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Synthesis and Anaiysis of Photohnninescence Properties of <TEX>$^5D_1$</TEX>→<TEX>$^7F_1$</TEX> Transition in <TEX>$LaGaO_3$</TEX>:<TEX>$Eu^{3+}$</TEX> Red Phosphor
Synthesis and Anaiysis of Photohnninescence Properties of $^5D_1$$^7F_1$ Transition in $LaGaO_3$:$Eu^{3+}$ Red Phosphor
Journal of the Korean Chemical Society. 2000. Oct, 44(5): 453-459
  • Published : October 00, 2000
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Kim, Kyoung Hwa
Choi, Yoon Young
Sohn, Kee Sun
Kim, Chang Hae
Park, Hee Dong
Choi, Se Young

Abstract
FED has deserved an intensive attentioD as a new flat panel display. The present investigationaims at undemtanding the photoluminescence and cathodoluminescent properties of hGaO$_3$: $Eu^{3+}$ phosphor bytaking into account the possibility that this phosphor could be applied for FED. In onler to investigate on.sucha detailed behavior; 8everM experimental skil18 Je conducted to the LaGaO$_3$:$Eu^{3+}$ phosphoL The excimtion srectrum artd emission spectmn were rnezsured in the UV range and then decay curve of $^5D_0$+$^7F_j$transitions\vas examined. The decay behavior of $^5D_0$ emission was anMyzed by a newly Iuoposed cross-relaxation mech-ani8In in asswiation with inteFwnter di1ffision (or migration). The cross-mlaxation from $^5D_0$ to CTB (Cha'geTransfer Band) wuld be a quite retsonable by considering the excitation spectrum. It could be also found thatthe quenching type was changed from ditfrsion controlled process to the direct quenching process -s inJeasing $Eu^{3+}$ oncntration.