Field-induced infrared absorption in metal surface spectroscopy: The electrochemical Stark effect

Carol Korzeniewski, Randall B. Shirts, Stanley Pons

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

Abstract

The intense electric fields present near the electrode-solution interface are sufficient to induce infrared activity of vibrational modes that are normally infrared inactive. The pure Stark effect, intensity enhancement by external electric fields, and charge-transfer effects are three mechanisms by which vibrational transitions in molecules at or near metal surfaces may be observed in addition to conventional absorption. Calculation of the expected absorption coefficients for adsorbed species gives values which are similar to those observed in surface electrochemical reflectance infrared techniques.

Original languageEnglish
Pages (from-to)2297-2298
Number of pages2
JournalJournal of physical chemistry
Volume89
Issue number11
DOIs
StatePublished - 1985

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