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Cathodoluminescence properties of Tb3+-doped Na3YSi2O7 phosphors

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Abstract

Tb3+-doped Na3YSi2O7 phosphors were prepared by the sol–gel method and then characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy, and cathodoluminescence spectroscopy. The XRD results reveal that the Tb3+ ions have been introduced as dopants into the Na3YSi2O7 host lattice. Under low-voltage electron beam excitation, the phosphors exhibit the characteristic emissions of Tb3+ (5 D 3,4→7 F J , J=3–6 transitions). The luminescence color of the phosphors can be tuned from greenish-blue to bluish-green and to green by controlling the Tb3+ concentration within the 0.0005–0.15 (x value). The optimum Tb3+ doping concentration is 10 mol%, and the “dead voltage” is approximately 1.35 kV. All results indicate that the sample is a phosphor candidate for field-emission displays.

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Acknowledgements

This work was supported by the “111 Talents Project” Foundation of Inner Mongolia and the Innovation Fund of Inner Mongolia University of Science and Technology (2010NC026).

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Authors and Affiliations

  1. School of Chemistry and Chemical Engineering, Innermongolia University of Science and Technology, Baotou, 014010, China

    Wenyu Zhao, Bin Fan & Songbo Li

  2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China

    Wenyu Zhao, Shengli An & Songbo Li

  3. School of Material and Metallurgical Engineering, Innermongolia University of Science and Technology, Baotou, 014010, China

    Shengli An

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  1. Wenyu Zhao
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Correspondence to Shengli An.

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Zhao, W., An, S., Fan, B. et al. Cathodoluminescence properties of Tb3+-doped Na3YSi2O7 phosphors. Appl. Phys. A 111, 601–604 (2013). https://doi.org/10.1007/s00339-012-7271-1

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