Surface-Enhanced Raman Spectroscopy
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TLDR
The use of nanosphere lithography for the fabrication of highly reproducible and robust SERS substrates is described and progress in applying SERS to the detection of chemical warfare agents and several biological molecules is described.Abstract:
The ability to control the size, shape, and material of a surface has reinvigorated the field of surface-enhanced Raman spectroscopy (SERS). Because excitation of the localized surface plasmon resonance of a nanostructured surface or nanoparticle lies at the heart of SERS, the ability to reliably control the surface characteristics has taken SERS from an interesting surface phenomenon to a rapidly developing analytical tool. This article first explains many fundamental features of SERS and then describes the use of nanosphere lithography for the fabrication of highly reproducible and robust SERS substrates. In particular, we review metal film over nanosphere surfaces as excellent candidates for several experiments that were once impossible with more primitive SERS substrates (e.g., metal island films). The article also describes progress in applying SERS to the detection of chemical warfare agents and several biological molecules.read more
Citations
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Localized Surface Plasmon Resonance Spectroscopy and Sensing
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Shape‐Controlled Synthesis of Metal Nanocrystals: Simple Chemistry Meets Complex Physics?
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Controlling the synthesis and assembly of silver nanostructures for plasmonic applications
Matthew Rycenga,Claire M. Cobley,Jie Zeng,Weiyang Li,Christine H. Moran,Qiang Zhang,Dong Qin,Younan Xia +7 more
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Carbon nanodots: synthesis, properties and applications
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Surface-enhanced Raman spectroscopy: concepts and chemical applications.
TL;DR: Chemical applications of SERS cover a broad range of topics such as catalysis and spectroelectrochemistry, single-molecule detection, and (bio)analytical chemistry.
References
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Erin M. Hicks,Xiaoyu Zhang,Shengli Zou,Olga Lyandres,Kenneth G. Spears,George C. Schatz,Richard P. Van Duyne +6 more
TL;DR: In this work, a detailed and systematic study of the plasmonic properties of a novel film over nanowell surface is investigated, resulting in an improvement in the figure of merit.
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Theory of First Layer and Single Molecule Surface Enhanced Raman Scattering (SERS)
TL;DR: The first layer SERS effect is usually attributed to dynamical charge transfer (DCT) between metal and absorbate, following a model by Persson as discussed by the authors, but experiments show that there is no first-layer SERS at smooth noble metal surfaces, in spite of the surface resistance caused by adsorbates, which is also caused by DCT according to Persson.
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On the chloride activation in SERS and single molecule SERS
TL;DR: In this article, the authors give an extensive review of the literature and present own experiments on the action of chloride on the Raman intensities of pyridine on a copper single crystal and on polycrystalline copper.
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