Total internal reflection Raman spectroscopy

Total internal reflection (TIR) Raman spectroscopy is an experimentally straightforward, surface-sensitive technique for obtaining chemically specific spectroscopic information from a region within approximately 100-200 nm of a surface. While TIR Raman spectroscopy has long been overshadowed by surf...

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Bibliographic Details
Published in:Analyst (London) 2012-01, Vol.137 (1), p.35-48
Main Authors: Woods, David A, Bain, Colin D
Format: Article
Language:English
Subjects:
Adsorption
Analytical chemistry
Chemistry
Exact sciences and technology
General, instrumentation
Instrumentation
Lipid Bilayers - analysis
Lipid Bilayers - chemistry
Lipids
Liquid crystals
Liquid Crystals - analysis
Liquid Crystals - chemistry
Lubricants - analysis
Lubricants - chemistry
Lubrication
Polymers - analysis
Polymers - chemistry
Raman spectroscopy
Reflection
Spectrometric and optical methods
Spectrum Analysis, Raman - instrumentation
Spectrum Analysis, Raman - methods
Surface chemistry
Surface Properties
Surface-Active Agents - analysis
Surface-Active Agents - chemistry
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Description
Summary:Total internal reflection (TIR) Raman spectroscopy is an experimentally straightforward, surface-sensitive technique for obtaining chemically specific spectroscopic information from a region within approximately 100-200 nm of a surface. While TIR Raman spectroscopy has long been overshadowed by surface-enhanced Raman scattering, with modern instrumentation TIR Raman spectra can be acquired from sub-nm thick films in only a few seconds. In this review, we describe the physical basis of TIR Raman spectroscopy and illustrate the performance of the technique in the diverse fields of surfactant adsorption, liquid crystals, lubrication, polymer films and biological interfaces, including both macroscopic structures such as the surfaces of leaves, and microscopic structures such as lipid bilayers. Progress, and challenges, in using TIR Raman to obtain depth profiles with sub-diffraction resolution are described. This review discusses the use of total internal reflection Raman spectroscopy to study molecules at interfaces.
ISSN:0003-2654
1364-5528
DOI:10.1039/c1an15722a