Exploring the structure and luminescence properties of Dy3+ ions doped oxy antimony lead boro barium glasses for photonic devices

Author : Koneru Swapna

Abstract : A series of Dy3+ doped B2O3-Sb2O3-BaO-PbO-LiF (PbSbBa) glasses were developed using the conventional melt-quenching method to investigate their luminescent properties for possible wLED applications. To evaluate the structural and luminous properties of each sample, the following techniques were employed: Raman spectroscopy, X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), along with excitation, emission, and decay lifetime measurements. The non crystalline nature of the titled glasses confirmed through XRD analysis. The existence of borate units was established using Raman and FTIR investigations. The Judd-Ofelt parameters were determined by the analysis of absorption spectra to enhance understanding of the optical behaviour of the prepared glasses. Emission bands of strong blue (482 nm), yellow (575 nm), and red (664 nm) have been seen in PbSbBa glasses under various excitation conditions. Three emission spectral lines exhibit transitions of Dy3+ ions from 4F9/2 to 6H15/2 , 6H13/2 , and 6H11/2 . Using the CIE 1931 colour chromaticity

Keywords : Dy³⁺ Doped Glasses, Luminescence Properties, Melt-Quenching Method, Judd–Ofelt Analysis, Rare-Earth Ions, White LED (wLED) Applications, Borate Glass System, Optical Spectroscopy

Conference Name : International Conference on Nanotechnology, Optoelectronics and Photonics (ICONODD - 25)

Conference Place : Austin, USA

Conference Date : 27th Dec 2025