Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Reexamination Certificate
2006-04-18
2006-04-18
Thile, H. (Department: 1773)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
C428S403000, C977S726000
Reexamination Certificate
active
07029751
ABSTRACT:
An isotope-doped carbon nanotube (40) includes a plurality of first carbon nanotube segments (402) having carbon-12 isotopes and a plurality of second carbon nanotube segments (404) having carbon-13 isotopes. The first and second carbon nanotube segments are alternately arranged along a longitudinal direction of the carbon nanotube. Three preferred methods employ different isotope sources to form isotope-doped carbon nanotubes. In a chemical vapor deposition method, different isotope source gases are alternately introduced. In an arc discharge method, a power source is alternately switched between different isotope anodes. In a laser ablation method, a laser is alternately focused on different isotope targets. In addition, an apparatus for implementing the preferred methods is provided.
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Fan Shou-Shan
Liu Liang
Chung Wei Te
Hon Hai - Precision Ind. Co., Ltd.
Thile H.
Tsinghua University
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