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http://dx.doi.org/10.3740/MRSK.2002.12.9.735

Degradation of PDP Phosphors Under VUV Excitation  

Lee, R.Y. (Dept.of New Materials Engr., Dankook University)
Lee, S.H. (Dept. of Chemistry, Dankook University)
KIm, Y.H. (Dept. of Chemistry, Dankook University)
Publication Information
Korean Journal of Materials Research / v.12, no.9, 2002 , pp. 735-739 More about this Journal
Abstract
$(Y,Gd)BO_3$: Eu, $Zn_2$$SiO_4$ : Mn and $BaMgAl_{10}$ $O_{17}$ : Eu phosphors used in PDP were continuously irradiated by vacuum ultra violet generated from the penning gas (96%Ar+4%Xe) discharge and then the change of emitting intensity with time was investigated. The brightness of these phosphors decreased exponentially with VUV excitation time. The experimental data showed that the degradation rate increased in the order of $Zn_2$$SiO_4$ : Mn>(Y,Gd)$BO_3$: Eu>$BaMgAl_{10}$ $O_{17}$ : Eu phosphor. This different degradation property of phosphors was interpreted in terms of brightness saturation and stability against VUV irradiation. It was found that the degradation property of $(Y,Gd)BO_3$ : Eu red phosphor synthesized by ultrasonic thermal spray was superior to commercial phosphor.
Keywords
PDP phosphor; degradation; brightness saturation; luminescent killer;
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