Near-Infrared Emission in Na5Y(WO4)4:Nd3

Luminescence in Na 5 Y(WO 4 ) 4 :Nd 3+ is investigated for the first time. The emission is in the near-infrared region. The well known 4 F 3/2 → 4 I 9/2 transition leads to most intense line at 1069 nm. The excitation and emission spectra are interpreted using the energy level diagram of Nd 3+ . The...

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Bibliographic Details
Published inPhysics of the solid state Vol. 66; no. 9; pp. 291 - 298
Main Authors Pusdekar, Ashvini, Ugemuge, N. S., Nafdey, R. A., Moharil, S. V.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.09.2024
Springer Nature B.V
Subjects
Emission analysis
Emission spectra
Energy levels
Energy transfer
Excitation spectra
Line spectra
Luminescence
Near infrared radiation
Physics
Physics and Astronomy
Solid State Physics
tungstate
phosphor
luminescence
Nd
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Summary:Luminescence in Na 5 Y(WO 4 ) 4 :Nd 3+ is investigated for the first time. The emission is in the near-infrared region. The well known 4 F 3/2 → 4 I 9/2 transition leads to most intense line at 1069 nm. The excitation and emission spectra are interpreted using the energy level diagram of Nd 3+ . The excitation spectrum is made up of a large number of sharp lines attributable to various f–f transitions. A weak band at 360 nm in the ex-citation spectrum is assigned to the host. Notwithstanding large Y – Y distances, the luminescence is quenched at concentrations exceeding 2 mol %. The critical distance for energy transfer among Nd 3+ ions is found to be 32.85 Å.
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content type line 14
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783424601188