Cathodoluminescence Enhancement of CaTiO3:Pr3+ by Ga Addition

[摘要] The phosphor CaTiO3:Pr3+ 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.

[学科分类] 化学（综合）

[关键词] Field emission displays (FED);Cathodoluminescence intensity;Phosphors