Mitsubishi Materials Corporation

Dai Nippon Toryo Co., Ltd.

Other

Hideya Kawasaki

Yoshiaki Takata

Hiroki Hirata

Masanori Nagai

Masato Murouchi

Daigou Mizoguchi

Jun-etsu Satoh

Masaoki Ishihara

Yasuro Niidome

Koji Nishioka

Sunao Yamada

Jun-Etsu Satoh

Yasuro Nidome

The present invention provides metal fine particles which have selective wavelength absorption characteristics in a wavelength region from visible light to near infrared light, and have sharp absorption characteristics, and influences little the surrounding wavelength, and therefore, they yield tones having high chroma. The present invention provides metal fine particles wherein an aspect ratio is in a range from 1.1 to 8.0, a maximum absorption wavelength in plasmon absorption is in a range from 400 nm to 1,200 nm, and an absorption coefficient at a peak position of the maximum absorption wavelength is in a range from 6,000 to 20,000 L/mol&#xb7;cm (measurement concentration: 1.6&#xd7;10mol/L, and solvent: water).

Metal fine particles, composition containing the same, and production method for producing metal fine particles

A method for manufacturing metal nanorods includes: a step of adding a reducing agent to a metallic salt solution; a step of radiating light into the metallic salt solution containing the reducing agent; and a step of leaving the light-radiated metallic salt solution containing the reducing agent stationary in a dark place so as to grow metal nanorods. Metal nanorods can be also grown by forming a mixed solution by fractionating the above light-radiated metallic salt solution and mixing the fractionated metallic salt solution into a non-radiated metallic salt solution containing the reducing agent, or mixing a non-radiated metallic salt solution and the reducing agent into the above light-radiated metallic salt solution; and leaving the mixed solution stationary in a dark place so as to grow metal nanorods.

Method for manufacturing metal nanorods and use thereof

Method for manufacturing metal nanorods and uses thereof

Growing community of inventors

Fukuoka, Japan

Hideya Kawasaki