SILICON NITRIDE POWDER FOR SILICONITRIDE PHOSPHOR, CAALSIN3 PHOSPHOR USING SAME, SR2SI5N8 PHOSPHOR USING SAME, (SR,CA) ALSIN3 PHOSPHOR USING SAME, LA3SI6N11 PHOSPHOR USING SAME, AND METHODS FOR PRODUCING THE PHOSPHORS

摘要

PROVIDED ARE A CRYSTALLINE SILICON NITRIDE POWDER FOR A SILICONITRIDE PHOSPHORS, WHICH IS USED AS A STARTING MATERIAL FOR PRODUCING A SILICONITRIDE PHOSPHOR CONTAINING A SILICON ELEMENT AND A NITROGEN ELEMENT BUT NO OXYGEN ELEMENT AS A CONSTITUTENT ELEMENT, AN OXYGEN CONTENT OF THE SILICON NITRIDE PHOSPHOR BEING 0.2—0.8 WT%; A CaAlSiN₃ PHOSPHOR, AN Sr₂Si₅N₈ PHOSPHOR, AN (Sr, Ca)AlSiN₃ PHOSPHOR AND AN La₃Si₆N₁₁ PHOSPHOR, EACH USING THE SILICON NITRIDE POWDER; AND A METHOD FOR PRODUCING THE PHOSPHORS. FIG. 1