Abstract
A blue colored Cu2+-doped lead zinc phosphate glass in the system 10 Pb3O4–30 ZnO–59.9 P2O5–0.1 CuO was prepared by quenching of the melt and spectral properties of these glasses were studied. Optical absorption and electron paramagnetic resonance spectra of Cu2+ 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 || > g ⊥ because Cu2+ 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.
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The authors gratefully acknowledge UGC DRS LEVEL III Program No. F.530/1/DRS/2009 (SAP-I), dated 09-02-2009 and DST FIST Program No. DST/FST/PSI—002/2011dated 20-12-2011, New Delhi, to the Department of Physics, Acharya Nagarjuna University for providing financial assistance.
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Sreehari Sastry, S., Prasad, M.V.V.K.S., Venkateswara Rao, B.R. et al. Effect of alkali modifier ion on spectroscopic properties of Cu2+-doped lead zinc phosphate glass system. Indian J Phys 89, 1169–1175 (2015). https://doi.org/10.1007/s12648-015-0713-9
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DOI: https://doi.org/10.1007/s12648-015-0713-9