Emission property of Ce3+-doped Li2O-B2O3-SiO2 glasses

Optical properties of Ce3+ -doped Li2O-B2O3-SiO2 glasses prepared in inert atmosphere have been examined. Clear splitting of 4f-5d excitation bands is observed in these glasses at room temperature. The emission decay constant depends on the excitation and emission energy, indicating the site distribution of Ce3+ in the random glass matrix. The absorption energies of Ce3+ are independent of the optical basicity, suggesting that the emission is affected by the local basicity of random network. The present findings provide the basic concepts for designing Cedoped oxide glass for luminescent applications. (C) 2015 Optical Society of America