Micro-Raman Spectroscopy of Nanostructures

Abstract

This chapter introduces the basic methodology of micro-Raman spectroscopy (μRS) and presents an overview of its application to organic and inorganic nanostructures using specific examples from literature. Following a brief introduction to the technique, the chapter presents an overview of the instrumentation underlining the similarities and differences compared to conventional Raman spectroscopy. The application of μRS to characterize a wide variety of nanomaterials which include polymeric, biological, inorganic and hybrid materials is presented. It is applied in mapping the chemical composition and phase of nanomaterials, probing structure and properties of low-dimensional carbon systems, crystallinity and crystal orientation, nanofillers orientation in composites and monitoring internal stress with nanoscale resolution. The combination of μRS with surface-enhanced Raman scattering (SERS) that broadens the applications of μRS is also discussed. Micro-Raman is a unique tool to address several fundamental aspects of SERS such as nature of the hot spots (interstices of closely separated metal nanostructures), dependence of the enhancement on the orientation of the anisotropic nanostructures and aggregates with respect to polarization of the incident light. The unique combination of rich molecular information, high spatial resolution, nondestructive nature, and simplicity makes μRS an extremely valuable tool for characterization of nanostructures.

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Title
Micro-Raman Spectroscopy of Nanostructures
Book Title
Raman Spectroscopy for Nanomaterials Characterization
Book DOI
10.1007/978-3-642-20620-7
Chapter DOI
10.1007/978-3-642-20620-7_15
Part of
Volume
Editors
  • Challa S. S. R. Kumar (1)
  • Editor Affiliation
  • 1 Center for Advanced Microstructures and Devices, Baton Rouge, LA, USA
  • Authors
  • Ramesh Kattumenu (1_15)
  • Chang H. Lee (1_15)
  • Valery N. Bliznyuk (2_15)
  • Srikanth Singamaneni (1_15)
  • Author Affiliation
  • 1_15 Department of Mechanical Engineering and Materials Science, School of Engineering and Applied Sciences, Washington University, St. Louis, MO, 63130, USA
  • 2_15 Materials Science and Engineering Department, College of Engineering and Applied Sciences, Western Michigan University, Kalamazoo, MI, 49008, USA
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