Abstract
A series of () phosphors were synthesized by a traditional solid-state reaction route. Their photoluminescence under vacuum ultraviolet (VUV, energy , wavelength ) and cathodoluminescence under low-voltage electron beam excitation were evaluated. The luminescence decays were also measured. The intense green emission was observed with a peak at about 510 nm upon excitation. The luminescence of optimum phosphor (ZAM) was compared with that of commercial green phosphor (ZSM). The maximum emission intensity of ZAM is larger than that of ZSM under and low-voltage electron beam excitation. The values of chromaticity coordinates reveal the phosphors can evidently enlarge the tricolor gamut. The results show that the phosphors may be considered as candidates for Hg-free lamps, plasma flat backlights, and field emission backlights for liquid crystal displays.
©2012 Optical Society of America
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