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Synthesis and luminescent properties of Gd3Ga2Al3O12 phosphors doped with Eu3+ or Ce3+

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Abstract

Eu3+-or Ce3+-doped gadolinium gallium aluminum garnet (GGAG), Gd3Ga2Al3O12, phosphors are fabricated using solid-state reactions with Gd2O3, Ga2O3, Al2O3, CeO2 and Eu2O3 powders. The Eu3+-or Ce3+-doped Gd3Ga2Al3O12 phosphors are sintered at 1300 °C or 1600 °C for 5 hours by using an electric furnace under normal atmosphere. X-ray diffraction and field-emission scanning electron microscopy studies are carried out in order to analyze the physical properties of these materials, and their luminescence properties are also measured by using UV and X-ray sources. The Eu3+-or Ce3+-doped Gd3Ga2Al3O12 phosphors show higher light yields in comparison to commercial phosphors such as Gd2O2S:Tb (gadox). This indicates that Gd3Ga2Al3O12:Eu3+ phosphors are promising materials for use in X-ray imaging and dose monitoring at proton beamlines.

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Authors and Affiliations

  1. Department of Physics, Kyungpook National University, Daegu, 41566, Korea

    M. J. Oh & H. J. Kim

  2. Department of Radiology, Daegu Health Colleage, Daegu, 41453, Korea

    M. J. Oh

Authors
  1. M. J. Oh
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  2. H. J. Kim
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Correspondence to H. J. Kim.

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Oh, M.J., Kim, H.J. Synthesis and luminescent properties of Gd3Ga2Al3O12 phosphors doped with Eu3+ or Ce3+ . Journal of the Korean Physical Society 69, 1110–1114 (2016). https://doi.org/10.3938/jkps.69.1110

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  • DOI: https://doi.org/10.3938/jkps.69.1110

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