Effect of alkali modifier ion on spectroscopic properties of Cu super(2+)-doped lead zinc phosphate glass system

• Published in: Indian journal of physics 2015-11, Vol.89 (11), p.1169-1175
• Main Authors: Sreehari Sastry, S, Prasad, MVVKS, Venkateswara Rao, BR, Sivaramakrishna, J
• Format: Article
• Language: English
• Subjects: Bonding; Density; Electron paramagnetic resonance; Elongation; Glass; Phosphates; Spectra; Zinc phosphate
• ISSN: 0973-1458; 0974-9845
• DOI: 10.1007/s12648-015-0713-9

A blue colored Cu super(2+)-doped lead zinc phosphate glass in the system 10 Pb sub(3)O sub(4)-30 ZnO-59.9 P sub(2)O sub(5)-0.1 CuO was prepared by quenching of the melt and spectral properties of these glasses were studied. Optical absorption and electron paramagnetic resonance spectra of Cu super(2+) ion in these glasses were measured. Polarization produced by uneven distribution of d-electron density on the inner core of s-electron was studied. The estimated results showed that the g sub(||) > g sub() because Cu super(2+) ions had tetragonally elongated distortion. Optical absorption studies also supported the same property. The variation in crystal field caused the change in bonding nature. The Fourier transform infrared spectra had elucidated the bonding system of the constituent atoms and groups that shed light on the expected structure. Raman spectra were used to get information about the depolymerization of phosphate chains in the glasses with successive replacement of alkali content.