Synthesis and optical studies on concentration dependent Dy3+ doped sodium-borophosphate glasses

Abstract

The Dy3+ doped sodium borophosphate glasses with the chemical compositions of(50-x) H3BO3+10P2O5+10ZnO+15Na2CO3+15NaF+xDy2O3 in wt% (where X= 0.1 and 1.0) have been prepared by conventional melt quenching technique. The structural properties of the prepared glasses were studied through XRD and the spectroscopic behaviors characterized through absorption and emission spectra. XRD spectral analysis conform the amorphous nature of the prepared glasses. The ionic natures of the metal-ligand bond in the prepared glasses were evaluated by the bonding parameters (β and δ) from absorption spectra. The J-O parameter (Ω2, Ω4 and Ω6), the theoretical and experimental oscillator strength were determined and reported. The CIE (1931) chromaticity diagram for various pumping wavelengths of emission spectra has been plotted and found that the prepared glasses suitable for WLED applications.