which imparts the nonlinear behaviour. They were further visualized by the Scanning and Transmission electron microscopy. Optical band gap and Urbach energies were found. The band gap values change exactly in the opposite manner of density with silver doping. The wide luminescence band in the visible region formed for the excitation of plasmon band may be utilized for the luminescence enhancement of luminescent material like rare earth ions. The very significant result perceived from this is that the glass as such with silver nano-particles showed broad emission in the, green & blue portions of electromagnetic spectrum in the close vicinity of white light with the variation of silver content which can be utilized for the enrichment of the emission of lanthanide ions in the visible section of electro-magnetic spectrum.
Highlights
Glass is a very vital material both in the ancient times as well as in the present scenario
The different chemical and their stoichiometric molar compositions of the glasses prepared are shown in the table 1
Sodium-Barium-Borate glasses tamper with silver nano-particles were successfully synthesized by the meltquenching practice with different silver concentrations
Summary
Glass is a very vital material both in the ancient times as well as in the present scenario. The significance of glasses lies in its ease of formation as well as it can tailored into any desired shapes like sheets, glass wools, rods, thin films, fibers etc Glass as such is highly transparent dielectric material and mainly attracted by its beautiful colours and its vast application. The preparation of the borate glasses, modified by barium oxide and sodium oxide, with silver nanoparticles was done successfully by utilising the melt quenching method. The investigations of these glasses in relation to their physical, molecular-structural, optical absorption and luminescence properties were made with the aid of many sophisticated instruments which are discussed. Journal of Materials and Applications 2020;9(2):107119 used for the rare earth luminescence boosting when the glasses were doped with both silver nanoprticles and the lanthanide ions
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