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A novel Li2Al2B2O7:Dy3+ white light emitting phosphor synthesized by stearic sol–gel method

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Abstract

Li2(1−x)Al2B2O7: x Dy3+ (x = 0.01, 0.03, 0.05, 0.07 and 0.09 mol) phosphors were prepared by steric sol–gel method. The crystalline nature of the synthesized material was confirmed by using powder X-ray diffraction. The surface morphology and elemental composition analysis has been carried out for Dy3+ doped Li2Al2B2O7 phosphor by using transmission electron microscopy, field emission scanning electron microscopy, and energy dispersive X-ray spectroscopy techniques. PL measurements indicated that the phosphor exhibited two strong emission transitions such as 4F9/2 → 6H15/2 (blue) and 4F9/2 → 6H13/2 (yellow) observed in visible region. The concentration quenching is observed at 5 mol% of Dy3+ ions doped Li2Al2B2O7 phosphor. The CIE chromaticity coordinates were evaluated for two sharp emissions observed in blue (4F9/2 → 6H15/2) and yellow (4F9/2 → 6H13/2) regions to understand the suitability of these materials for white light generation.

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Acknowledgments

One of the authors (Y. P. Manwar) thank to the Chairman of FIST-DST project, SGB Amravati University, Amravati (MS) for providing powder XRD facility for this work.

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Authors and Affiliations

  1. Department of Physics, RLT Science College, Akola, M.S., 444001, India

    Y. P. Manwar

  2. Department of Physics, SGB Amravati University, Amravati, M.S., 444602, India

    R. S. Palaspagar & S. K. Omanwar

  3. Department of Physics, G.S. College Khamgaon, Buldhana, M.S., 444303, India

    R. P. Sonekar

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  1. Y. P. Manwar
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  2. R. S. Palaspagar
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  3. R. P. Sonekar
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  4. S. K. Omanwar
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Correspondence to Y. P. Manwar.

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Manwar, Y.P., Palaspagar, R.S., Sonekar, R.P. et al. A novel Li2Al2B2O7:Dy3+ white light emitting phosphor synthesized by stearic sol–gel method. J Mater Sci: Mater Electron 28, 994–998 (2017). https://doi.org/10.1007/s10854-016-5619-6

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  • DOI: https://doi.org/10.1007/s10854-016-5619-6

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