Production method of nanocrystalline phosphor and coated nanocrystalline phosphor, and coated nanocrystalline phosphor

摘要

PROBLEM TO BE SOLVED: To provide a nanocrystal particle phosphor which contains a group 13 nitride mixed-crystal semiconductor, is capable of controlling the mixed-crystal ratio in the group 13 nitride mixed-crystal semiconductor, has a high luminous efficiency and is excellent in reliability, a coated nanocrystal particle phosphor with an improved dispersibility, and a manufacturing method thereof.;SOLUTION: The nanocrystal particle phosphor has a core/shell structure comprising a core made of a group 13 nitride semiconductor and a shell membrane which is made of the group 13 nitride mixed-crystal semiconductor and covers the core. In the coated nanocrystal particle phosphor, a modified organic molecule is bound and/or applied to the nanocrystal particle phosphor. In the manufacturing method of the coated nanocrystal particle phosphor, a mixed solution containing the core made of the group 13 nitride semiconductor, a nitride-containing compound, a compound containing a group 13 element and the modified organic molecule is heated.;COPYRIGHT: (C)2008,JPO&INPIT