Spectral characteristics of luminescent glass BaO - B2O3 - SiO2 doped Dy2O3

Abstract

Photoluminescent glass materials with the ratio of 32 BaO –23B₂O₃ - (45 - x) SiO₂ - xDy₂O₃ (in which x = 1.0 and 1.5), made by solid state phase reaction method. Excitation spectra and luminescent spectroscopy confirm that Dy³⁺ ions act as both an absorption center and a luminescent center. The color coordinate value of luminescent light shows that it is feasible to make white light LEDs of the materials.

Keywords: BBSD, w-LED, CIE