期刊
JAPANESE JOURNAL OF APPLIED PHYSICS
卷 49, 期 2, 页码 -出版社
JAPAN SOC APPLIED PHYSICS
DOI: 10.1143/JJAP.49.022602
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资金
- China Scholarship Council (CSC)
- University of Science and Technology of China (USTC)
- UMR 5620 CNRS
- UCBLyon1
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)(3)Al5O12 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)(3)Al5O12 ceramic. A strong Ce3+ segregation and spatial distribution between grains and grain boundaries were observed. (C) 2010 The Japan Society of Applied Physics
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