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Microstructural and Radioluminescence Characteristics of Nd3+ Doped Columbite-Type SrNb2O6 Phosphor

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Abstract

Undoped and different concentration Nd3+ doped SrNb2O6 powders with columbite structure were synthesized by molten salt process using a mixture of strontium nitrate and niobium (V) oxide and NaCl-KCl salt mixture as a flux under relatively low calcining temperature. X-ray diffraction analysis results indicated that SrNb2O6 phases found to be orthorhombic columbite single phase for undoped, 0.5 and 3 mol% Nd3+ doping concentrations. Phase composition of the powders was examined by SEM-EDS analyses. Radioluminescence properties of Nd3+ doped samples from UV to near-IR spectral region were studied. The emissions increased with the doping concentration of up to 3 mol%, and then decreased due to concentration quenching effect. There is a sharp emission peak around 880 nm associated with 4F5/2 → 4I9/2 transition in the Nd3+ ion between 300 and 1100 nm. The broad emission band intensity was observed from 400 to 650 nm where the peak intensities increased by increasing Nd3+ doping concentration. All the measurements were taken under the room temperature.

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Authors and Affiliations

  1. Department of Chemistry, Marmara University, Kadıkoy, 34777, Istanbul, Turkey

    Mete Kaan Ekmekçi

  2. Department of Materials Science and Engineering, Marmara University, Kadıkoy, 34777, Istanbul, Turkey

    Mustafa İlhan

  3. Department of Physics, Celal Bayar University, 45140, Manisa, Turkey

    Arzu Ege & Mehmet Ayvacıklı

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  1. Mete Kaan Ekmekçi
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  2. Mustafa İlhan
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  3. Arzu Ege
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  4. Mehmet Ayvacıklı
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Correspondence to Mete Kaan Ekmekçi.

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Ekmekçi, M.K., İlhan, M., Ege, A. et al. Microstructural and Radioluminescence Characteristics of Nd3+ Doped Columbite-Type SrNb2O6 Phosphor. J Fluoresc 27, 973–979 (2017). https://doi.org/10.1007/s10895-017-2032-3

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  • DOI: https://doi.org/10.1007/s10895-017-2032-3

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