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Issue 48, 2019
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Electrocatalytic glycerol oxidation enabled by surface plasmon polariton-induced hot carriers in Kretschmann configuration

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Abstract

Plasmonic hot carrier generation has attracted increasing attention due to its ability to convert light to electrical energy. The generation of plasmon-induced hot carriers can be achieved via Landau damping in the non-radiative decay process of the plasmonic excitation energy. Localized surface plasmons (LSPs) undergo both radiative and non-radiative decays, while surface plasmon polaritons (SPPs) dissipate only via the non-radiative decay. Thus, it is a challenging task to exploit the surface plasmon polaritons for the efficient generation of hot carriers and their applications. In this study, a model hot-carrier-mediated electrocatalytic conversion system was demonstrated using an Au thin film in Kretschmann configuration, which is the representative platform to excite SPPs. AgPt-decorated Au nanobipyramids (AuNBPs) were designed and introduced onto the Au film, creating hot-spots to revolutionize the thin film-based photon-to-carrier conversion efficiency. The glycerol electro-oxidation reaction enabled by such SPP-induced hot carriers was evaluated and exhibited a photon-to-hot carrier conversion efficiency of 2.4 × 10−3%, which is ∼2.5 times enhanced as compared to the efficiency based on the neat Au film.

Graphical abstract: Electrocatalytic glycerol oxidation enabled by surface plasmon polariton-induced hot carriers in Kretschmann configuration

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Article information


Submitted
11 Sep 2019
Accepted
13 Nov 2019
First published
14 Nov 2019

Nanoscale, 2019,11, 23234-23240
Article type
Paper

Electrocatalytic glycerol oxidation enabled by surface plasmon polariton-induced hot carriers in Kretschmann configuration

K. Chung, X. Zhu, X. Zhuo, Y. J. Jang, C. H. Choi, J. S. Lee, S. Kim, M. Kim, K. Kim, D. Kim, H. C. Ham, A. Baba, J. Wang and D. H. Kim, Nanoscale, 2019, 11, 23234
DOI: 10.1039/C9NR07846K

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