Influence of europium (Eu3+) ions on the optical properties of lithium zinc phosphate glasses

International Conference on Advances in Materials and Manufacturing Applications 2017

Shwetha, M.^1 ; Eraiah, B.^1

Department of Physics, Bangalore University, Bengaluru, Karnataka

560056, India^1

关键词: Direct band gap;    Europium-doped;    Fluorescence peak;    Glass systems;    Indirect band gap;    Luminescence color;    Melt quenching method;    Zinc phosphate glass;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/310/1/012033/pdf
DOI  :  10.1088/1757-899X/310/1/012033

来源: IOP

【 摘 要 】

Europium doped lithium zinc phosphate glasses with composition xEu2O3-(15-x) Li2O-45ZnO-40P2O5(where x=0, 0.1, 0.3 and 0.5 mol %) named as EP0, EP1, EP3 and EP5 respectively, are prepared by melt-quenching method and the influence of Eu3+ions on physical and optical properties of these glasses has been studied. Optical properties were studied using optical absorption spectra which was recorded at room temperature in the UV-Visible region. Optical direct band gap and indirect band gap energies were measured and their values range from 3.167 to 4.23eV and 2.08 to 3.02eV, respectively. Refractive indices have been measured with respect to different concentration of europium ions. Fluorescence spectroscopy measurements have been performed by excitation in the UV-Visible range, which resulted in the significant fluorescence peaks. The luminescence color of the glass system is characterized using Commission International de l'Eclairage de France 1931 standards.