Abstract

When plasmonic metal nanostructures are coupled with organic molecules, plasmon can transfer energy from the metal to the organic molecules, leading to exciton generation. In addition, plasmonic hot electrons can transfer from the metal to the adsorbate molecules, leading to chemical interface damping. Based on the above two transfer processes, photoluminescence, surface-enhanced Raman scattering and photocurrent of organic molecules can be enhanced by coupling of organic molecules with plasmonic metal nanostructure, which has implication in photodetection, sensing and solar energy conversion.

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