Selective synthesis of semiconducting carbon nanotubes

Details Selective synthesis of semiconducting carbon nanotubes Selective synthesis of semiconducting carbon nanotubes

2006-05-02

2006-05-02

Pert, Evan (Department: 2826)

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

Including semiconductor material other than silicon or...

C257S618000, C438S478000, C438S507000, C977S726000

Reexamination Certificate

active

07038299

ABSTRACT:
Methods for selecting semiconducting carbon nanotubes from a random collection of conducting and semiconducting carbon nanotubes synthesized on multiple synthesis sites carried by a substrate and structures formed thereby. After an initial growth stage, synthesis sites bearing conducting carbon nanotubes are altered to discontinue synthesis at these specific synthesis sites and, thereby, halt lengthening of the conducting carbon nanotubes. Synthesis sites bearing semiconducting carbon nanotubes are unaffected by the alteration so that semiconducting carbon nanotubes may be lengthened to a greater length than the conducting carbon nanotubes.

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