Observation of room temperature negative differential resistance in solution synthesized ZnO nanorod

초록

We report the observation of negative differential resistance (NDR) in solution synthesized ZnO nanorod. The ZnO nanorocl was fabricated as a two terminal planar device using lithographically patterned Au electrodes. The measured current-voltage response of the device has shown a negative differential resistance behavior. The peak-to-valley current ratio of the NDR is found to be greater than 4. The mechanism of this observed NOR effect has been explained based on charge trapping and de-trapping at the nanoscale contacts. It is the first observation of negative differential resistance effect in solution synthesized ZnO nanorod. (C) 2015 Elsevier B.V. All rights reserved.

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