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Spectroscopic Properties and Phase-separation Effect of Europium-doped Sodium Borosilicate Glasses

Published online by Cambridge University Press:  10 February 2011

J. Y. Ding ,
C.K. Yin ,
P.Y. Shih  and
S.W. Yung
J. Y. Ding
Affiliation:
Research Center for Optical Fibers and Glasses, Department of Ceramic and Materials Engineering, National Lien-Ho Institute of Technology, Miao-Li 360, Taiwan, Republic of China
C.K. Yin
Affiliation:
Research Center for Optical Fibers and Glasses, Department of Ceramic and Materials Engineering, National Lien-Ho Institute of Technology, Miao-Li 360, Taiwan, Republic of China
P.Y. Shih
Affiliation:
Research Center for Optical Fibers and Glasses, Department of Ceramic and Materials Engineering, National Lien-Ho Institute of Technology, Miao-Li 360, Taiwan, Republic of China
S.W. Yung
Affiliation:
Research Center for Optical Fibers and Glasses, Department of Ceramic and Materials Engineering, National Lien-Ho Institute of Technology, Miao-Li 360, Taiwan, Republic of China
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Abstract

Europium oxide has been doped into sodium borosilicate (NBS) glasses (8Na2O-32B2O3- 60SiO2- xEu2O3) at various concentration levels. The glass raw materials were calcined at 800°C and melted at 1380°C and transparent glasses with slightly red color were obtained by quenching the melt in air. Thermal analyses and other experimental results showed excellent glass forming capability with Tg around 480 to 520°C at various doping concentrations. A typical deformation temperature of the europium-doped NBS glasses is around 570-660°C with densities around 2.45 to 2.6 g/cm3. The doped NBS glasses were further heat-treated at 560°C for phase-separation. Scanning electronic microscopy (SEM), energy dispersive spectroscopy (EDS), thermomechanical analysis (TMA), optical absorption spectrometer and fluorescence emission spectrometer were used to explore properties of the glasses.

Keywords

europium-dopingphase-separationsodiumborosilicateglasses
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 770: Symposium I – Optoelectronics of Group-IV-Based Materials , 2003 , I4.3
Copyright
Copyright © Materials Research Society 2003

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