Important Considerations in Plasmon-Enhanced Electrochemical Conversion at Voltage-Biased Electrodes

Elizabeth R. Corson; Erin B. Creel; Robert Kostecki; Bryan D. McCloskey; Jeffrey J. Urban

iScience (Mar 2020)

Important Considerations in Plasmon-Enhanced Electrochemical Conversion at Voltage-Biased Electrodes

Elizabeth R. Corson,
Erin B. Creel,
Robert Kostecki,
Bryan D. McCloskey,
Jeffrey J. Urban

Affiliations

Elizabeth R. Corson: Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA; Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA 94720, USA
Erin B. Creel: Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA; The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA; Department of Chemistry, University of California, Berkeley, CA 94720, USA
Robert Kostecki: Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA; Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
Bryan D. McCloskey: Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA; Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA 94720, USA; Energy Storage and Distributed Resources Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
Jeffrey J. Urban: Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA; The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA; Corresponding author

Journal volume & issue: Vol. 23, no. 3

Abstract

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In this perspective we compare plasmon-enhanced electrochemical conversion (PEEC) with photoelectrochemistry (PEC). PEEC is the oxidation or reduction of a reactant at the illuminated surface of a plasmonic metal (or other conductive material) while a potential bias is applied. PEC uses solar light to generate photoexcited electron-hole pairs to drive an electrochemical reaction at a biased or unbiased semiconductor photoelectrode. The mechanism of photoexcitation of charge carriers is different between PEEC and PEC. Here we explore how this difference affects the response of PEEC and PEC systems to changes in light, temperature, and surface morphology of the photoelectrode. : Catalysis; Theoretical Photochemistry; Engineering Subject Areas: Catalysis, Theoretical Photochemistry, Engineering

Published in iScience

ISSN: 2589-0042 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Science
Website: http://www.cell.com/iscience/home

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