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Photoluminescence properties of yttria-stabilized zirconia single crystal

Published online by Cambridge University Press:  03 March 2011

Hiromitsu Nakajima ,
Toshiyuki Mori  and
Shinji Itoh
Hiromitsu Nakajima*
Affiliation:
Ecomaterials Center, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
Toshiyuki Mori
Affiliation:
Ecomaterials Center, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
Shinji Itoh
Affiliation:
Materials Analysis Station, National Institute for Materials Science, Sengen 1-2-1, Tsukuba, Ibaraki 305-0047, Japan
*
a) Address all correspondence to this author. e-mail: nakajima.hiromitsu@nims.go.jp
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Abstract

The photoluminescence (PL) and PL excitation spectra of the single-crystal samples of yttria-stabilized zirconia (YSZ) were measured. We found that the PL spectra of two samples for the 280-nm excitation significantly differ from one another in intensity, although the two samples have the same macrostructure and the same chemical composition. These results indicate that PL spectroscopy is a useful method for studying the microstructure of YSZ. The result of the trace-impurity analysis suggests that the large difference in PL intensity between the two samples can be explained by considering the influence of Nb in the YSZ sample. It seems that Nb in YSZ caused an yttria-associated defect. The broad emission band around 550 nm would be attributed to this defect. These results suggest that information can be obtained from its PL measurement not only on the yttria-associated defect, but also on the trace impurity in the YSZ.

Keywords

LuminescenceDefectsMicrostructure
Type
Articles
Information
Journal of Materials Research , Volume 19 , Issue 8 , August 2004 , pp. 2457 - 2461
Copyright
Copyright © Materials Research Society 2004

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