Colorless transparent fluorescence material: Sintered porous glass containing rare-earth and transition-metal ions

Transparent fluorescence oxide glass with high emission yields has been prepared. Porous glass was impregnated with rare-earth and transition-metal ions and consequently sintered at 1100 ° C into a compact nonporous glass. Reduction sintering is indispensable for obtaining fluorescence glass with hi...

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Bibliographic Details
Published in:Applied physics letters 2005-06, Vol.86 (23), p.231908-231908-3
Main Authors: Chen, Danping, Miyoshi, Hiroshi, Akai, Tomoko, Yazawa, Tetsuo
Format: Article
Language:English
Subjects:
CERIUM IONS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COPPER IONS
EUROPIUM IONS
FLUORESCENCE
GLASS
OPACITY
POROUS MATERIALS
SILICON OXIDES
SINTERING
TIN IONS
ULTRAVIOLET RADIATION
VISIBLE RADIATION
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Summary:Transparent fluorescence oxide glass with high emission yields has been prepared. Porous glass was impregnated with rare-earth and transition-metal ions and consequently sintered at 1100 ° C into a compact nonporous glass. Reduction sintering is indispensable for obtaining fluorescence glass with high emission yield. Sintering of glass impregnated with Eu ions in a reducing atmosphere enhances the emission intensity by about 15 times than that sintered in air. The Eu 2 + and Ce 3 + ions and Sn 2 + and Cu + ions incorporated in Si O 2 glass obtained by reduction sintering exhibit intense fluorescence in the near-ultraviolet and visible ranges, their emission yields are 97%, 70%, 100%, and 90%, respectively.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1946897