Electron transport in metal/multiwall carbon nanotube/metal structures (metal=Ti or Pt/Au)

Kanda, Akinobu; Ootuka, Youiti; Tsukagoshi, Kazuhito; Aoyagi, Yoshinobu
August 2001
Applied Physics Letters;8/27/2001, Vol. 79 Issue 9, p1354
Academic Journal
We report observation of the Coulomb blockade effect in a metal-on-tube metal/multiwall carbon nanotube (MWNT)/metal structure (metal=Ti or Pt/Au). We find that the tunnel barrier is located in the interface between the MWNT and the metal electrode, and that the tunnel resistance depends crucially on the electrode material. A possible origin of the high contact barrier is discussed. © 2001 American Institute of Physics.


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