期刊
FARADAY DISCUSSIONS
卷 205, 期 -, 页码 9-30出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7fd00181a
关键词
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资金
- National Science Foundation through the Center for Chemical Innovation dedicated to Chemistry at the Space-Time Limit (CaSTL) [CHE-1414466]
- Northwestern University Materials Research Science and Engineering Center [DMR-1121262, CHE-1506683, DE-FG02-09ER16109]
- Northwestern University Institute for Catalysis in Energy Processes (ICEP) [DE-FG02-03ER15457]
- Air Force Office of Scientific Research MURI [FA9550-14-1-0003]
- Air Force Research Laboratory [FA8650-15-2-5518]
- Assistant Secretary of Defense for Health Affairs, through the Peer Reviewed Medical Research Program [W81XWH-16-1-0375]
- Direct For Mathematical & Physical Scien [1414466] Funding Source: National Science Foundation
- Division Of Chemistry [1414466] Funding Source: National Science Foundation
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1506683] Funding Source: National Science Foundation
Four decades on, surface-enhanced Raman spectroscopy (SERS) continues to be a vibrant field of research that is growing (approximately) exponentially in scope and applicability while pushing at the ultimate limits of sensitivity, spatial resolution, and time resolution. This introductory paper discusses some aspects related to all four of the themes for this Faraday Discussion. First, the wavelength-scanned SERS excitation spectroscopy (WS-SERES) of single nanosphere oligomers (viz., dimers, trimers, etc.), the distance dependence of SERS, the magnitude of the chemical enhancement mechanism, and the progress toward developing surface-enhanced femtosecond stimulated Raman spectroscopy (SE-FSRS) are discussed. Second, our efforts to develop a continuous, minimally invasive, in vivo glucose sensor based on SERS are highlighted. Third, some aspects of our recent work in single molecule SERS and the translation of that effort to angstrom-scale spatial resolution in ultrahigh vacuum tip-enhanced Raman spectroscopy (UHV-TERS) and single molecule electrochemistry using electrochemical (EC)-TERS will be presented. Finally, we provide an overview of analytical SERS with our viewpoints on SERS substrates, approaches to address the analyte generality problem (i.e. target molecules that do not spontaneously adsorb and/or have Raman cross sections <10(-29) cm(2) sr(-1)), SERS for catalysis, and deep UV-SERS.
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