Applied Science and Convergence Technology

The Korean Vacuum Society (한국진공학회)
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White Light Generation from Single Gallium Oxide Nanoparticles co-doped with Rare-Earth Metals

  • Patil, Prashant (Center for Materials Architecturing, Korea Institute of Science and Technology (KIST)) ;
  • Park, Jinsung (Center for Materials Architecturing, Korea Institute of Science and Technology (KIST)) ;
  • Lee, Seung Yong (Center for Materials Architecturing, Korea Institute of Science and Technology (KIST)) ;
  • Park, Jong-Ku (Center for Materials Architecturing, Korea Institute of Science and Technology (KIST)) ;
  • Cho, So-Hye (Center for Materials Architecturing, Korea Institute of Science and Technology (KIST))
  • Received : 2014.08.25
  • Accepted : 2014.09.24
  • Published : 2014.09.30
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Abstract

The synthesis of pure and rare-earth doped gallium oxide (${\beta}-Ga_2O_3$) nanoparticles is reported. The synthesized nanoparticles are characterized with XRD, TEM, and PL analyses. Strong blue emission is observed from un-doped gallium oxide nanoparticles, while nanoparticles doped with $Eu^{3+}$ and $Tb^{3+}$ give strong red and green emissions, respectively. When doped with $Eu^{3+}$ and $Tb^{3+}$ together, gallium oxide nanoparticles emit white light. The CIE coordinate of the emitted light was found to be (0.33, 0.33), which is well within the white light region.

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