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Applied Physics Letters / Volume 96 / Issue 18 / NANOSCALE SCIENCE AND DESIGN

Appl. Phys. Lett. 96, 183108 (2010); http://dx.doi.org/10.1063/1.3427419 (3 pages)

The effect of acoustic phonon scattering on the carrier mobility in the semiconducting zigzag single wall carbon nanotubes

B. Xu1, Y. D. Xia1, J. Yin2, X. G. Wan2, K. Jiang1, A. D. Li1, D. Wu1, and Z. G. Liu1

1Department of Materials Science and Engineering, National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, People's Republic of China
2Department of Physics and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, People's Republic of China

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(Received 8 March 2010; accepted 16 April 2010; published online 6 May 2010)

Carrier mobilities of the semiconducting single wall carbon nanotubes (SWCNTs) have been studied by using the first-principles calculations with the deformation potential approximation, which only considers the scattering by the longitudinal acoustic phonons based on the adapting Bardeen–Shockley theory [ J. Bardeen and W. Shockley, Phys. Rev. 80, 72 (1950) ] to one-dimensional case. From the band structures of the semiconducting SWCNTs, we calculated the effective masses, the stretching modulus, the deformation potential constants. We demonstrated that the calculated intrinsic carrier mobility can reach 106 cm2/V s at room temperature, and the carrier mobilities of the semiconducting SWCNTs show the intriguing alternating behavior.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

ab initio calculations, band structure, carbon nanotubes, carrier mobility, deformation, effective mass, phonons, semiconductor nanotubes

PACS

  • 73.63.Fg

    Nanotubes

  • 63.22.Gh

    Nanotubes and nanowires

  • 81.40.Lm

    Deformation, plasticity, and creep

  • 71.18.+y

    Fermi surface: calculations and measurements; effective mass, g factor

  • 73.21.-b

    Electron states and collective excitations in multilayers, quantum wells, mesoscopic, and nanoscale systems

  • 72.20.Fr

    Low-field transport and mobility; piezoresistance

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3427419

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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