Microstructure and luminescence of transparent glass ceramic containing Er 3+ :BaF 2 nano-crystals

Microstructure and luminescence of transparent glass ceramic containing Er 3+ :BaF 2 nano-crystals Transparent BaF 2 –SiO 2 glass ceramics doped with different content of Er 3+ were prepared by sol–gel method. The microstructural evolution of the samples was studied with X-ray diffraction (XRD), transmission electron microscope (TEM), absorption and infrared spectra (IR). BaF 2 nano-crystals with 2–15 nm in size, depending on the crystallization temperature, distributed homogeneously among the amorphous silica matrix. The BaF 2 lattice parameters decreased with the increasing of Er 3+ doping, indicating the incorporation of Er 3+ into nano-crystals, which was further confirmed by energy dispersive X-ray spectroscopy (EDS) and absorption spectra analysis. The upconversion emissions of Er 3+ emerged under the excitation at 980 nm for glass ceramic heat-treated at 800 °C. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Solid State Chemistry Elsevier

Microstructure and luminescence of transparent glass ceramic containing Er 3+ :BaF 2 nano-crystals

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Publisher
Elsevier
Copyright
Copyright © 2005 Elsevier Inc.
ISSN
0022-4596
eISSN
1095-726X
DOI
10.1016/j.jssc.2005.11.010
Publisher site
See Article on Publisher Site

Abstract

Transparent BaF 2 –SiO 2 glass ceramics doped with different content of Er 3+ were prepared by sol–gel method. The microstructural evolution of the samples was studied with X-ray diffraction (XRD), transmission electron microscope (TEM), absorption and infrared spectra (IR). BaF 2 nano-crystals with 2–15 nm in size, depending on the crystallization temperature, distributed homogeneously among the amorphous silica matrix. The BaF 2 lattice parameters decreased with the increasing of Er 3+ doping, indicating the incorporation of Er 3+ into nano-crystals, which was further confirmed by energy dispersive X-ray spectroscopy (EDS) and absorption spectra analysis. The upconversion emissions of Er 3+ emerged under the excitation at 980 nm for glass ceramic heat-treated at 800 °C.

Journal

Journal of Solid State ChemistryElsevier

Published: Feb 1, 2006

References

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