To provide electrically conductive metal nanoparticles not only capable of directly printing fine pattern wiring on a base material by a single process and simplifying the process, so as to epoch-makingly reduce a unit production cost, but also capable of producing a high integrated and high efficiency printed circuit through the refining of a wiring width, and particularly, remarkably reducing heat treatment temperature for wiring formation compared with that in the conventional metal particles, and to provide a production method utilizing the same.
Disclosed is a method for producing electrically conductive metal nanoparticles comprising: a stage where a metal hydrocarbon compound is dissolved into an organic solvent, so as to produce a solution, and thereafter, the solution is charged with an aromatic amine compound, so as to cause a reaction; and a stage where, after the reaction, the resultant product is cleaned with a mixed solvent of alcohol and acetone, and is dried. Also disclosed are electrically conductive metal nanoparticles produced by the method, and an ink composition.
YAMASHITA OSAMU
RIN KYOSHO
RYU EICHUL
LEE SANG-JIN
Shiina Akira