| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide Group III-V semiconductor nanoparticles having a high luminous efficiency in an aqueous solution, a method of producing the nanoparticles, a fluorescent material with a high luminous efficiency containing the Group III-V semiconductor nanoparticles retained in a glass matrix, a method of producing the fluorescent material, and a light-emitting device containing the fluorescent material. <P>SOLUTION: The nanoparticles have a core/shell structure consisting of a core comprising a Group III element and a Group V element at a molar ratio of the Group III element to the Group V element in the range of 1.25 to 3.0, and a shell comprising a Group II element and a Group VI element and having a thickness of 0.2 nm to 4 nm, a luminous efficiency of 10% or more and a diameter of 2.5 to 10 nm. The method of producing the nanoparticles comprises bringing a dispersion of III-V semiconductor nanoparticles in an organic solvent into contact with an aqueous solution of a Group II element-containing compound and a Group VI element-containing compound to thereby transfer the III-V semiconductor nanoparticles of the organic solvent dispersion to the aqueous solution, and irradiating the aqueous solution with light. The method of producing the glass matrix in which the nanoparticles are dispersed is provided. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
