Luminescence properties of Ca- and Yb-codoped SiAlON phosphors

Dierre, B., Yuan, X. L., Hirosaki, N., Xie, R. J. and Sekiguchi, T. (2008) Luminescence properties of Ca- and Yb-codoped SiAlON phosphors. Materials Science & Engineering. B, Solid-state Materials for Advanced Technology, 146 1-3: 80-83. doi:10.1016/j.mseb.2007.07.047


Author Dierre, B.
Yuan, X. L.
Hirosaki, N.
Xie, R. J.
Sekiguchi, T.
Title Luminescence properties of Ca- and Yb-codoped SiAlON phosphors
Journal name Materials Science & Engineering. B, Solid-state Materials for Advanced Technology   Check publisher's open access policy
ISSN 0921-5107
Publication date 2008-01-15
Year available 2007
Sub-type Article (original research)
DOI 10.1016/j.mseb.2007.07.047
Volume 146
Issue 1-3
Start page 80
End page 83
Total pages 4
Place of publication Switzerland
Publisher Elsevier Science
Language eng
Subject 0206 Quantum Physics
0912 Materials Engineering
Formatted abstract
Luminescence properties of SiAlON phosphors codoped with Ca and Yb were investigated by changing the host lattice composition. These modifications of the host lattice were obtained by replacing Si__N bonds by Al__N and Al__O bonds. Their photoluminescence (PL) and cathodoluminescence (CL) properties were measured and compared with each other. PL allows observing the influence of the host lattice modifications by measuring wider areas. CL can excite all luminescent centers, in particular the UV luminescence centers, even if their amount is small. Thus, two additional peaks in the ultraviolet and infrared regions were observed in CL, which is not observed by PL. This work suggests that the combination of PL and CL gives more understanding about the luminescence of SiAlON phosphors, in particular the role of the secondary phases on their properties.
Copyright © 2007 Elsevier B.V.

Keyword SiAlON
Ytterbium
Cathodoluminescence
Photoluminescence
Q-Index Code C1
Q-Index Status Provisional Code
Additional Notes Available online 13 August 2007.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Julius Kruttschnitt Mineral Research Centre Publications
Excellence in Research Australia (ERA) - Collection
 
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Created: Tue, 12 Jan 2010, 15:56:27 EST by June Temby on behalf of Sustainable Minerals Institute