Effect of Excitation Transfer in Rare Gas Mixtures for Plasma Display Panels

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  • プラズマディスプレイ用混合希ガス中の励起移行効果
  • プラズマディスプレイヨウ コンゴウ キガス チュウ ノ レイキイコウ コウカ

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Abstract

The effect of Ar or Kr addition to Ne/Xe used for plasma display panels on the radiation properties and the ionization rate is investigated using a Boltzmann equation method combined with rate equations for electrons and excited species. When Ar is added to Ne/Xe for the Xe mixture ratio KXe(=NXe/ΣsNs, N: the molecule concentration, s: molecule species)=0.05, the production rate of Xe(1s) increases by excitation transfer from Ar to Xe and reaches to 5.8 times as high as that in Ne/Xe for E/p0>4.5Vcm-1Torr-1. In the case of Kr addition, the production rate becomes 7.7 times. The radiation efficiency of ultra violet light in Ne/Ar/Xe and Ne/Kr/Xe increases significantly compared with that in Ne/Xe for E/p0>4.9Vcm-1Torr-1. Addition of Kr is more effective for improvement of the efficiency than that of Ar, since the synergy effect of excitation transfer and production of Xe*2 is induced. On the other hand, the ionization rate decreases by addition of Ar or Kr, since Penning ionization decreases significantly with the Ne concentration.

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