Journal ArticleDOI
Extreme oxygen sensitivity of electronic properties of carbon nanotubes
TLDR
The results, although demonstrating that nanotubes could find use as sensitive chemical gas sensors, likewise indicate that many supposedly intrinsic properties measured on as-prepared nanotube may be severely compromised by extrinsic air exposure effects.Abstract:
The electronic properties of single-walled carbon nanotubes are shown here to be extremely sensitive to the chemical environment. Exposure to air or oxygen dramatically influences the nanotubes' electrical resistance, thermoelectric power, and local density of states, as determined by transport measurements and scanning tunneling spectroscopy. These electronic parameters can be reversibly "tuned" by surprisingly small concentrations of adsorbed gases, and an apparently semiconducting nanotube can be converted into an apparent metal through such exposure. These results, although demonstrating that nanotubes could find use as sensitive chemical gas sensors, likewise indicate that many supposedly intrinsic properties measured on as-prepared nanotubes may be severely compromised by extrinsic air exposure effects.read more
Citations
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Graphene-based materials in electrochemistry
TL;DR: This critical review will describe recent advances in the development of graphene-based materials from the standpoint of electrochemistry, involving its unusual electronic structure, extraordinary electronic properties and fascinating electron transport.
Journal ArticleDOI
Carbon Nanomaterials in Biosensors: Should You Use Nanotubes or Graphene?
TL;DR: This Review explores issues by presenting the latest advances in electrochemical, electrical, and optical biosensors that use carbon nanotubes and graphene, and critically compares the performance of the two carbon allotropes in this application.
Journal ArticleDOI
Carbon nanotubes: opportunities and challenges
TL;DR: Carbon nanotubes have been shown to be useful for miniaturized electronic, mechanical, electromechanical, chemical and scanning probe devices and materials for macroscopic composites.
Journal ArticleDOI
Electronic and transport properties of nanotubes
TL;DR: In this paper, the electronic and transport properties of carbon nanotubes are reviewed, and the fundamental aspects of conduction regimes and transport length scales are presented using simple models of disorder, with the derivation of a few analytic results concerning specific situations of short and long-range static perturbations.
Journal ArticleDOI
Enzyme-Coated Carbon Nanotubes as Single-Molecule Biosensors
TL;DR: This first demonstration of nanotube-based biosensors provides a new tool for enzymatic studies and opens the way to biomolecular diagnostics.
References
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Journal ArticleDOI
Crystalline Ropes of Metallic Carbon Nanotubes
Andreas Thess,R. S. Lee,Pavel Nikolaev,Hongjie Dai,Pierre Petit,J. Robert,Chunhui Xu,Young Hee Lee,Seong-Gon Kim,Andrew G. Rinzler,Daniel T. Colbert,Gustavo E. Scuseria,David Tománek,John E. Fischer,Richard E. Smalley +14 more
TL;DR: X-ray diffraction and electron microscopy showed that fullerene single-wall nanotubes (SWNTs) are nearly uniform in diameter and that they self-organize into “ropes,” which consist of 100 to 500 SWNTs in a two-dimensional triangular lattice with a lattice constant of 17 angstroms.
Book
Science of fullerenes and carbon nanotubes
TL;DR: In this paper, the authors present a detailed overview of the properties of Fullerenes and their properties in surface science applications, such as scanning tunnel microscopy, growth and fragmentation studies, and chemical synthesis.
Journal ArticleDOI
Storage of hydrogen in single-walled carbon nanotubes
A. C. Dillon,Kim M. Jones,T. A. Bekkedahl,Ching-Hwa Kiang,Donald S. Bethune,Michael J. Heben +5 more
TL;DR: In this article, a gas can condense to high density inside narrow, single-walled nanotubes (SWNTs) under conditions that do not induce adsorption within a standard mesoporous activated carbon.
Journal ArticleDOI
New one-dimensional conductors: Graphitic microtubules.
TL;DR: It is predicted that carbon microtubules exhibit striking variations in electronic transport, from metallic to semiconducting with narrow and moderate band gaps, depending on the diameter of the tubule and on the degree of helical arrangement of the carbon hexagons.
Journal ArticleDOI
Individual single-wall carbon nanotubes as quantum wires
Sander J. Tans,Michel Devoret,Hongjie Dai,Andreas Thess,Richard E. Smalley,L.J. Geerligs,Cees Dekker +6 more
TL;DR: In this article, electrical transport measurements on individual single-wall nanotubes have been performed to confirm the theoretical predictions of single-walled nanotube quantum wires, and they have been shown to act as genuine quantum wires.