Abstract
Plasma display panels (PDP) are most promising for large flat panel displays at present. However, luminescence efficiency and lifetime of PDP phosphors should be improved. Alkaline earth silicates show remarkable properties as phosphor hosts with various crystal structures and high chemical stability. Availability of Ba 2MgSi 2O 7 has received attention as a host for vacuum ultraviolet (VUV) excitable phosphor. Blue-green phosphor Ba 2MgSi 2O 7:Eu 2+ with a high thermal quenching temperature [G. Blasse, W.L. Wanmaker, J.W. ter Vrugt, A. Bril, Philips. Res. Rep. 23 (1968) 189–200] exhibit high luminance (45% of commercial green VUV phosphor Zn 2SiO 4:Mn 2+) under VUV excitation without optimization of synthesis condition and emission color. Ba 2MgSi 2O 7 is promising candidate for the new VUV phosphor in PDP and mercury-free lamp application.
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