Luminescence of Eu3+ in Gd2(Zr1-yTiy)2O7:Eu3

A solid solution of Gd2(Zr1-yTiy)2O7 and (Gd0.98Eu0.02)2(Zr1-yTiy)2O7 was synthesised and the crystal structure was examined using Eu3+ luminescence as a probe. From the results it was concluded that the structure of Gd2(Zr1-yTiy)2O7 approaches an ideal or strict pyrochlore-type structure with incre...

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Bibliographic Details
Published inJournal of materials science letters Vol. 12; no. 21; pp. 1690 - 1692
Main Authors OTAKI, H, KIDO, H, TAKEUCHI, N
Format Journal Article
LanguageEnglish
Published Dordrecht Kluwer Academic Publishers 1993
Subjects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other nonmetallic inorganics
Other nonmetals
Other solid inorganic materials
Photoluminescence
Physics
Visible and ultraviolet spectra
Inorganic compounds
Transition element compounds
Luminescence
Doped materials
XRD
Rare earth compounds
Experimental study
Lattice parameters
Gadolinium oxides
Titanium oxides
Europium additions
Reflection spectrum
Solid solutions
Zirconium oxides
Chemical composition
Quaternary compounds
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Summary:A solid solution of Gd2(Zr1-yTiy)2O7 and (Gd0.98Eu0.02)2(Zr1-yTiy)2O7 was synthesised and the crystal structure was examined using Eu3+ luminescence as a probe. From the results it was concluded that the structure of Gd2(Zr1-yTiy)2O7 approaches an ideal or strict pyrochlore-type structure with increasing amount of Ti. The fluorescence mechanism for (Gd0.98Eu0.02)2(Zr1-yTiy)2O7 was suggested. When samples were excited by 254 nm light, Ti-O clusters absorbed the photon energy, which was transferred to the Eu3+ centres. 5 refs.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0261-8028
1573-4811
DOI:10.1007/BF00418833