Single-Molecule Chemistry with Surface- and Tip-Enhanced Raman Spectroscopy

Alyssa B. Zrimsek, Naihao Chiang, Michael Mattei, Stephanie Zaleski, Michael O. McAnally, Craig T. Chapman, Anne Isabelle Henry, George C. Schatz, Richard P. Van Duyne*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

243 Scopus citations

Abstract

Single-molecule (SM) surface-enhanced Raman spectroscopy (SERS) and tip-enhanced Raman spectroscopy (TERS) have emerged as analytical techniques for characterizing molecular systems in nanoscale environments. SERS and TERS use plasmonically enhanced Raman scattering to characterize the chemical information on single molecules. Additionally, TERS can image single molecules with subnanometer spatial resolution. In this review, we cover the development and history of SERS and TERS, including the concept of SERS hot spots and the plasmonic nanostructures necessary for SM detection, the past and current methodologies for verifying SMSERS, and investigations into understanding the signal heterogeneities observed with SMSERS. Moving on to TERS, we cover tip fabrication and the physical origins of the subnanometer spatial resolution. Then, we highlight recent advances of SMSERS and TERS in fields such as electrochemistry, catalysis, and SM electronics, which all benefit from the vibrational characterization of single molecules. SMSERS and TERS provide new insights on molecular behavior that would otherwise be obscured in an ensemble-averaged measurement.

Original languageEnglish (US)
Pages (from-to)7583-7613
Number of pages31
JournalChemical Reviews
Volume117
Issue number11
DOIs
StatePublished - Jun 14 2017

ASJC Scopus subject areas

  • Chemistry(all)

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