The effect of deformation on room temperature Coulomb blockade using conductive carbon nanotubes
Legum, B., Cooper, R., Mattia, D., Gogotsi, Y. and Layton Bradley, E., 2007. The effect of deformation on room temperature Coulomb blockade using conductive carbon nanotubes. Engineering in Medicine and Biology Society (29th Annual International Conference of the IEEE), 2007, pp. 4206-10.
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We report fluctuations in resistivity and the manifestation of Coulomb blockade phenomena of conductive multiwalled carbon nanotubes under buckling loads. Individual nanotubes were suspended and soldered between two indium-dipped tungsten probe tips. Using the electrical connection between the probes and the nanotube, electrical measurements were taken with the tube straight (unstrained) and bent (strained). Typical resistances were in the 10 G Omega range with resistivities in the 15 to 30 Omega-m range within the Coulomb blockade region of -1.0 to -0.4 V. Coulomb blockade, or electron tunneling events, appeared to occur at one of the contact points. This effect was diminished or lost once the carbon weld was broken.
|Creators||Legum, B., Cooper, R., Mattia, D., Gogotsi, Y. and Layton Bradley, E.|
|Uncontrolled Keywords||0 (nanotubes, *electric conductivity, mechanical, carbon, carbon), stress, *nanotubes, weight-bearing|
|Departments||Faculty of Engineering & Design > Chemical Engineering|
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