TY - JOUR
T1 - Physical, structural and photo luminescence properties of lead boro-tellurite glasses doped with Eu3+ ions
AU - Devaraja, C.
AU - Jagadeesha Gowda, G. V.
AU - Keshavamurthy, K.
AU - Eraiah, B.
AU - Devarajulu, G.
AU - Jagannath, G.
N1 - Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/7
Y1 - 2020/7
N2 - 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.
AB - 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.
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U2 - 10.1016/j.vacuum.2020.109426
DO - 10.1016/j.vacuum.2020.109426
M3 - Article
AN - SCOPUS:85084033010
SN - 0042-207X
VL - 177
JO - Vacuum
JF - Vacuum
M1 - 109426
ER -