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Structure and Vibrational Properties of Isolated Carbon Nanocrystallites

  • V. I. Merkulov (a1), J. S. Lannin (a1) and J. M. Cowley (a2)


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.



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1. Steigerwald, M.L. et al. J. Am. Chem. Soc. 110, 3046 (1988)
2. Schlupper, S. et al. Phys. Rev. Lett. 72, 2648 (1994)
3. Alben, R., Weaire, D., Smith, J.E. Jr., and Brodsky, M.H., Phys. Rev. B11, 2271 (1975)
4. Lannin, J.S. in Semiconductors and Semimetals, Vol. 21(B) ed. Pankove, J.I. (Academic Press, 1984), p. 159
5. Fortner, J.A. and Lannin, J.S., Surf. Sci. 254, 251 (1991)
6. Tuinstra, F. and Koenig, J.L., J. Chem. Phys. 53, 1126 (1970)
7. Nemanich, R.J. and Solin, S.A., Phys. Rev. B20, 392 (1979)
8. Li, F. and Lannin, J.S., Appl. Phys. Lett. 61, 2116 (1992)
9. Oberlin, A. in Chemistry and Physics of Carbon, Vol. 22 ed. Thrower, P.A. (M. Dekker, N.Y., 1989), p. 1
10. Mildner, D.F.R. and Carpenter, J.M., Proc. 5th Int. Conf. Amorphous and Liquid Semiconductors, ed. Stuke, J. and Brenig, W. (Taylor and Francis, London, 1974) p. 463
11. Li, F. and Lannin, J.S., Phys. Rev. Lett. 65, 1905 (1990)
12. Connell, G.A.N., Nemanich, R.J. and Tsai, C.C., Appl. Phys. Lett. 36, 31 (1980)
13. Bacsa, W.S. and Lannin, J.S., Appl. Phys. Lett. 61, 19 (1992)
14. Crewe, A.V., Wall, J. and Langmore, J.P., Science 168, 1338 (1970)
15. Cowley, J.M., Ultramicroscopy 49, 4 (1993)
16. Liu, R.-J. and Cowley, J.M., J. Microscopy Soc. Amer. (1996) (in press)
17. Cowley, J.M., Merkulov, V.I. and Lannin, J.S., Ultramicroscopy (in press)
18. Kamitakahara, W.A., Lannin, J.S., Cappelletti, R.L., Copley, J.R.D. and Li, F., Physica B 180, 709 (1992)
19. Wang, C.Z. and Ho, K.M. (private communication)


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