Journal
APPLIED PHYSICS LETTERS
Volume 82, Issue 12, Pages 1947-1949Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1563727
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Liquid gallium was used as a viable and effective solvent and template for high-yield growth of multiwall carbon nanotubes. The gallium-mediated nanotubes thus obtained differ morphologically from nanotubes obtained by using transition metals as catalysts. The nanotubes have a pin-like morphology, generally composed of an oval-shaped tip filled with liquid gallium and a tapered hollow body. The inner diameter of the tube is so large that the inner/outer diameter ratio is usually larger than 0.9. The tubes are naturally opened at both ends. These gallium-filled nanotubes may be used as a nanothermometer in the temperature range of 30 to 550 degreesC. This study opens an interesting route for carbon nanotube synthesis. (C) 2003 American Institute of Physics.
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