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Title of article :
Application of molecular dynamics techniques and luminescent probes to the study of glass structure: the SiO2–GeO2 case
Author/Authors :
Bernard، نويسنده , , Stéphane Chaussedent، نويسنده , , S and Monteil، نويسنده , , A and Balu، نويسنده , , N and Obriot، نويسنده , , J and Duverger، نويسنده , , C and Ferrari، نويسنده , , M and Bouazaoui، نويسنده , , Kinowski، نويسنده , , C and Turrell، نويسنده , , S، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2001
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Abstract :
In this paper, we report on the results obtained from molecular dynamic simulation of a Eu3+-doped germanosilicate glass. This simulation provides further information on the structure. In particular it reveals a homogeneous distribution of SiO4 and GeO4 units, a decrease of defects compared to SiO2 and GeO2 glasses, and a trend to clustering of the doping ions. Using the modified crystal-field theory, the luminescence spectroscopic properties have been computed and comparison with experimental data has allowed a correlation of the spectral features with two main types of local environment depending on the coordination number and on the medium-range arrangement around the doping ions.
Journal title :
Journal of Non-Crystalline Solids
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Link To Document :