The Chemical Potential of Plasmonic Excitations

Sungju Yu, Prashant K. Jain

Research output: Contribution to journalArticlepeer-review


By the photoexcitation of localized surface plasmon resonances of metal nanoparticles, one can generate reaction equivalents for driving redox reactions. We show that, in such cases, there is a chemical potential contributed by the plasmonic excitation. This chemical potential is a function of the concentration of light, as we determine from the light-intensity-dependent activity in the plasmon-excitation-driven reduction of CO2 on Au nanoparticles. Our finding allows the treatment of plasmonic excitation as a reagent in chemical reactions; the chemical potential of this reagent is tunable by the light intensity.

Original languageEnglish (US)
Pages (from-to)2085-2088
Number of pages4
JournalAngewandte Chemie - International Edition
Issue number5
StatePublished - Jan 27 2020


  • CO reduction
  • catalysis
  • hot electrons
  • localized surface plasmon resonances
  • photocatalysis

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)


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