Tunneling between carbon nanofiber and gold electrodes

Authors

Toshishige Yamada, Santa Clara UniversityFollow
Tsutomu Saito
Makoto Suzuki
Patrick Wilhite, Santa Clara UniversityFollow
Xuhui Sun
Navid Akhavantafti
Drazen Fabris, Santa Clara UniversityFollow
Cary Y. Yang, Santa Clara UniversityFollow

Document Type

Article

Publication Date

2-15-2010

Publisher

American Institute of Physics Publishing

Abstract

In a carbon nanofiber (CNF)-metal system such as a bridge between two gold electrodes, passing high current (current stressing) reduces the total resistance of the system (CNF resistance RCNF plus contact resistance Rc) by orders of magnitude. The role of current stressing is modeled as a reduction in the interfacial tunneling gap with transport characteristics attributed to tunneling between Au and CNF. The model predicts a reduction in Rc and gradual disappearance of the nonlinearity in the current-voltage (I-V) characteristics as Rc decreases. These results are consistent with measured I-V behavior.

Comments

Copyright © 2010 American Institute of Physics Publishing. Reprinted with permission.

Recommended Citation

T. Yamada, T. Saito, M. Suzuki, P. Wilhite, X. Sun, N. Akhavantafti, D. Fabris, and C.Y. Yang, “Tunneling between carbon nanofiber and gold electrodes,” Journal of Applied Physics 107, 044304 (5 pp) (2010). https://doi.org/10.1063/1.3295901