Electrical characterization of devices based on carbon nanotube films

Koechlin, Charlie; Maine, Sylvain; Haidar, Riad; Trétout, Brigitte; Loiseau, Annick; Pelouard, Jean-Luc
March 2010
Applied Physics Letters;3/8/2010, Vol. 96 Issue 10, p103501
Academic Journal
Statistical study of electrical conduction on a large array of devices based on carbon nanotube films shows a weakly dispersive film conductivity, and a specific contact resistance of 1.1 10-6 Ω cm2, which is four orders of magnitude lower than previously reported values. This allows identifying the conductivity of the carbon nanotube films as driven by a fluctuation induced tunneling mechanism. Such results pave the way to the realization of optoelectronic devices, such as highly sensitive light or gas sensor arrays.


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