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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Optical and structural properties of neodymium-doped KPO3-MoO3 glasses

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Author(s):
Galleani, Gustavo ; Santagneli, Silvia H. ; Ribeiro, Sidney J. L. ; Messaddeq, Younes ; Maia, Lauro J. Q. ; Nunes, Luiz A. O.
Total Authors: 6
Document type: Journal article
Source: Journal of Non-Crystalline Solids; v. 458, p. 65-68, FEB 15 2017.
Web of Science Citations: 4
Abstract

Glasses of composition (mol%) 75KPO(3)-(25-x)MoO3-xNd(3+), with 0 <= x <= 1.0, have been prepared and characterized. Thermal and structural properties of the glasses were studied by Differential Scanning Calorimetry (DSC) and Raman scattering spectroscopy. The thermal stability against crystallization on heating was evaluated. Absorption spectra in the visible and infrared regions were collected and analysed, and photoluminescence excitation and emission spectra were obtained under 804 nm diode laser excitations. Using the Judd-Ofelt formalism, the Omega(2), Omega(4), and,Omega(6) parameters and the radiative lifetime (tau(r)) were calculated for the F-4(3/2) excited state. A fluorescence quantum efficiency for this level (QE = tau f /tau(r)) of 58% was determined for glass with x = 0.6. (C) 2016 Elsevier B.V. All rights reserved. (AU)