Eu 2 +-activated strontium choloro-phosphate has been used for lamp phosphor traditionally with high efficiency. In this paper, the cathodoluminescent properties of Srs(P0 4 hCI:Eu 2 + have been investigated for application in field emission display. The influence of Bi+, Ca2+ impurities on the cathodoluminescent spectrum of Srs(P0 4 hCI:Eu 2 + has also been measured. When operate voltage varied from mid-to low-voltage, the relative brightness and saturation behavior of phosphor was observed at different current density.
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