CaAlSiN3 Sr2Si5N8 Sr CaAlSiN3 La3Si6N11 SILICON NITRIDE POWDER FOR SILICONITRIDE PHOSPHOR CaAlSiN3 PHOSPHOR USING SAME Sr2Si5N8 PHOSPHOR USING SAME Sr CaAlSiN3 PHOSPHOR USING SAME La3Si6N11 PHOSPHOR USING SAME AND METHODS FOR PRODUCING THE PHOSPHORS

摘要

A vacuum fluorescent display (VFD), field emission displays (FED), plasma display panel (PDP), cathode ray tube (CRT), light emitting diode (LED) that can be used or the like, the silicon nitride powder for silicon nitride phosphor, the more high-brightness and CaAlSiN using it _3-base phosphor, Sr ₂ Si ₅ N _8-base phosphor, (Sr, Ca) AlSiN _3-base phosphor, and La ₃ Si ₆ N _11-base phosphor, and provides a method of manufacturing the same. The present invention, containing silicon element and a nitrogen element, a crystalline silicon nitride powder to be used as a raw material for the production of silicon nitride phosphor is not the oxygen element to the constituent elements, the oxygen content, characterized in that 0.2 to 0.9% by weight It relates to silicon nitride powder for the nitride phosphor and the CaAlSiN ₃ based fluorescent material using it, Sr ₂ Si ₅ N _8-base phosphor, (Sr, Ca) AlSiN _3-base phosphor, and La ₃ Si ₆ N _11-base phosphor, and a method of manufacturing the same.