Evidence of the Inhomogeneous Ce3+ Distribution across Grain Boundaries in Transparent Polycrystalline Ce3+-Doped (Gd,Y)3Al5O12 Garnet Optical Ceramics

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This paper characterizes the inhomogeneous rare earth activator distribution across grain boundaries in transparent rare earth doped optical ceramics. Ce3+ has been selected due to its high intensity fluorescence in visible range under blue or UV excitations, especially in (Gd,Y)3Al5O12 disordered garnet ceramic for scintillator application. Optical spectroscopy and visualization of grains and grain boundaries based on spatially resolved techniques as imaging confocal microscopy (ICM) and transmission electronic microscopy (TEM) have been used for 0.5% Ce3+-doped (Gd,Y)3Al5O12 ceramic. A strong Ce3+ segregation and spatial distribution between grains and grain boundaries were observed.
2010-02-25

著者

Cedric Mancini
Physico Chimie des Matériaux Luminescents (LPCML), Université de Lyon, Université Claude Bernard/Lyon 1, UMR 5620 CNRS, La Doua, Villeurbanne 69622, France
Georges Boulon
Physico Chimie des Matériaux Luminescents (LPCML), Université de Lyon, Université Claude Bernard/Lyon 1, UMR 5620 CNRS, La Doua, Villeurbanne 69622, France
Zhao Wei
Physico Chimie des Matériaux Luminescents (LPCML), Université de Lyon, Université Claude Bernard/Lyon 1, UMR 5620 CNRS, La Doua, Villeurbanne 69622, France
Mancini Cedric
Physico Chimie des Matériaux Luminescents (LPCML), Université de Lyon, Université Claude Bernard/Lyon 1, UMR 5620 CNRS, La Doua, Villeurbanne 69622, France
Amans David
Physico Chimie des Matériaux Luminescents (LPCML), Université de Lyon, Université Claude Bernard/Lyon 1, UMR 5620 CNRS, La Doua, Villeurbanne 69622, France
Thierry Epicier
Matériaux, Ingénierie et Sciences (MATEIS), UMR 5510 CNRS, Université de Lyon, INSA-Lyon, 7 avenue Jean Capelle, 69621 Villeurbanne, France
Yin Min
University of Science and Technology of China, Hefei, Anhui 230026, China
Hideki Yagi
Takuma Works, Konoshima Chemical Co., Ltd., 80 Koda, Takuma, Mitoyo, Kagawa 769-1103, Japan
Takagimi Yanagitani
Takuma Works, Konoshima Chemical Co., Ltd., 80 Koda, Takuma, Mitoyo, Kagawa 769-1103, Japan
Takayuki Yanagida
Takuma Works, Konoshima Chemical Co., Ltd., 80 Koda, Takuma, Mitoyo, Kagawa 769-1103, Japan
Akira Yoshikawa
IMRAM, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
David Amans
Physico Chimie des Matériaux Luminescents (LPCML), Université de Lyon, Université Claude Bernard/Lyon 1, UMR 5620 CNRS, La Doua, Villeurbanne 69622, France
Thierry Epicier
Matériaux, Ingénierie et Sciences (MATEIS), UMR 5510 CNRS, Université de Lyon, INSA-Lyon, 7 avenue Jean Capelle, 69621 Villeurbanne, France
Zhao Wei
Physical Chemistry of Luminescent Materials, University of Lyon, Claude Bernard University Lyon 1, UMR 5620 CNRS, Villeurbanne 69622, France

Evidence of the Inhomogeneous Ce3+ Distribution across Grain Boundaries in Transparent Polycrystalline Ce3+-Doped (Gd,Y)3Al5O12 Garnet Optical Ceramics

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