Carbon nanotubule enclosing a foreign material

Details Carbon nanotubule enclosing a foreign material Carbon nanotubule enclosing a foreign material

1993-12-21

1995-10-10

Mintel, William

Active solid-state devices (e.g., transistors, solid-state diode

Combined with electrical contact or lead

257741, 257746, 4234472, 423DIG39, 423DIG40, H01L 2941, H01L 2943, D01F 912

Patent

active

054573432

ABSTRACT:
The invention provides a nanometer sized carbon tubule enclosing a foreign material except for carbon. The carbon tubule comprises a plurality of tubular graphite monoatomic sheets coaxially arranged. The foreign material is introduced through a top portion of the carbon tubule. The introduction of the foreign material is accomplished after forming an opening at the top portion of the carbon tubule either by contacting the foreign material with the top portion of the carbon tubule together with a heat treatment or by an evaporation of the foreign material on the top portion of the carbon tubule together with the heat treatment. The foreign material is introduced only in a center hollow space defined by an internal surface of the most inner tubular graphite monoatomic sheet.

REFERENCES:
patent: 5346683 (1994-09-01), Green et al.
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Ajayan et al., Capillarity-Induced Filling of Carbon Nanotubes, Nature, vol. 361, Jan. 28, 1993, pp. 333-334.
Dunlap, B. I., Connecting Carbon Tubules, Phys. Rev. B, vol. 46, No. 3, Jul. 15, 1992, pp. 1933-1936.
Ajayan et al., Opening Carbon Nanotubes with Oxygen and Implications for Filling, Nature, vol. 362, Apr. 8, 1993, pp. 522-525.
Yi et al., Atomic Structure and Doping of Microtubules, Phys. Rev. B, vol. 47, No. 3, Jan. 15, 1993, pp. 1708-1711.
Tsang et al., Thinning and Opening of Carbon Nanotubes by Oxidation Using Carbon Dioxide, Nature, vol. 362, Apr. 8, 1993, pp. 520-522.
By S. Iijima, "Helical Microtubules of graphitic carbon", Letters to Nature, Nov. 7, 1991, vol. 354, pp. 56-58.
By N. Hamada et al., "New One-Dimensional Conductors: Graphitic Microtubules", Physical Review Letters, Mar. 9, 1992, vol. 68, No. 10, pp. 1579-1581.
By S. Iijima et al., "Pentagons, heptagons and negative curvature in graphite microtubule growth", Nature-International Weekly Journal of Science, Apr. 30, 1992, vol. 356, No. 6372, pp. 776-778.

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