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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Published in | Inorganic materials Vol. 46; no. 5; pp. 456 - 459 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Dordrecht
SP MAIK Nauka/Interperiodica
01.05.2010
|
Subjects | |
Online Access | Get full text |
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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. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0020-1685 1608-3172 |
DOI: | 10.1134/S0020168510050031 |