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Electrocatalytic glycerol oxidation enabled by surface plasmon polariton-induced hot carriers in Kretschmann configuration
- Electrocatalytic glycerol oxidation enabled by surface plasmon polariton-induced hot carriers in Kretschmann configuration
- Chung, Kyungwha; Zhu, Xingzhong; Zhuo, Xiaolu; Jang, Yu Jin; Choi, Chi Hun; Lee, June Sang; Kim, Seung-hoon; Kim, Minju; Kim, Kiheung; Kim, Donghyun; Ham, Hyung Chul; Baba, Akira; Wang, Jianfang; Kim, Dong Ha
- Ewha Authors
- SCOPUS Author ID
- Issue Date
- Journal Title
- NANOSCALE vol. 11, no. 48, pp. 23234 - 23240
- ROYAL SOC CHEMISTRY
- SCI; SCIE; SCOPUS
- Document Type
- 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 x 10(-3)%, which is similar to 2.5 times enhanced as compared to the efficiency based on the neat Au film.
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