• Title/Summary/Keyword: phosphor$SrTiO_3:Pr^{3+}$

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Luminescence Enhancement by Ba in SrTiO3:Pr, Al Red Phosphor for Field Emission Displays

  • Won, Chang-Whan;Lee, Jong-Eun;Won, Hyung-Il;Kim, Kwang-Bok;Song, Yoon-Ho;Kang, Seung-Youl;Koo, Kyoung-Wan
    • Journal of the Korean Ceramic Society
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    • v.43 no.11 s.294
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    • pp.743-745
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    • 2006
  • The luminescence properties of $Sr_{1-x}Ba_xTiO_3:Pr$, Al red phosphor for Field Emission Displays (FEDs) have been investigated in powders prepared though solid-state reactions. $Sr_{1-x}Ba_xTiO_3:Pr$, Al red phosphors indicate a higher luminescent intensity, and have been found to have potential for field emission displays. The addition of Ba increased the luminescence intensity at 617 nm by up to 30%. Ba ions are effective in producing the energy transfers from host-to-activator in 4f-5d transitions.

Preparation and Low-Voltage Luminescent Properties of $SrTiO_3$:Al, Pr Red Phosphor (저전압용 $SrTiO_3$ : Al, Pr 적색 형광체 합성 및 발광특성)

  • Park, Jeong-Gyu;Ryu, Ho-Jin;Park, Hui-Dong;Choi, Seung-Cheol
    • Korean Journal of Materials Research
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    • v.8 no.7
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    • pp.601-606
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    • 1998
  • The $SrTi0_3$:Al, Pr red phosphors were prepared by solid state reaction method. Phosphor preparation parameters such as sintering temperature and time were optimized for the photoluminescence(PU intensity and the cathodoluminescence(CL) intensity. Powder samples showed the characteristic X-ray diffraction patterns of the perovskite structure and the average particle size of 3~5/$\mu\textrm{m}$ for particle size distribution(PSD) analysis. Also, scanning electron microscopy for the powder samples showed that the particles are reasonably crystallized with spherical shape. Especially, higher low voltage CL properties of $SrTi0_3$:Al, Pr phosphors than commercial $Y_2O_3$:Eu phosphors are expected to be applied for a low voltage field emission display(FED).

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