Fluorescence line narrowing and Judd-Ofelt theory analyses of Eu3+-doped low-silica calcium aluminosilicate glass and glass-ceramic

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Details zur Publikation

Autor(en): Muniz RF, de Ligny D, Sandrini M, Zanuto VS, Medina AN, Rohling JH, Aranda NB, Baesso ML, Guyot Y
Zeitschrift: Journal of Luminescence
Verlag: ELSEVIER SCIENCE BV
Jahr der Veröffentlichung: 2018
Band: 201
Seitenbereich: 123-128
ISSN: 0022-2313


Abstract

Eu-doped calcium aluminosilicate glass and glass-ceramic were synthesized and studied by site-selective spectroscopy. Using both broadband excitation and fluorescence line narrowing techniques, the D-5(0) -> F-7(1) emission transition was studied under resonant excitation at different wavelengths within the F-7(0) -> D-5(0) band. In order to explore the local structure of the systems, crystal-field analysis was applied assuming C-2v site symmetry. Moreover, from the emission spectra of glass and glass-ceramic systems, Judd-Ofelt parameters Omega(t) (t= 2, 4) were considered. Transition probability (A), stimulated emission cross-section (sigma), radiative lifetime (tau(R)) and branching ratios (beta) due to the transition D-5(0) -> F-7(J) (J = 1, 2, 3 and 4) of Eu3+ ions were evaluated in different local fields and their relative variations were discussed. The crystallization process, which converted the glass into glass-ceramic, promoted an important enhancement in the quantum efficiency, which was improved from 45% to 60%.


FAU-Autoren / FAU-Herausgeber

de Ligny, Dominique Prof. Dr.
Professur für Werkstoffwissenschaften (Glas und Keramik)


Autor(en) der externen Einrichtung(en)
Universidade Estadual de Maringá (UEM) / Maringá State University
Université Claude Bernard Lyon 1 (UCB)


Zitierweisen

APA:
Muniz, R.F., de Ligny, D., Sandrini, M., Zanuto, V.S., Medina, A.N., Rohling, J.H.,... Guyot, Y. (2018). Fluorescence line narrowing and Judd-Ofelt theory analyses of Eu3+-doped low-silica calcium aluminosilicate glass and glass-ceramic. Journal of Luminescence, 201, 123-128. https://dx.doi.org/10.1016/j.jlumin.2018.04.027

MLA:
Muniz, R. F., et al. "Fluorescence line narrowing and Judd-Ofelt theory analyses of Eu3+-doped low-silica calcium aluminosilicate glass and glass-ceramic." Journal of Luminescence 201 (2018): 123-128.

BibTeX: 

Zuletzt aktualisiert 2019-04-01 um 16:10