COMPOSITE NANOPARTICLE AND PROCESS FOR PRODUCING THE SAME

摘要

Composite nanoparticles can have their temperature for metal nuclei uniform sintering substantially lowered through organic substance desorption from the metal nuclei and thus can be used as a substitute for solder welding. There is provided composite nanoparticle (10) comprising a core portion of metal component (12) and, surrounding the metal component, organic substance (14) linked thereto through physical adsorption. This composite nanoparticle can be produced by causing an inorganic metal salt and an organic substance to coexist and heating the metal salt and organic substance to a given temperature and maintaining the temperature for a given period of time so that the inorganic metal salt is decomposed so as to form metal nanoparticles and so that while avoiding reaction of the metal nanoparticles with the organic substance resulting in formation of an organometallic compound, the organic substance is linked to the periphery of the metal nanoparticles through physical adsorption.