Carbon Nanopipettes

We report the growth and detailed structural investigation of a new morphological manifestation of carbon-based nanostructures in the form of tapered whiskers with uniform 1−3 nm hollowness. The base of the whiskers is in the submicron scale, tapering uniformly to form a pointed tip in the form of a...

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Bibliographic Details
Published in:Nano letters 2003-05, Vol.3 (5), p.671-673
Main Authors: Mani, Radhika C, Li, Xiang, Sunkara, Mahendra K, Rajan, Krishna
Format: Article
Language:English
Subjects:
Clusters, nanoparticles, and nanocrystalline materials
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Fullerenes and related materials
diamonds, graphite
Materials science
Nanoscale materials and structures: fabrication and characterization
Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals
Physics
Specific materials
Structure of solids and liquids
crystallography
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
Whiskers and dendrites (growth, structure, and nonelectronic properties)
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Summary:We report the growth and detailed structural investigation of a new morphological manifestation of carbon-based nanostructures in the form of tapered whiskers with uniform 1−3 nm hollowness. The base of the whiskers is in the submicron scale, tapering uniformly to form a pointed tip in the form of a pipette. These hollow nanopipettes have a shell containing helical graphitic sheets. We propose that these whiskers grow by competing phenomena of growth and etching that control their aspect ratio.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl034125o