Download or read book Ultrahigh vacuum Studies of Surface Enhanced Raman Scattering from Absorbates on Modulated Silver Surfaces written by Pia Naoko Sanda and published by . This book was released on 1982 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Enhanced Raman Scattering Studies in Ultrahigh Vacuum written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Enhanced Raman Scattering written by Richard Chang and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the course of the development of surface science, advances have been identified with the introduction of new diagnostic probes for analytical characterization of the adsorbates and microscopic structure of surfaces and interfaces. Among the most recently de veloped techniques, and one around which a storm of controversy has developed, is what has now been earmarked as surface enhanced Raman scattering (SERS). Within this phenomenon, molecules adsorbed onto metal surfaces under certain conditions exhibit an anomalously large interaction cross section for the Raman effect. This makes it possible to observe the detailed vibrational signature of the adsorbate in the ambient phase with an energy resolution much higher than that which is presently available in electron energy loss spectroscopy and when the surface is in contact with a much larger amount of material than that which can be tolerated in infrared absorption experiments. The ability to perform vibrational spectroscopy under these conditions would lead to a new understanding about the chemical identity, geome try, and bonding of adsorbed material at a level previously unacces sible. It is for these reasons that the last few years have brought an explosion of activity surrounding the exploitation of SERS. The search for the origines) of the anomalous enhancement has given rise to a research sub-activity of its own. Efforts to explain the en hancement have led to an increased understanding of the whole range of phenomena associated with the interaction of photons with adsor bates and metal surfaces.
Download or read book Surface Enhanced Raman Scattering from Pyridine on Ag 111 written by P. N. Sanda and published by . This book was released on 1980 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report the first ultrahigh vacuum study of surface enhanced Raman scattering from pyridine adsorbed on a clean well-defined single-crystal silver surface. The surface contains a smooth modulation (1 micron periodicity) to allow optical coupling to surface plasmon polaritons. A large mode-selective enhancement of the Raman signal from the first monolayer is observed at surface plasmon polariton resonance. (Author).
Download or read book Surface Enhanced Raman Vibrational Studies at Solid Gas Interfaces written by I. Pockrand and published by Springer. This book was released on 2006-01-31 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Enhanced Raman Scattering written by Katrin Kneipp and published by Springer Science & Business Media. This book was released on 2006-06-21 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: Almost 30 years after the first reports on surface-enhanced Raman signals, the phenomenon of surface-enhanced Raman scattering (SERS) is now well established. SERS gained particular interest after single-molecule Raman spectroscopy had been demonstrated. This book summarizes and discusses present theoretical approaches that explain the phenomenon of SERS and reports on new and exciting experiments and applications of the fascinating spectroscopic effect.
Download or read book Frontiers of Surface Enhanced Raman Scattering written by Yukihiro Ozaki and published by John Wiley & Sons. This book was released on 2014-02-19 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive presentation of Surface-Enhanced Raman Scattering (SERS) theory, substrate fabrication, applications of SERS to biosystems, chemical analysis, sensing and fundamental innovation through experimentation. Written by internationally recognized editors and contributors. Relevant to all those within the scientific community dealing with Raman Spectroscopy, i.e. physicists, chemists, biologists, material scientists, physicians and biomedical scientists. SERS applications are widely expanding and the technology is now used in the field of nanotechnologies, applications to biosystems, nonosensors, nanoimaging and nanoscience.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1982 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Enhanced Raman Scattering Studies of Molecules Adsorbed on Silver Electrodes and Silver Colloids written by 金文錫 and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Enhanced Raman Spectroscopy written by Sebastian Schlücker and published by John Wiley & Sons. This book was released on 2011-09-19 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering everything from the basic theoretical and practical knowledge to new exciting developments in the field with a focus on analytical and life science applications, this monograph shows how to apply surface-enhanced Raman scattering (SERS) for solving real world problems. From the contents: * Theory and practice of SERS * Analytical applications * SERS combined with other analytical techniques * Biophysical applications * Life science applications including various microscopies Aimed at analytical, surface and medicinal chemists, spectroscopists, biophysicists and materials scientists. Includes a Foreword by the renowned Raman spectroscopist Professor Wolfgang Kiefer, the former Editor-in-Chief of the Journal of Raman Spectroscopy.
