Yttrium-europium oxide doped zinc phosphate glasses, a luminescence study

Abstract The luminescent and structural properties of Zn 3 (PO 2 ) 4 :Y 2 O 3 /Eu 3 + glasses synthesized by melting method at a temperature of 1000 °C are described; the doping was performed with Y 2 O 3 :Eu 3 + powders which were synthesized by the simple evaporation method at 1100 °C with a concentration of 4.3% Eu 3 + as determined by EDS. These glasses have a transparency above 90% within the range 400–700 nm, they present an intense luminescence that is associated with characteristic intra-electronic energy levels of Eu 3 + ion transitions. The dominant emission peak is at 613 nm, corresponding to the 5 D 0 to 7 F 2 transition and the dominant excitation peak is at λ exc = 395 nm. The XRD results indicate that they remain amorphous even when they are doped with different masses of the powders Y 2 O 3 :Eu 3 + ; the CIE diagram shows that the luminescence of these glasses Zn 3 (PO 2 ) 4 :Y 2 O 3 /Eu 3 + and Y 2 O 3 :Eu 3 + powders lies in the red region.