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Crystallisation effects on rare earth dopants in oxyfluoride glass ceramics

Crystallisation effects on rare earth dopants in oxyfluoride glass ceramics
Crystallisation effects on rare earth dopants in oxyfluoride glass ceramics
Transparent oxyfluoride glass-ceramic materials are of significant interest for the production of new optoelectronic devices. In this paper we report measurements of the detailed spectroscopy of rare earth dopants in both an oxyfluoride transparent glass ceramic and its glass precursor. We show that several spectroscopically different sites exist for the rare earth even in the glass precursor material, where a significant amount of the rare earth is already coordinated with fluorine. In the glass-ceramic material, these glassy fluorine-coordinated sites are replaced with crystalline sites, but a significant fraction of the rare earth ions are still within the glass phase. The fraction of rare earth ion that is incorporated into the crystalline phase is estimated from the rare earth spectroscopy, and the role of the rare earth coordination in the precursor glass is discussed.
Glass ceramics, Fluorescence, Rare earth ions, Spectroscopy, Nanocrystals, Partitioning
383-390
Goutaland, F.
f91e7202-f4c1-4659-bfce-5c7cb4901b52
Jander, P.
f1ce5878-a2c0-4f48-8521-cc851cfc4125
Brocklesby, W.S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Dai, G.
abe9f14d-0ebf-4b43-bf25-c04c5d3bb862
Goutaland, F.
f91e7202-f4c1-4659-bfce-5c7cb4901b52
Jander, P.
f1ce5878-a2c0-4f48-8521-cc851cfc4125
Brocklesby, W.S.
c53ca2f6-db65-4e19-ad00-eebeb2e6de67
Dai, G.
abe9f14d-0ebf-4b43-bf25-c04c5d3bb862

Goutaland, F., Jander, P., Brocklesby, W.S. and Dai, G. (2003) Crystallisation effects on rare earth dopants in oxyfluoride glass ceramics. Optical Materials, 22 (4), 383-390. (doi:10.1016/S0925-3467(02)00373-7).

Record type: Article

Abstract

Transparent oxyfluoride glass-ceramic materials are of significant interest for the production of new optoelectronic devices. In this paper we report measurements of the detailed spectroscopy of rare earth dopants in both an oxyfluoride transparent glass ceramic and its glass precursor. We show that several spectroscopically different sites exist for the rare earth even in the glass precursor material, where a significant amount of the rare earth is already coordinated with fluorine. In the glass-ceramic material, these glassy fluorine-coordinated sites are replaced with crystalline sites, but a significant fraction of the rare earth ions are still within the glass phase. The fraction of rare earth ion that is incorporated into the crystalline phase is estimated from the rare earth spectroscopy, and the role of the rare earth coordination in the precursor glass is discussed.

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More information

Published date: 2003
Keywords: Glass ceramics, Fluorescence, Rare earth ions, Spectroscopy, Nanocrystals, Partitioning

Identifiers

Local EPrints ID: 13864
URI: http://eprints.soton.ac.uk/id/eprint/13864
PURE UUID: 3df762a3-95bc-483f-8a5c-5ee9e3bf5568
ORCID for W.S. Brocklesby: ORCID iD orcid.org/0000-0002-2123-6712

Catalogue record

Date deposited: 05 Jan 2005
Last modified: 15 Sep 2021 01:36

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