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Blue-emitting AlN:Eu2+ Powder Phosphor Prepared by Spark Plasma Sintering

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Blue-emitting AlN:Eu2+ powder phosphor was synthesized by spark plasma sintering (SPS) using AlN, Si3N4, and Eu2O3 as the starting materials, and its luminescence properties were investigated. A single-phase Eu- and Si-co-doped AlN powder was successfully fabricated by SPS in the range of 1650°–1800°C for 5 min. The AlN:Eu2+ obtained exhibited a strong blue emission at 480 nm under the excitation of exc=340 nm and an electron beam. The highest photoluminescence intensity was observed in the phosphor sintered at 1700°C, which was comparable to that of the phosphor prepared by gas pressure sintering at 1750°C for 4 h.

Document Type: Research Article


Affiliations: Department of Materials Science and Engineering and Research Institute of Advanced Materials, Seoul National University, Seoul 151-742, Korea

Publication date: February 1, 2010


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