ArticleProceedings of the National Academy of Sciences of the United States of America2023
Quantifying the ultrafast and steady-state molecular reduction potential of a plasmonic photocatalyst.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Continuous flow photosynthesis of methanol from methane by plasmonic charge accumulation.Nature communications · 2025Article
- Impact of Surface Enhanced Raman Spectroscopy in Catalysis.ACS nano · 2024Review
- The role of the plasmon in interfacial charge transfer.Science advances · 2024Article
- Article
- Quantifying the ultrafast and steady-state molecular reduction potential of a plasmonic photocatalyst.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
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2 authors.
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Abstract
Plasmonic materials are promising photocatalysts as they are well suited to convert light into hot carriers and heat. Hot electron transfer is suggested as the driving force in many plasmon-driven reactions. However, to date, there are no direct molecular measures of the rate and yield of plasmon-to-molecule electron transfer or energy of these electrons on the timescale of plasmon decay. Here, we use ultrafast and spectroelectrochemical surface-enhanced Raman spectroscopy to quantify electron transfer from a plasmonic substrate to adsorbed methyl viologen molecules. We observe a reduction yield of 2.4 to 3.5% on the picosecond timescale, with plasmon-induced potentials ranging from [Formula: see text]3.1 to [Formula: see text]4.5 mV. Excitingly, some of these reduced species are stabilized and persist for tens of minutes. This work provides concrete metrics toward optimizing material-molecule interactions for efficient plasmon-driven photocatalysis.
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