METHOD FOR PRODUCING METAL ULTRAFINE PARTICLE AND COMPOSITION CONTAINING THE METAL ULTRAFINE PARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a method for producing metal ultrafine particles capable of exhibiting high electrical conductivity without being heated even when the pattern of a thick film is formed, and to provide a composition containing metal ultrafine particles.;SOLUTION: The method for producing metal ultrafine particles includes: a process for obtaining a dispersion in which metal ultrafine particles having an average particle diameter of 0.1 μm or less are dispersed into an aqueous medium; a process for mixing the dispersion with a water soluble halide in such a manner that the molar ratio of the water soluble halide to the metal ultrafine particles is within the range of 0.15 to 8.0%; and a process for refining the metal ultrafine particles, at least in this order.;COPYRIGHT: (C)2013,JPO&INPIT