Schottky diodes from asymmetric metal-nanotube contacts
Carbon nanotube Schottky diodes were fabricated using asymmetric metal-nanotube contacts. These devices were prepared from semiconducting single-walled carbon nanotubes contacted by one Al or Ti electrode and one Au electrode. Nanotubes formed a low resistance contact with the Au electrode and a Schottky contact with the Al or Ti electrode. Electronic transport through the Schottky barriers was determined by the competition between tunneling and thermionic emission, which could be tuned by a back gate voltage. © 2006 American Institute of Physics.
Lu, C; An, L; Fu, Q; Liu, J; Zhang, H; Murduck, J
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