నైరూప్య

Structural Investigations of Cr3+ Ions Doped Alkali Lead Zinc Phosphate Glasses

S Sreehari Sastry, MVVK Srinivas Prasad, B Rupa Venkateswara Rao

Lead zinc phosphate glasses containing 0.1% transition metal ion Cr3+ were prepared by melt quenching technique and their amorphous nature confirmed by X-Ray diffraction. The covalent bond nature of Cr3+ ions with octahedral symmetry in glass network was established through Electron Paramagnetic Resonance and optical absorption spectroscopic studies. Endothermic dip for glass transition temperature (Tg) at about 410 0C and an exothermic peak subsisted from thermal studies were obtained. De-polymerization of host glass network due to addition of alkali content to the glass matrix, has turned as a strong candidate for nonlinear optical laser applications