プラズマディスプレイ用混合希ガス中の励起移行効果

抄録

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 K_Xe(=N_Xe/Σ_sN_s, 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.