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Interfacial engineering of plasmonic nanoparticle metasurfaces.

ABSTRACT: SignificanceMolecules interacting with metallic nanostructures can show tunable exciton-plasmon coupling, ranging from weak to strong. One factor that influences the interactions is the spatial organization of the molecules relative to the localized plasmon-enhanced electromagnetic fields. In this work, we show that the arrangement of aromatic dye molecules can be tuned within plasmonic hotspots by interfacial engineering of nanoparticle surfaces. By controlling the local chemical and physical interactions, we could modulate lasing thresholds. Surface-functionalized plasmonic metasurfaces open prospects for programmable light-matter interactions at the nanoscale.

SUBMITTER: Deng S

PROVIDER: S-EPMC9295783 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature

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Interfacial engineering of plasmonic nanoparticle metasurfaces.

Deng Shikai S Park Jeong-Eun JE Kang Gyeongwon G Guan Jun J Li Ran R Schatz George C GC Odom Teri W TW

Proceedings of the National Academy of Sciences of the United States of America 20220523 22

SignificanceMolecules interacting with metallic nanostructures can show tunable exciton-plasmon coupling, ranging from weak to strong. One factor that influences the interactions is the spatial organization of the molecules relative to the localized plasmon-enhanced electromagnetic fields. In this work, we show that the arrangement of aromatic dye molecules can be tuned within plasmonic hotspots by interfacial engineering of nanoparticle surfaces. By controlling the local chemical and physical i ...[more]

PMID: 35605124

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