Hybrid composite including carbon nanotube and...

Details Hybrid composite including carbon nanotube and... Hybrid composite including carbon nanotube and...

2011-01-18

2011-01-18

Choi, Ling-Siu (Department: 1796)

Compositions

Electrically conductive or emissive compositions

Carbide containing

C977S742000, C428S698000, C428S696000, C427S372200

Reexamination Certificate

active

07871545

ABSTRACT:
Hybrid composites including carbon nanotubes and a carbide-derived carbon material, electron emitters including the hybrid composites, methods of preparing the electron emitters, and electron emission devices including the electron emitters are provided. Specifically, a hybrid composite includes at least one carbon nanotube and a carbide-derived carbon material. The carbide-derived carbon material is prepared by thermochemically reacting a carbide compound with a halogen-containing gas to extract substantially all of the elements except for the carbon in the carbide compound. Since the carbon nanotubes and the carbide-derived carbon material are hybridized and composited, a screen effect that may occur when large amounts of carbon nanotubes are used can be prevented, and an electron emitter including the hybrid composite has excellent electron emission capabilities, excellent uniformity, and a long lifetime.

REFERENCES:
patent: 2001-048507 (2001-02-01), None
patent: 10-2005-0024674 (2005-03-01), None
patent: WO 98/54111 (1998-12-01), None
Zuleta, et al., “Determination of diffusion coefficients of BF4-inside carbon nanopores using the single particle microelectrode technique,” Journal of Electroanalytical Chemistry, vol. 586 (2006) pp. 247-259.

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