Electrical transport in single-walled carbon nanotube bundles embedded in Langmuir–Blodgett monolayers

Langmuir films consisting of single-walled carbon nanotubes and surfactant molecules were deposited on substrates with lithographically defined electrode arrays. Atomic force microscopy revealed a different matrix structure of the Langmuir–Blodgett monolayers compared to monolayers on bare substrate...

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Bibliographic Details
Published in:Synthetic metals 2000-04, Vol.110 (3), p.245-249
Main Authors: Krstic, V, Muster, J, Duesberg, G.S, Philipp, G, Burghard, M, Roth, S
Format: Article
Language:English
Subjects:
Atomic force microscopy
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electrical properties of specific thin films
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Exact sciences and technology
Fullerene-like materials
Fullerenes and related materials
Langmuir–Blodgett techniques
Physics
Transport measurements
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Summary:Langmuir films consisting of single-walled carbon nanotubes and surfactant molecules were deposited on substrates with lithographically defined electrode arrays. Atomic force microscopy revealed a different matrix structure of the Langmuir–Blodgett monolayers compared to monolayers on bare substrates. Electrical transport measurements were performed on individual thin bundles at room temperature and 4.2 K. At low temperatures, the current/voltage characteristics show a non-linear dependence with step-like features, which are critically discussed in the frame of Coulomb charging theory and electron tunneling through discrete energy levels.
ISSN:0379-6779
1879-3290
DOI:10.1016/S0379-6779(99)00302-1