Impact of Eu3+ Ions on Physical and Optical Properties of Li2O-Na2O-B2O3 Glass

Abstract

The lithium sodium borate glasses doped with Eu3+ ion are prepared using melt quenching technique, their structural and optical properties have been evaluated. The density of prepared glasses exhibits an inverse behavior to the molar volume ranging from 2.26 g/cm3 to 2.43 g/cm3 and 26.95 cm3/mol to 26.20 cm3/mol, respectively. The absence of sharp peaks in XRD patterns confirms the amorphous nature of the prepared glasses. The absorption spectra yield four transitions centered at 391 nm (7F0→5L6), 463 nm (7F0→5D2), 531 nm (7F0→5D1), and 582 nm (7F0→5D0). The most intense red luminescence is observed at 612 nm corresponding to 5D0→7F2 transition under 390 nm laser excitations.

Influence of Eu³⁺ dopant on physical and optical properties of lithium-borosulfophosphate glasses

“…The dependences of density and molar volume of 15Li2O-30B2O3-15SO3-(40-x)P2O5 glasses on Eu 3+ content shown in Figure 2 exhibit non-linear behaviour which is in agreement with other studies on Eu 3+doped glasses (Razak et al, 2016, Boda et al, 2016 and (Wagh et al, 2015). The account for the increase in density at the expense of europium content is due to the successive replacement of phosphate atom having less atomic weight by the europium atom with higher atomic.…”

“…In recent time, few researchers introduced sulfate as intermediate into borophosphate forming "Borosulfophosphate glasses" to further enhance the strength of the host matrix (Kumar et al, 2012a, Kumar et al, 2012b, Ravi Kumar, 2013. These materials revealed superior features than borophosphate glasses such as low strain birefringence, low melting point, low optical loss, low nonlinear refractive index coefficient and superior refractory nature (Selvi et al, 2015). Despite the applied interest on these glass hosts, the information on physical and optical properties of borosulfophosphate glasses activated with rare earth ions is not fully understood.…”

Effect of Eu³⁺ Ions on the Physical, Optical and Luminescence Properties of Aluminium Phosphate Glasses

“…The molar volume of glasses tended to decrease with increasing Eu 2 O 3 contents up to 0.50 mol% thereafter increase. The decrease in molar volume shows the increase in glass network compactness, while since 0.5 mol%, can be explained that Eu 3+ act as glass modifier and create numbers of non-bridging oxygen (NBOs) in the glass network cause expansion of the glass structure [11]. Fig.…”

An extensive assessment of the impacts of BaO on the mechanical and gamma-ray attenuation properties of lead borosilicate glass

“…A small band is located at 550 and 560 cm −1 , which is related to the O–Si–O bending vibration mode 35 , while the band appearance at 690 and 703 cm −1 can be assigned to bending vibration B–O–B 46 . The large band centered at 906 to 971 cm −1 and 1039 to 1076 cm −1 can correspond to the B–O stretching of the tetrahedral BO 4 unit 48 The last band at high wavenumbers from 1388 to 1453 cm −1 and 1202 and 1247 cm −1 is associated with B–O stretching of trigonal BO 3 47 . On the other hand, it can be noted that the change in band position for the BO 3 band with adding a further amount of BaO is due to transforming BO 3 to BO 4 and forming nonbridging oxygen.…”