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Inne
Thermal quenching mechanisms of the Eu3+ luminescence in Ca9Al(PO4)7 obtained by citric route.
Autorzy
Rok wydania
2013
Czasopismo
Numer woluminu
48
Strony
337-342
DOI
10.1016/j.materresbull.2012.10.034
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The citric route was employed for synthesis of the pure phase Ca9Al(PO4)7:Eu3+ (CAlP:Eu3+) powders as an attractive alternative to the solid state reaction (no need of multistep and long thermal treatment). Structural properties of the final product were studied by means of X-ray diffraction as well as Rietveld refinement was conducted in order to calculate the cell parameters. The thermal behavior of the emission was studied using excitation line well matched with the 7F0 → 5D4 absorption band covering broad range of temperature. Activation energy was estimated to be equal to 10,550 cm−1. The thermal behavior of the Eu3+ luminescence in CAlP crystal lattice shown that the almost 80% of intensity is kept up to 430 K.
Słowa kluczowe
Inorganic compounds, optical materials, Chemical synthesis, luminescence
Adres publiczny
http://dx.doi.org/10.1016/j.materresbull.2012.10.034
Strona internetowa wydawcy
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