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Role of Si in the Luminescence of AlN:Eu,Si Phosphors
Author(s) -
Dierre Benjamin,
Yuan Xiao L.,
Inoue Kazuo,
Hirosaki Naoto,
Xie RongJun,
Sekiguchi Takashi
Publication year - 2009
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2009.03048.x
Subject(s) - cathodoluminescence , luminescence , phosphor , doping , materials science , quenching (fluorescence) , analytical chemistry (journal) , mineralogy , optoelectronics , fluorescence , chemistry , optics , physics , chromatography
The luminescence properties of Si,Eu‐codoped AlN phosphors were investigated by means of cathodoluminescence. The concentration of Eu was kept constant, while that of Si was varied from 0 to 9.0 at.% using two different Si‐source starting powders, Si 3 N 4 and SiC. The luminescence of Eu 2+ in AlN is only observed for samples doped with Si. On the other hand, a concentration quenching is observed for samples doped with high amount of Si from Si 3 N 4 while not for those doped from SiC. These results show the importance of Si in the luminescence properties of Eu 2+ ‐doped AlN.