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Continuum theory for nanotube piezoelectricity.

Authors
  • Michalski, P J
  • Sai, Na
  • Mele, E J
Type
Published Article
Journal
Physical review letters
Publication Date
Sep 09, 2005
Volume
95
Issue
11
Pages
116803–116803
Identifiers
PMID: 16197029
Source
Medline
License
Unknown

Abstract

We develop and solve a continuum theory for the piezoelectric response of one-dimensional nanotubes and nanowires, and apply the theory to study electromechanical effects in boron-nitride nanotubes. We find that the polarization of a nanotube depends on its aspect ratio, and a dimensionless constant specifying the ratio of the strengths of the elastic and electrostatic interactions. The solutions of the model as these two parameters are varied are discussed. The theory is applied to estimate the electric potential induced along the length of a boron-nitride nanotube in response to a uniaxial stress.

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