Physical, structural and photo luminescence properties of lead boro-tellurite glasses doped with Eu3+ ions

• Published in: Vacuum 2020-07, Vol.177, p.109426, Article 109426
• Main Authors: Devaraja, C., Jagadeesha Gowda, G.V., Keshavamurthy, K., Eraiah, B., Devarajulu, G., Jagannath, G.
• Format: Article
• Language: English
• Subjects: CIE; FTIR; Judd-ofelt theory; Lead boro tellurite glasses; Photoluminescence
• ISSN: 0042-207X; 1879-2715
• DOI: 10.1016/j.vacuum.2020.109426

Lead boro-tellurite glasses activated with europium oxide were synthesized with the aid of conventional melt quenching mode. Physical properties such as density and molar volume as a function of Eu2O3 concentration were determined. Structural studies have been done through X-ray diffraction (XRD) and Fourier Transform Infrared spectroscopy (FTIR). Morphological and luminescent properties have been analysed with Scanning Electron Microscopy (SEM) and spectrofluorometer, respectively. Non-crystalline character was proved by XRD and the surface morphology by SEM technique. Five luminescence emission bands were observed at different wavelengths when excited by 394 nm. The most intensive emission peak was positioned at 612 nm (red) due to 5D0 →7F2 transition of Eu3+ ion. Judd-Ofelt (JO) theory was applied to estimate various radiative parameters and to decide the suitability of the glass for technological applications. JO and the CIE Chromaticity values reveal the investigated glasses are promising materials for electro-optic applications. •XRD measurements have been done for prepared set of glass.•Analysis of morphology of the glasses by using SEM.•FTIR have been used for prepared glass to observe vibrational modes of bonds.•CIE and CCT were implemented to learn emission intensities.•Prepared glass has potential to develop photonic applications.