Carbon Nanotube Electronic Displacement Encoder with Sub-Nanometer Resolution

Journal Article · Mon Jan 01 00:00:00 EST 2007 · Journal of Computational and Theoretical Nanoscience

OSTI ID:931438

Jiang, H. ^[1]; Yu, M. -F. ^[1]; Lu, Jun-Qiang ^[2]; Huang, Y. ^[1]; Johnson, H. T. ^[1]; Zhang, Xiaoguang ^[2]; Ferreira, P. ^[1]

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1. University of Illinois, Urbana-Champaign
2. ORNL

Electric conductance of a telescope double-walled carbon nanotube oscillates as a function of telescoping distance. The period of such oscillation is one half of the lattice constant of graphene, $a/2 = 0.123$nm, instead of the lattice constant $$a$$ as expected. The halving of the period results from the combination of the periodic interlayer lattice alignment and the occurrence of antiresonance. When combined with the periodicity in the energy space at a fixed displacement, the telescopic displacement can be reliably and accurately determined to the sub-nanometer resolution. This effect can be used to design an electronic displacement encoder.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 931438
• Journal Information: Journal of Computational and Theoretical Nanoscience, Vol. 4, Issue 3
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
77 NANOSCIENCE AND NANOTECHNOLOGY
CARBON
NANOTUBES
OSCILLATIONS
PERIODICITY
RESOLUTION
TELESCOPES
ELECTRIC CONDUCTIVITY