Characterization and structural studies of lithium doped lead zinc phosphate glass system

Abstract

a b s t r a c tGlasses in the system (PbO) 30

Influence of Oxide Glass Modifiers on the Structural and Spectroscopic Properties of Phosphate Glasses for Visible and Near-Infrared Photonic Applications

“…Furthermore, the analysis of this frequency region indicates the effect of calcium oxide, strontium oxide and barium oxide on the structure of phosphate systems. The bands due to asymmetric stretching vibrations of bridging oxygen atoms in P–O–P bonds [ 63 ] and asymmetric stretching vibrations of the P–O–P linkage of Q 1 and Q 2 tetrahedra with non-bridging oxygen are located at about 900 cm −1 [ 64 ]. The decrease in the relative area of the band for a sample with BaO as oxide modifier may be associated with the formation of the P–O–Ba bonds at the expense of the rest of the P–O–P linkages.…”

Energy transfer based emission analysis of (Tb3+, Sm3+): Lithium zinc phosphate glasses

“…Oxides enhance mechanical strength, thermal stability and chemical durability of glasses while fluorides possessing low phonon energy decreases non-radiative decay losses due to multiphonon relaxations and increases quantum efficiencies and lifetimes of rare earth ion's luminescence. Fluorides also possess higher transmission ability from UV to IR besides decreasing the OH content when fluorine reacts with OH group to form HF [7][8][9]. LiF shifts the absorption edge towards UV region while ZnO acts as network former in four fold coordinate or as network modifier in six fold coordination depending on the chemical composition.…”

Ionic Conductivity and Dielectric Relaxations in Li+ Ions Doped Zinc Borate Glass System

“…Because of their environmentally friendly nature, low cost, and non-toxicity, ZnO is widely used. [7][8][9] ZnO plays a dual role in the glass structure either as a network former or modifier. It plays a modifier role by breaking B-O-B bonds and leads to the formation of non-bridging oxygen (NBO) atoms and forms defects known as dangling bonds.…”

“…The second one is a modification in the glass structure with the composition and temperature, which inturn changes the conductivity value. 9,15,16 In literature, work related to the study of lithium phosphate, lithium borate, and lithium silicate glasses containing halides and oxysalts of lithium have been reported. 9,17,18 Li + belongs to the family of fast conducting ions, and when added with Cl, I, or Li 2 SO 4, enhance the conductivity of glass.…”

“…9,15,16 In literature, work related to the study of lithium phosphate, lithium borate, and lithium silicate glasses containing halides and oxysalts of lithium have been reported. 9,17,18 Li + belongs to the family of fast conducting ions, and when added with Cl, I, or Li 2 SO 4, enhance the conductivity of glass. Li 2 SO 4 acts as both lithium-ion conductor and proton conductor in hydrogen-containing atmospheres.…”