Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Cathodoluminescence Enhancement of CaTiO3:Pr3+ by Ga Addition

  • Kang, Seung-Youl (Basic Research Laboratory, Electronics and Telecommunication Research Institute) ;
  • Byun, Jung-Woo (Basic Research Laboratory, Electronics and Telecommunication Research Institute) ;
  • Kim, Jin-Young (Basic Research Laboratory, Electronics and Telecommunication Research Institute) ;
  • Suh, Kyung-Soo (Basic Research Laboratory, Electronics and Telecommunication Research Institute) ;
  • Kang, Seong-Gu (Department of Chemical Engineering, Hoseo University)
  • Published : 2003.05.20
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Abstract

The phosphor $CaTiO_3:Pr^{3+}$ attracts much attention as a low-voltage red phosphor because of its good chromaticity and intrinsic conductivity. The addition of Ga into this CaTiO₃:Pr led the luminance intensity to greatly enhance without the change of the wavelength for the electronic transition and the peak shape of it. The increase of the recombination rate of electron-hole pairs through the Ga ion doping, which was expected to play a role of a hole-trap center, is proposed to be one of the reasons for the enhancement of the cathodoluminescence intensity.

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References

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