Synthesis, physical, optical and structural studies of B2O3-CdO-Al2O3-PbF2 glasses modified with MoO3 ions

Abstract

This manuscript deals with the preparation and detailed physical and structural study of B 2 O 3 -CdO-Al 2 O 3 -PbF 2 glasses reinforced with MoO 3 ions. With the addition of MoO 3 , the density and band gap values decreased while the refractive index increased, con rming the transformation of Mo 6+ ions to Mo 5+ ions and resulting in the generation of NBO's in these glasses. The FTIR spectra revealed the presence of different borate and aluminate units. The FTIR spectra also indicated the conversion of Mo 6+ ions to Mo 5+ ions. The effect of MoO 3 ions on Raman spectra was clearly visible and indicated the conversion of BO 4 to BO 3 units, increasing NBO's which helped to explain the density variation.

Copper doped strontium Indium-borate glasses: FTIR, Raman, EPR, optical and structural studies

“…9a and 9b show the deconvoluted Raman spectrum and residue graph of BSIC-1 glass sample respectively. From the deconvolution spectra it is observed that the Raman bands are centered at 350 cm -1 , 430 cm -1 , 510 cm -1 ,700 cm - x mole% N3 N4 770 cm -1 , 860 cm -1 , 980 cm -1 , 1060 cm -1 , 1250 cm -1 , 1340cm -1 ,1450 cm -1 ,1510 cm -1 , 1610cm -1 , 1730 cm -1 &1930 cm -1 in all the samples [26,23,48]. Raman band positions are given in Table 2.…”

“…gives an idea about the glass structure and arrangement of the building blocks since it immediately displays the network's geometrical array of oxygen atoms. The molar volume increase could through more light into the glass structure [26]. Four coordinated borons N4 units are increasing from 0.5 mole% to 2.5 mole% (Fig.…”