The adsorption increases the polarizability of the molecule, which can be further increased by charge transfer between the adsorbed molecule and the metallic surface induced by the incident radiation [ 28 , 29 ]. The applied electrical potential can also be considered in cases where the molecules are adsorbed in an electrode. The SERS technique permits the study of surface interactions, adsorption process, electrode reactions, biological systems, single molecule detection, and so on [ 30 , 31 , 32 , 33 ]. Hence, this introduction tries to summarize the principles of main mechanisms of intensification of the Raman signal.
As a consequence, this combination opens the opportunity to study the Raman signal at unparalleled spatial resolution. In the present book, some examples of the state-of-the-art applications of Raman spectroscopy in characterization of materials and biomaterials, mainly through resonance Raman RR and surface-enhanced Raman spectroscopy SERS are deeply discussed. Help us write another book on this subject and reach those readers. Login to your personal dashboard for more detailed statistics on your publications. Edited by Gustavo Morari Do Nascimento. Sutherland, Sergey I. Bozhevolnyi, Kjeld Pedersen and Andrea Toma.
We are IntechOpen, the world's leading publisher of Open Access books. Built by scientists, for scientists. Our readership spans scientists, professors, researchers, librarians, and students, as well as business professionals. Downloaded: Introduction The vibrational spectroscopies have been largely employed in the determination of the molecular structure and played a central role in many areas, from fundamental chemistry to materials engineering.
Raman scattering The Raman spectra have a different origin compared to infrared absorption IR ; an inelastic scattering process is responsible for the appearance of the vibrational bands. Surface-enhanced Raman spectroscopy The Raman signal can also be amplified by the adsorption of molecules in certain metallic surfaces. Outlook Hence, this introduction tries to summarize the principles of main mechanisms of intensification of the Raman signal. How to cite and reference Link to this chapter Copy to clipboard. Cite this chapter Copy to clipboard Gustavo M. Do Nascimento April 18th A Google Scholar.
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Introductory Raman Spectroscopy
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