| 摘要 |
PROBLEM TO BE SOLVED: To provide a phosphor for electron beam excitation which hardly undergoes deterioration in luminous efficiency and can maintain high luminance even when the excitation density of electron beams for phosphor excitation is increased. SOLUTION: Ca<SB>3</SB>N<SB>2</SB>(2N), AlN(3N), Si<SB>3</SB>N<SB>4</SB>(3N) and Eu<SB>2</SB>O<SB>3</SB>(3N) are prepared as raw materials, weighed so that the molar ratio of each element satisfies the relationship (Ca+Eu):Al:Si=1:1:1 and mixed. The resultant mixture is kept and baked in an inert atmosphere at 1,500°C for 3 hr and subsequently pulverized to give the phosphor of a compositional formula: Ca<SB>0.985</SB>SiAlN<SB>3</SB>:Eu<SB>0.015</SB>. COPYRIGHT: (C)2006,JPO&NCIPI
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