Volume 4, Number 3 (2019)
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Home > Journals > SCIREA Journal of Physics > Archive > Paper Information

Photo thermo-luminescence of crystal CaGa2Se4: Еu

Volume 4, Issue 3, June 2019    |    PP. 63-68    |PDF (285 K)|    Pub. Date: June 4, 2019
83 Downloads     389 Views  

Author(s)
O.B.Taghiyev, Institute of Physics, National Academy of Sciences of Azerbaijan; Moscow State University, Baku branch
Т.Sh.Qashimova, Institute of Physics, National Academy of Sciences of Azerbaijan
К.О. Taghiyev, Institute of Catalysis and Inorganic Chemistry

Abstract
Thio- and seleno- halates of rare-earth elements (Ca, Sr, Ba)Ga2(S, Se)4 are part of compounds with general formula МА2ШВ4VI(М – Ba, Sr, Ca; AIII- Ga, Al; B4VI – S, Se). Compounds type of МА2ШВ4VI were first obtained by authors [1], where sulphides and selenides are part of 12 analogous composites, which crystalize in orthorhombic system. There are three studies, which contain evident of six classes of this compounds [2]. Crystal structure of three classes of the above mentioned composites - BaАl2Se4, BaGa2Se4 and CaGa2Se4– is presented in [3], where it was determined, that atoms Bа and Са are statistically distributed and occupy anti prismatic spaced on 50%. Luminescent properties of crystals with generic formula МА2ШВ4VI are presented in studies [4-9]

Keywords
photoluminescence, spectra of excitation and emission, activation energy

Cite this paper
O.B.Taghiyev, Т.Sh.Qashimova, К.О. Taghiyev, Photo thermo-luminescence of crystal CaGa2Se4: Еu, SCIREA Journal of Physics. Vol. 4 , No. 3 , 2019 , pp. 63 - 68 .

References

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[ 2 ] Klee W., Schafer H.Z.CaAl2Se4 and SrAl2Se4-Struktur-varianten des TlSe- Type. CaAl2Se4 and SrAl2Se4 – Variante of the TlSe- Structure.-Z. Natur-Forsch., 1978,33b,pp. 829-833.
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