| 摘要 |
PROBLEM TO BE SOLVED: To provide a phosphor emitting red light on receiving ultraviolet excitation, suitable for uses such as a fluorescent lamp, an LED display and others, and to provide an inexpensive method for producing the same. SOLUTION: The phosphor is obtained by immersing zeolite, especially faujasite-type zeolite, in an aqueous solution of a trivalent europium soluble salt to ion-exchange and firing the ion-exchanged zeolite at 700-1,100°C in an oxidizing atmosphere. COPYRIGHT: (C)2005,JPO&NCIPI
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