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Blue-emitting LaAlO3:Tm3+, In3+ phosphors for field emission displays |
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| Authors: | Wenyu Zhao Shengli An Bin Fan Songbo Li |
| Affiliation: | 1. School of Chemistry and Chemical Engineering, Innermongolia University of Science and Technology, Baotou, 014010, China 2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijng, Beijing, 100083, China 3. School of Material and Metallurgy, Innermongolia University of Science and Technology, Baotou, 014010, China |
| Abstract: | Tm3+ and In3+ co-doped LaAlO3 phosphors were prepared by a Pechini sol–gel method and characterized by X-ray diffraction, scanning electron microscope, and cathodoluminescence spectrum. The phosphor is composed of slightly aggregated particles with approximately spherical shape and a narrow size range of 1.0–1.5 μm. Under voltage electron beam excitation, the phosphor shows the characteristic emissions of Tm3+. All the color purity, radiant efficiency, luminous efficiency, and stability of the optimum LaAlO3:0.01Tm3+, 0.04In3+ phosphor are superior to these of commercial ZnS:Ag,Cl phosphor. These tests suggest that it could be a potential candidate as a blue phosphor for field emission displays. |
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