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Local structures of rare-earth ions in glasses : The 'crystal-chemistry' approach

Wang, J., Brocklesby, W.S., Lincoln, J.R., Townsend, J.E. and Payne, D.N. (1993) Local structures of rare-earth ions in glasses : The 'crystal-chemistry' approach Journal of Non-Crystalline Solids, 163, (3), pp. 261-267. (doi:10.1016/0022-3093(93)91303-K).

Record type: Article


A 'crystal-chemistry' model is proposed to evaluate the rare-earth local structure in glass based on the modified-random-network (MRN) model in glass structure. Three influential factors are summarized, concerning the coordination number, the regularity of the site around the ion. and the spacing between ions. The spectral properties of rare-earth ions in glasses is well described and predicted by the proposed 'crystal-chemistry' model. The concentration-quenching effect of rare-earth ions in glasses in terms of ion-ion separation is analyzed by this model in relation to the role as glass-modifier or glass-intermediate of the rare-earth ion in the glass. The model suggests that glasses in which the rare-earth ions act as intermediates are likely to show less concentration-quenching effect.

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Published date: 1993


Local EPrints ID: 78289
ISSN: 0022-3093
PURE UUID: b7c3e2d9-451e-4586-8eb7-b39ca3d1ea2a
ORCID for W.S. Brocklesby: ORCID iD

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:25

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Author: J. Wang
Author: W.S. Brocklesby ORCID iD
Author: J.R. Lincoln
Author: J.E. Townsend
Author: D.N. Payne

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