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Pathways for carbon dioxide reduction in plasmonic hot carrier photoelectrochemical structures

Atwater, Harry (2020) Pathways for carbon dioxide reduction in plasmonic hot carrier photoelectrochemical structures. In: 260th ACS National Meeting & Exposition, 23-27 August 2020, San Francisco, CA.

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Harvesting non-equil. carriers at semiconductor-metal interfaces offers an opportunity to modify the rates and pathways for photochem. reactions at the nanoscale. The carrier generation, transport and interface dynamics can be addressed with a combination of first-principles theory for carrier excitation and relaxation, observation of carrier dynamics via hot-carrier photocurrent spectroscopy, ultrafast transient absorption spectroscopy, and photoelectrochem. measurements that assess current transport, product yield and selectivity. We use as examples reactions at the Au/p-GaN and Cu/NiO interfaces, both of which feature photoexcited hot hole injection at the metal-p-type wide bandgap semiconductor interface. We compare results of theory to excited carrier transport, transient absorption and photocatalysis measurements in these systems.

Item Type:Conference or Workshop Item (Paper)
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URLURL TypeDescription Paper
Atwater, Harry0000-0001-9435-0201
Additional Information:© 2020 American Chemical Society.
Record Number:CaltechAUTHORS:20201221-083930564
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107229
Deposited By: Tony Diaz
Deposited On:21 Dec 2020 16:52
Last Modified:21 Dec 2020 16:52

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