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Fluorescence Line Narrowing Studies of Eu3+-Doped Silica Gel-Glasses

Published online by Cambridge University Press:  21 February 2011

M. J. Lochhead  and
K. L. Bray
M. J. Lochhead
Affiliation:
Department of Chemical Engineering, University of Wisconsin, 1415 Johnson Dr., Madison, WI 53706
K. L. Bray
Affiliation:
Department of Chemical Engineering and Materials Science Program, University of Wisconsin, 1415 Johnson Dr., Madison, WI 53706
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Abstract

Broadband fluorescence and fluorescence line narrowing (FLN) spectra are presented for Eu3+ ions in Eu2O3-SiO3 and Eu2O3-Al2O3-SiO3 systems prepared by the sol-gel process. Clustering of rare earth ions in silica glass can be a limiting factor in the design and engineering of optical device materials. The addition of Al2O3 is known to help disperse rare earth ions in sol-gel silica. In order to develop a more detailed understanding of how Eu3+ is incorporated in these materials, time-resolved, laser-induced FLN studies at 77 K have been performed using a pulsed dye laser to selectively excite subsets of ions in the inhomogeneously broadened 7F0⇆ 5D0 manifold. Fluorescence spectra are discussed in terms of rare earth ion clustering, energy transfer, and bonding site symmetry. It is concluded that Eu3+ ions cluster in sol-gel silica and that the addition of alumina assists in dispersing Eu3+ ions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 346: Symposium N – Better Ceramics Through Chemistry VI , 1994 , 745
Copyright
Copyright © Materials Research Society 1998

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References

REFERENCES

1 Sakka, S. in Sol-Gel Optics II. edited by Mackenzie, John D. (SPIE 1758, 1992) pp. 2-13 Google Scholar
2 Arai, K., Namikawa, H., Kumata, K., Honda, T., Ishii, Y., Handa, T., J. Appl. Phys. 59, 3430(1986).Google Scholar
3 Thomas, I.M., Payne, S.A., Wilke, G.D., J. Non-Cryst. Solids 151, 183 (1992).Google Scholar
4 Fujiyana, T., Hori, M., Sasaki, M., J. Non-Cryst. Solids 121, 273 (1990).Google Scholar
5 Moreshead, W.V., Nogues, J.-L.R., Krabill, R.H., J. Non-Cryst. Solids 121, 267 (1990).Google Scholar
6 Yen, W.M., J. Lumin. 18/19, 639 (1979).Google Scholar
7 Campostrini, R., Carturan, G., Ferrari, M., Montagna, M., Pilla, O., J. Mater. Res. 7, 745 (992).Google Scholar
8 McDonagh, C., Ennis, G., Marron, P., O'Kelly, B., Tang, Z.R., McGilp, J.F., J. Non-Cryst. Solids 147&148, 97 (1992).Google Scholar
9 Levy, D., Reisfeld, R., Avnir, D., Chem. Phys. Lett. 109, 593 (1984).Google Scholar
10 Brecher, C. and Riseberg, L.A., Phys. Rev. B, 13, 81 (1976).Google Scholar
11 Lochhead, M.J. and Bray, K.L., accepted for publication in J. Non-Cryst. Solids (1994).Google Scholar
12 Peacock, R.D., Structure and Bonding 22, 83 (1975).Google Scholar
13 Capobianco, J.A., Proulx, P.R., Raspa, N., Chem. Phys. Lett. 160, 591 (1989).Google Scholar