Contact Resistance to a One-Dimensional Quasi-Ballistic Nanotube/Wire

A distributed contact model is presented for a 1-D quasi-ballistic conductor deriving a contact resistance versus contact length as a hyperbolic cotangent relationship in terms of the quantum of resistance, the coupling conductance g c of the contact, and the ballistic mean free path (λ b ). The mod...

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Bibliographic Details
Published in:IEEE electron device letters 2011-03, Vol.32 (3), p.246-248
Main Author: Solomon, Paul M
Format: Article
Language:English
Subjects:
Carbon nanotube (CNT)
Carbon nanotubes
Conductance
Conductors
Contact
Contact resistance
Couplings
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Mean free path
Metals
Nanocomposites
Nanomaterials
Nanoscale materials and structures: fabrication and characterization
Nanostructure
Nanotubes
Physics
Resistance
Transistors
transmission-line model (TLM)
Wire
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Description
Summary:A distributed contact model is presented for a 1-D quasi-ballistic conductor deriving a contact resistance versus contact length as a hyperbolic cotangent relationship in terms of the quantum of resistance, the coupling conductance g c of the contact, and the ballistic mean free path (λ b ). The model gave excellent fits to recent contact resistance-versus-contact length data for carbon nanotubes giving g c = 2 μS/nm and λ b = 380 nm.
ISSN:0741-3106
1558-0563
DOI:10.1109/LED.2010.2095821