Download or read book Surface Enhanced Raman Scattering New Theoretical Approaches Materials and Strategies written by Ivano Alessandri and published by Frontiers Media SA. This book was released on 2020-03-25 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Enhanced Raman Scattering written by Ujjal Kumar Sur and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The steady and fast development of surface and interfacial science have set up innovative openings for new diagnostic probes for analytical characterization of the adsorbates and determination of the microscopic structure of surfaces and interfaces. Regrettably Raman spectroscopy, being a weak scattering surface phenomenon, had seized no part in it, until the discovery and development of Surface Enhanced Raman Scattering (SERS) in the early 1970's that has opened up broad research fields both in the physics and chemistry of interfaces. The discovery of SERS by Fleischmann and coworkers in 1974 at the University of Southampton, United Kingdom is closely connected with the electrochemical systems. They reported an extraordinary million-fold enhancement of weak Raman signal from pyridine molecules adsorbed onto electrochemically roughened silver electrode compared to that from free molecules in liquid environment. In early 1976, Richard P. Van Duyne and David Jeanmaire at Northwestern University observed the effect and in early 1977, M. G. Albrecht and J. A. Creighton reported similar observation. This review article deals with the development of SERS research with special importance is given to the fabrication of various SERS-active substrates, mechanism of SERS effect and its various potential applications ranging from sensors to biomedical applications.
Download or read book Using Correlated Super resolution Optical and Structural Studies to Investigate Surface enhanced Raman Scattering on Silver Gold Nanoparticles written by Maggie Leona Weber and published by . This book was released on 2015 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface-enhanced Raman scattering (SERS) from organic molecules is used to study how geometry affects plasmonic enhancement in noble metal nanoparticles using super-resolution analysis techniques coupled with scanning electron microscope (SEM) imaging. We demonstrate that super-resolution analysis can track emission from Raman-active molecules on nanoaggregate surfaces with resolution typically better than 5 nm, a significant improvement over the diffraction limit. This optical analysis technique is used to identify active junction regions, known as hot spots, in correlated SEM structural images of aggregated particles based on shape, size, and angular position of SERS emission. This correlated analysis is further extended to study the mechanism of silver nanoparticle luminescence and its positional relationship to SERS emission. These studies support the hypothesis that silver luminescence is enhanced via a different mechanism than SERS. Discrete dipole approximation calculations agree with experimental results, indicating that SERS emission is a product of local plasmonic enhancement in specific junction regions between nanoparticles whereas silver luminescence is dependent upon nanoaggregate geometry and the collective plasmon modes within a structure. These theoretical calculations of luminescence centroid location can assist with SERS-active junction region assignment in higher order aggregates (e.g. trimers, tetramers, etc.) Finally, correlated optical and structural studies are used to develop understanding of site-specific electrochemical potentials on silver and gold nanoparticle aggregates using a redox active Raman reporter molecule. We demonstrate that there is a weak correlation between emission centroid location and bulk sample potential. Silver colloid studies demonstrate variability in modulation behavior and are highly unpredictable, whereas gold colloids with the redox molecule covalently tethered to their surface via a gold-thiol bond show more reproducible modulation. Furthermore, these tethered studies demonstrate geometrical agreement between site-specific emission at negative potentials and junction regions in nanoaggregate SEM images indicating that plasmonic enhancement may affect local nanoparticle surface potentials.
Download or read book Surface enhanced Raman Studies of Molecules Adsorbed on Silver Colloid Surfaces written by Jung-Sang Suh and published by . This book was released on 1985 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Enhanced Ramam Scattering Studies in Ultrahigh Vacuum written by Thomas Huntington Wood and published by . This book was released on 1980 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surface Enhanced Vibrational Spectroscopy written by Ricardo Aroca and published by Wiley. This book was released on 2006-05-01 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface Enhanced Vibrational Spectroscopy (SEVS) has reached maturity as an analytical technique, but until now there has been no single work that describes the theory and experiments of SEVS. This book combines the two important techniques of surface-enhanced Raman scattering (SERS) and surface-enhanced infrared (SEIR) into one text that serves as the definitive resource on SEVS. Discusses both the theory and the applications of SEVS and provides an up-to-date study of the state of the art Offers interpretations of SEVS spectra for practicing analysts Discusses interpretation of SEVS spectra, which can often be very different to the non-enhanced spectrum - aids the practicing analyst
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1981 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
