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Structural and luminescent properties of UV emitting ZnAl2O4 powder was studied. It was found that the firing temperature above 1000οC was necessary to prepare the ZnAl2O4 single phase. The CL intensity became stronger according to increase of firing temperature, because of improvement of crystallinity of the powders. The peak position of CL spectra were shifted from 235 nm to 250 nm by control of...
Cathodoluminescent properties of ZnO-based phosphor powders were investigated. Zn-Y-O and Zn-Al-O powders showed near UV emission peaked around 400 nm and 270 nm, respectively under electron beam excitation. The CL intensity were increased linearly, it indicates that the phosphors were prepared uniformly and homogeneously. There are many possibility for new phosphors which showed UV emission for new...
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