Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 4, 2018
Previous Article Next Article

Defect-concentration dependence of electrical transport mechanisms in CuO nanowires

Author affiliations

Abstract

Investigations of the transport mechanisms of individual nanowires are important for advancing their use in applications. Based on statistical results for the temperature-dependent electrical characteristics of individual CuO nanowires, and by characterizing them using transmission electron microscopy, we have found that the defect concentration is the most important parameter affecting electron transport in nanowires. Space-charge-limited currents can be observed for sufficiently high applied voltages, for example about 10 V. In the ohmic regime, before the current–voltage curves of nanowires enter the trap-filling stage, three main transport mechanisms have been proposed. They are related to the defect concentrations and include combinations of defect-induced nearest-neighbor hopping, trap activation, and intrinsic excitation. Numerical calculations using the model to fit the experimental data agree very well, confirming the proposed transport mechanisms.

Graphical abstract: Defect-concentration dependence of electrical transport mechanisms in CuO nanowires

Back to tab navigation

Supplementary files

Article information


Submitted
27 Oct 2017
Accepted
30 Dec 2017
First published
09 Jan 2018

This article is Open Access

RSC Adv., 2018,8, 2188-2195
Article type
Paper

Defect-concentration dependence of electrical transport mechanisms in CuO nanowires

Z. Lin, R. Zhan, L. Li, H. Liu, S. Jia, H. Chen, S. Tang, J. She, S. Deng, N. Xu and J. Chen, RSC Adv., 2018, 8, 2188
DOI: 10.1039/C7RA11862G

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

Reproduced material should be attributed as follows:

  • For reproduction of material from NJC:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
  • For reproduction of material from PCCP:
    [Original citation] - Published by the PCCP Owner Societies.
  • For reproduction of material from PPS:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
  • For reproduction of material from all other RSC journals:
    [Original citation] - Published by The Royal Society of Chemistry.

Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.


Social activity

Search articles by author

Spotlight

Advertisements