[7p-PA7-1~25] 9.2 Nanowires and Nanoparticles

[7p-PA7-17] Control of localized surface plasmon resonance energy in monolayer structures of metal nanoparticles

〇Tomoki Narazaki¹, Hiroki Yokota¹, DaeGwi Kim¹ (1.Osaka City Univ.)

Keywords:monolayer structures of metal nanoparticles, localized surface piasmon, plasmon coupling

Monolayer structures of Au and Ag nanoparticles (NPs) were fabricated by a dipping method to realize the control of localized surface plasmon resonance energy. The mean inter-particle distance in the monolayer was controlled by changing the concentration of NPs in the colloidal solution used for dipping method. The extinction-peak energy of the monolayer structure was red-shifted with decreasing inter-particle distance, reflecting plasmon coupling between NPs.