Abstract
The problem of nanotube growth macrokinetics is viewed within the framework of the continuum surface diffusion equation combined with step-flow growth kinetics. The differences in incorporation rates of adatoms approaching the growth steps from “upper” or “lower” terraces are taken into account. These differences can lead to the onset of surface island nucleation in front of a propagating step. This effect is able to cause formation of defects in the growing layer and even to inhibit stable step-flow modes of nanotube growth. The segregation effect of a second phase (BN) in front of the propagating of C layer step is considered, suggesting that it may cause increase in BN concentration and nucleation of islands leading to BN inclusions in C layers or the propagation of a BN layer over C layer.
Similar content being viewed by others
References
S. Iijima, Nature 354, 56 (1991).
T. W. Ebbesen and P. M. Ajayan. Nature 358, 220 (1992).
S. Iijima, P. M. Ajayan and T. Ichihashi, Phys. Rev. Lett. 69, 3100 (1992).
S. Iijima, Materials Science and Engineering B19, 172 (1993).
D. Bernaerts Amelinckx, X. B. Zhang, G. Van Tendeloo and J. Van Landuyt. Science 267, 1334(1995).
P. M. Ajayan, Prog. Crystal Growth and Charact. 38, 37 (1997).
Y. H. Lee, S. G. Kim and D. Tomanek, Phys. Rev. Lett. 78, 2393 (1997).
J.-C. Charlier, A. De Vita, X. Blase and R. Car. Science 275, 646 (1997); X. Blase, A. De Vita, J.-C. Charlier and R. Car.Phys. Rev. Lett. 80, 1666 (1998).
A. Maiti, C. J. Brabec, C. M. Roland and J. Bernholc, Phys. Rev.B 52, 14850 (1995); A. Maiti, C. J. Brabec and J. Bernholc.Phys. Rev. B 55, 6097 (1997).
O. A. Louchev. Appl. Phys. Lett. 71, 3522 (1997).
O. A. Louchev and Y. Sato, Appl. Phys. Lett. 74. 194 (1999)
F. Okuyama and I. Ogasawara. Appl. Phys. Lett. 71, 623 (1997).
K. Suenaga, C. Colliex, N. Demoncy, A. Loiseau, H. Pascard, F. Willaime, Science 278, 653 (1997).
K. Suenaga, F. Willaime, A. Loiseau, C. Colliex, Appl. Phys. A 68, 301 (1999).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Louchev, O.A., Sato, Y. A Surface Diffusion Model for Nanotube Growth. MRS Online Proceedings Library 593, 69–74 (1999). https://doi.org/10.1557/PROC-593-69
Published:
Issue Date:
DOI: https://doi.org/10.1557/PROC-593-69