Laser Printing of Translucent Plasmonic Multicolor Images Based on Gold Nanoparticles

• Main Authors: Qianru CHEN, Yoshinori KUROIWA, Tetsu TATSUMA
• Format: Article
• Language: English
• Published: The Electrochemical Society of Japan 2021-05-01
• Series: Electrochemistry
• Subjects: localized surface plasmon resonance; gold nanoparticle ensemble; near infrared laser printing; laser dewetting
• Online Access: https://www.jstage.jst.go.jp/article/electrochemistry/89/3/89_21-00029/_pdf/-char/en

Gold nanoparticle ensembles were prepared by laser dewetting from a gold thin film on a glass substrate. The gold film was scanned by infrared laser (1064 nm) using a fiber laser scanner. The morphology, color, and shading of the nanoparticles were controlled by changing two parameters, the laser intensity and the laser scan rate. Laser printing of a multicolor image was successfully demonstrated. This simple method would be applied to patterning of electrodes and semiconductor films with gold nanoparticle ensembles with different optical properties.