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Plasmonics

Harvest season for hot electrons

The excitation of plasmons in nanostructured metallic electrodes generates short-lived highly energetic carriers that can be injected into the conduction band of a semiconductor and used to drive artificial photosynthesis.

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Figure 1: Energy-band diagrams comparing the light-absorption mechanisms in a bulk semiconductor and a semiconductor interfaced with a metal.

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Correspondence to Mark L. Brongersma.

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Chalabi, H., Brongersma, M. Harvest season for hot electrons. Nature Nanotech 8, 229–230 (2013). https://doi.org/10.1038/nnano.2013.49

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