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Article: Researchers from University of California describe findings in nanotechnology.
- Article from:
- Nanotechnology Weekly
- Article date:
- November 9, 2009
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"We investigate electronic devices consisting of individual, metallic, single-walled carbon nanotubes contacted by Pt electrodes in a field effect transistor configuration, focusing on improvements to the metal-nanotube contact resistance as the devices are annealed in inert environments including ultrahigh vacuum," scientists in the United States report.
"At moderate temperatures (T
<880 K), thermal processing results in high resistance contacts with thermally activated barriers. Higher temperatures (T> 880 K) achieve nearly transparent contacts," wrote A.A. Kane and colleagues, University of California.
The researchers concluded: "In the latter case, analytical surface measurements reveal the catalytic decomposition of hydrocarbons into graphene layers on the Pt surface, ...