LaYO_{3}:Sm^{3+} Nanocrystalline Phosphor: Preparation and Emission Properties

• Authors: V. Đorđević , M. Nikolić , Ž. Antić , M. Mitrić , M. Dramićanin
• Languages of publication: EN

Abstracts

EN

Samarium doped LaYO_{3} nanocrystalline phosphor powders are obtained by polymer complex solution method. Stoichiometric quantities of La_{2}O_{3}, Y_{2}O_{3} and for dopant ions Sm_{2}O_{3} were dissolved in hot nitric acid. Polyethylene glycol was added in solutions in 1:1 mass ratio to corresponding metal nitrates to form gel. The gel is combusted and annealed at 800°C for two hours to form nanopowder samples. Crystalline structure and phase purity is checked by X-ray diffraction and show that this material is synthesized in cubic bixbyite type structure for the first time. Luminescence properties of Sm^{3+} doped LaYO_{3} exhibited characteristic orange-red emission coming from the intra-4f-shell ^{4}G_{5/2}→^{6}H_{J} electron transitions with emission decay of 1.5 ms. Energy level positions are derived from emission and excitation spectra.

Keywords

EN

71.20.Eh; 78.55.Hx; 81.20.Ka; 81.07.Bc

Discipline

• 71.20.Eh: Rare earth metals and alloys
• 81.07.Bc: Nanocrystalline materials
• 81.20.Ka: Chemical synthesis; combustion synthesis(for electrochemical synthesis, see 82.45.Aa)
• 78.55.Hx: Other solid inorganic materials

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2011
• Volume: 120
• Issue: 2
• Pages: 303-305

Dates

published

2011-08

Contributors

author

V. Đorđević

• Vinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia

author

M. Nikolić

• Vinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia

author

Ž. Antić

• Vinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia

author

M. Mitrić

• Vinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia

author

M. Dramićanin

• Vinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia

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Identifiers

DOI

10.12693/APhysPolA.120.303