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Structure and Vibrational Properties of Isolated Carbon Nanocrystallites

Published online by Cambridge University Press:  15 February 2011

V. I. Merkulov ,
J. S. Lannin  and
J. M. Cowley
V. I. Merkulov
Affiliation:
Dept. of Physics, Penn State University, University Park, PA 16802
J. S. Lannin
Affiliation:
Dept. of Physics, Penn State University, University Park, PA 16802
J. M. Cowley
Affiliation:
Dept. of Physics and Astronomy, Arizona State University, Tempe, AZ 85287–1504
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Abstract

Small isolated nanocrystallites of carbon have been prepared on amorphous SiO2 and studied by interference enhanced Raman scattering (IERS) and scanning transmission electron microscopy (STEM). A new mode of dark field STEM, using a thin annular detector, has allowed imaging of 1–2 nm graphite-like particles using (002) diffraction. For such small particles, the Raman spectra provide the first evidence for changes in the phonon density of states of a nanocrystalline system.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 452 , 1996 , 225
Copyright
Copyright © Materials Research Society 1997

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References

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