FLUORESCENT MATERIAL AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a fluorescent material having high quantum yield and a method for producing the material. SOLUTION: The fluorescent material is a nanoparticle produced by mixing a solution containing dispersed nanofluorescent particles composed of the first compound composed of each one kind of the elements of the group I-III-VI and having a chalcopyrite structure with (b) a solution containing a dissolved metal salt, and heating the mixture to substitute the element constituting the nanofluorescent particle with the metal element of the metal salt. The quantum yield of the fluorescent material is 10-40% at room temperature. The fluorescent particle generates fluorescent light of 550-800 nm wavelength. COPYRIGHT: (C)2009,JPO&INPIT