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      Raman spectroscopy of amorphous, nanostructured, diamond-like carbon, and nanodiamond.

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          Abstract

          Raman spectroscopy is a standard characterization technique for any carbon system. Here we review the Raman spectra of amorphous, nanostructured, diamond-like carbon and nanodiamond. We show how to use resonant Raman spectroscopy to determine structure and composition of carbon films with and without nitrogen. The measured spectra change with varying excitation energy. By visible and ultraviolet excitation measurements, the G peak dispersion can be derived and correlated with key parameters, such as density, sp(3) content, elastic constants and chemical composition. We then discuss the assignment of the peaks at 1150 and 1480 cm(-1) often observed in nanodiamond. We review the resonant Raman, isotope substitution and annealing experiments, which lead to the assignment of these peaks to trans-polyacetylene.

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          Author and article information

          Journal
          Philos Trans A Math Phys Eng Sci
          Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
          1364-503X
          1364-503X
          Nov 15 2004
          : 362
          : 1824
          Affiliations
          [1 ] Department of Engineering, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, UK. acf26@eng.cam.ac.uk
          Article
          L6TY9PCPDCQ0QWPG
          10.1098/rsta.2004.1452
          15482988
          86c514d9-4df4-436e-bf8b-98c51ffbc549
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