Mechanism of cluster dissolution of Yb-doped ...
Type de document :
Article dans une revue scientifique
URL permanente :
Titre :
Mechanism of cluster dissolution of Yb-doped high-silica lanthanum aluminosilicate glass: Investigation by spectroscopic and structural characterization
Auteur(s) :
Wang, Xue [Auteur]
Chinese Academy of Sciences [Beijing] [CAS]
Zhang, Ruili [Auteur]
Chinese Academy of Sciences [Beijing] [CAS]
Ren, Jinjun [Auteur]
Chinese Academy of Sciences [Beijing] [CAS]
Vezin, Herve [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Fan, Shaohua [Auteur]
Chinese Academy of Sciences [Beijing] [CAS]
Yu, Chunlei [Auteur]
Chinese Academy of Sciences [Beijing] [CAS]
Chen, Danping [Auteur]
Chinese Academy of Sciences [Beijing] [CAS]
Wang, Shikai [Auteur]
Chinese Academy of Sciences [Beijing] [CAS]
Hu, Lili [Auteur]
Chinese Academy of Sciences [Beijing] [CAS]
Chinese Academy of Sciences [Beijing] [CAS]
Zhang, Ruili [Auteur]
Chinese Academy of Sciences [Beijing] [CAS]
Ren, Jinjun [Auteur]
Chinese Academy of Sciences [Beijing] [CAS]
Vezin, Herve [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Fan, Shaohua [Auteur]
Chinese Academy of Sciences [Beijing] [CAS]
Yu, Chunlei [Auteur]
Chinese Academy of Sciences [Beijing] [CAS]
Chen, Danping [Auteur]
Chinese Academy of Sciences [Beijing] [CAS]
Wang, Shikai [Auteur]
Chinese Academy of Sciences [Beijing] [CAS]
Hu, Lili [Auteur]
Chinese Academy of Sciences [Beijing] [CAS]
Titre de la revue :
Journal of Alloys and Compounds
Numéro :
695
Pagination :
2339-2346
Éditeur :
Elsevier BV
Date de publication :
2017-02
ISSN :
0925-8388
Mot(s)-clé(s) en anglais :
Clusters dissolution
27Al and 29Si SSNMR
2D-HYSCORE
Spectroscopic characterization
27Al and 29Si SSNMR
2D-HYSCORE
Spectroscopic characterization
Discipline(s) HAL :
Chimie/Chimie théorique et/ou physique
Résumé en anglais : [en]
To investigate clusters of Yb ions and the effectiveness of lanthanum co-doping in dispersing and isolating Yb ions in silica glass, Yb-doped high-silica lanthanum aluminosilicate (LAS) glass with compositions Yb2O3single ...
Lire la suite >To investigate clusters of Yb ions and the effectiveness of lanthanum co-doping in dispersing and isolating Yb ions in silica glass, Yb-doped high-silica lanthanum aluminosilicate (LAS) glass with compositions Yb2O3single bondAl2O3single bondLa2O3single bondSiO2 was prepared by the sol–gel method combined with high temperature sintering. The glass structure and spectroscopic properties of Yb-doped high-silica LAS glass were studied in detail to explore the mechanism of cluster dissolution. 27Al and 29Si solid-state nuclear magnetic resonance (SSNMR) spectra were introduced to study the spatial distribution of the Yb ions in the glass. The spinning sideband patterns of the 27Al and 29Si NMR spectra showed that part of the Yb3+ ions in the vicinity of aluminium atoms transferred to Si ions with increasing La2O3 concentration. The results of two-dimensional hyperfine sublevel correlation (2D-HYSCORE) electron paramagnetic resonance (EPR) spectroscopy led to the conclusion that the vicinity of Yb3+ ions are mostly aluminum atoms for glass doped with Al and aluminum and silicon atoms for glass co-doped with Al and La. It was also found that Yb clusters exist in the form of Ybsingle bondOsingle bondYb bonds in high-concentration Yb-doped silica glass and that co-doping with La can replace these bonds with Ybsingle bondOsingle bondLa linkages to reduce the number of Yb3+ pairs. The fluorescence intensity and fluorescence lifetime of Yb increase steadily with increasing La2O3 concentration, which also indicates that the addition of La in silica glass can dissolve the Yb clusters. The results show that co-doping high-silica LAS glasses with La3+ ions is an ideal way to increase Yb solubility and decrease clustering.Lire moins >
Lire la suite >To investigate clusters of Yb ions and the effectiveness of lanthanum co-doping in dispersing and isolating Yb ions in silica glass, Yb-doped high-silica lanthanum aluminosilicate (LAS) glass with compositions Yb2O3single bondAl2O3single bondLa2O3single bondSiO2 was prepared by the sol–gel method combined with high temperature sintering. The glass structure and spectroscopic properties of Yb-doped high-silica LAS glass were studied in detail to explore the mechanism of cluster dissolution. 27Al and 29Si solid-state nuclear magnetic resonance (SSNMR) spectra were introduced to study the spatial distribution of the Yb ions in the glass. The spinning sideband patterns of the 27Al and 29Si NMR spectra showed that part of the Yb3+ ions in the vicinity of aluminium atoms transferred to Si ions with increasing La2O3 concentration. The results of two-dimensional hyperfine sublevel correlation (2D-HYSCORE) electron paramagnetic resonance (EPR) spectroscopy led to the conclusion that the vicinity of Yb3+ ions are mostly aluminum atoms for glass doped with Al and aluminum and silicon atoms for glass co-doped with Al and La. It was also found that Yb clusters exist in the form of Ybsingle bondOsingle bondYb bonds in high-concentration Yb-doped silica glass and that co-doping with La can replace these bonds with Ybsingle bondOsingle bondLa linkages to reduce the number of Yb3+ pairs. The fluorescence intensity and fluorescence lifetime of Yb increase steadily with increasing La2O3 concentration, which also indicates that the addition of La in silica glass can dissolve the Yb clusters. The results show that co-doping high-silica LAS glasses with La3+ ions is an ideal way to increase Yb solubility and decrease clustering.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
Université de Lille
CNRS
CNRS
Collections :
Équipe(s) de recherche :
Propriétés magnéto structurales des matériaux (PMSM)
Date de dépôt :
2021-06-17T13:25:08Z
2021-09-09T14:35:38Z
2021-09-10T10:41:25Z
2021-09-09T14:35:38Z
2021-09-10T10:41:25Z