Luminescence behavior of Er{sup 3+} doped glass ceramics containing Sr{sub 2}RF{sub 7} (R=Y,Gd,La) nanocrystals

Journal Article · Fri Aug 15 04:00:00 EDT 2008 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.2969039· OSTI ID:21137446

Xvsheng, Qiao; Xianping, Fan; Minquan, Wang; Hui, Yang ^[1]; Zhang, Xianghua ^[2]

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1. Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027 (China)
2. UMR-CNRS 6512 'Verres et Ceramiques', Institut de Chimie de Rennes, Universite de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex (France)

The luminescence behaviors of Er{sup 3+} doped glass ceramics containing Sr{sub 2}RF{sub 7} (R=Y,Gd,La) nanocrystals were investigated. The formation of Sr{sub 2}RF{sub 7} nanocrystals in the glass ceramics was confirmed by x-ray diffraction and high resolution transmission electron microscopy. Energy dispersive x-ray spectroscopy analysis showed that the Er{sup 3+} ions were efficiently incorporated in Sr{sub 2}GdF{sub 7} nanocrystals. The efficient upconversion luminescence of the Er{sup 3+} in the glass ceramics can be observed. The lifetime of the Er{sup 3+} in the glass ceramics was found to be much longer than that in the glass due to the lower phonon energy of fluoride crystals when Er{sup 3+} entered efficiently fluoride crystals in the glass ceramics.

• OSTI ID: 21137446
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 4 Vol. 104; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERAMICS
CHEMICAL ANALYSIS
CRYSTALS
DOPED MATERIALS
ERBIUM IONS
FLUORIDES
GADOLINIUM COMPOUNDS
GLASS
LANTHANUM COMPOUNDS
NANOSTRUCTURES
PHONONS
PHOTOLUMINESCENCE
STRONTIUM COMPOUNDS
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION
X-RAY SPECTROSCOPY
YTTRIUM COMPOUNDS