American Chemical Society
jz4c00442_si_001.pdf (1.72 MB)

Photoinduced Stitching of Self-Assembled Triangular Silver Nanoprisms at the Air–Water Interface

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journal contribution
posted on 2024-04-03, 12:44 authored by Sanje Mahasivam, Vipul Bansal, Murali Sastry
This study investigates the influence of optical excitation on the self-assembly of triangular nanoprisms of silver into a continuous monolayer at the air–water interface. Langmuir monolayers of octadecylamine (ODA) have been used to electrostatically assemble citrate-capped silver triangular nanoprisms (AgTNPs) in the presence and absence of light. Under optical excitation, the nanoprisms were observed to assemble into a well-ordered monolayer through plasmon-mediated stitching, whereas the particles were merely in close contact during assembly in the dark. These findings suggest new avenues for tailoring particle properties through light-mediated assembly in two dimensions.