Structure and photoluminescence of ZnGa2Se4:Eu2

The structure of undoped and europium-doped ZnGa 2 Se 4 has been studied, and the interplanar spacings, the Miller indices of the observed reflections, and their relative intensities have been determined. The photoluminescence spectra of ZnGa 2 Se 4 and ZnGa 2 Se 4 :Eu 2+ crystals have been measured...

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Bibliographic Details
Published inInorganic materials Vol. 46; no. 5; pp. 456 - 459
Main Authors Georgobiani, A. N., Tagiev, B. G., Guseinov, G. G., Kerimova, T. G., Tagiev, O. B., Asadullaeva, S. G.
Format Journal Article
LanguageEnglish
Published Dordrecht SP MAIK Nauka/Interperiodica 01.05.2010
Subjects
Band spectra
Bands
Chemistry
Chemistry and Materials Science
Crystals
Electronics
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Inorganic materials
Materials Science
Photoluminescence
Reflection
Spectra
Europium Atom
Tetragonal Prism
Iron Selenide
Chalcogen
Thiogallate
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Summary:The structure of undoped and europium-doped ZnGa 2 Se 4 has been studied, and the interplanar spacings, the Miller indices of the observed reflections, and their relative intensities have been determined. The photoluminescence spectra of ZnGa 2 Se 4 and ZnGa 2 Se 4 :Eu 2+ crystals have been measured at temperatures from 77 to 230 K. The 566-nm band in the spectrum of ZnGa 2 Se 4 :Eu 2+ is assigned to the Eu 2+ 4 f 6 5 d →4 f 7 ( 8 S 7/2 ) electronic transition, and the bands at 591 and 646 nm are attributed to transitions of donor-acceptor pairs.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168510050031