METAL FINE PARTICLE, METHOD FOR PRODUCING METAL FINE PARTICLE, COMPOSITION CONTAINING SAME, AND APPLICATION THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a method where metal nanorods can be easily mass-produced, and further, the control of particle diameters is facilitated, and to provide metal fine particles obtained by the production method. SOLUTION: In the method for producing rod-shaped metal fine particles by chemically reducing metal ions in an aqueous solution, using an aqueous solution containing amines having reducing power and an ammonium salt substantially having no reducing power, the weak reducing power of the amines is utilized in the presence of the surface activate action of the ammonium salt, thus a reaction field where metal nanorods are mildly produced is formed, so as to easily obtain the objective metal nanorods having optical absorption properties. COPYRIGHT: (C)2006,JPO&NCIPI