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), 261-267. (doi:10.1016/0022-3093(93)91303-K).

Download

Full text not available from this repository.

Description/Abstract

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.

Item Type: Article
ISSNs: 0022-3093 (print)
Related URLs:
Subjects: Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: University Structure - Pre August 2011 > Optoelectronics Research Centre
ePrint ID: 78289
Date Deposited: 11 Mar 2010
Last Modified: 27 Mar 2014 18:58
URI: http://eprints.soton.ac.uk/id/eprint/78289

Actions (login required)

View Item View Item