Abstract
At present,the commercial tri-color phosphors for PDP application are(Y,Gd)BO3∶ Eu3+(red phosphor),Zn2SiO4∶Mn2+,BaAl12O19∶Mn2+ or(Gd,Y)BO3∶Tb3+(green phosphors) and BaMgAl10O17∶Eu2+(blue phosphor).However,there exists a common problem in the above tri-color phosphors,that is,their luminescence efficiency is low.Moreover,they also present the disadvantages as follows which restrict their luminescence properties: the color purity of(Y,Gd)BO3∶Eu3+ is poor;the decay lifetimes of Zn2SiO4∶Mn2+ and BaAl12O19∶Mn2+ are long;the luminescence intensity of(Gd,Y)BO3∶Tb3+ is insufficiency,while BaMgAl10O17∶Eu2+ presents poor stability when treated by heating or VUV irradiation.Aiming at these problems,this paper summarizes the recent research progresses on the VUV luminescence mechanism and the improvement of luminescence properties for the tri-color phosphors.Meanwhile,the research progress on the exploring of novel VUV phosphors is also involved.
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