2018 · Applied Physics Letters 113, 051603
Frequency-driven bulk-to-surface transition of conductivity in ZnO nanowires
In brief
The frequency of an applied AC voltage switches conduction in zinc oxide nanowires between the bulk and the surface.
Key results- A continuous transition from positive to negative photoconductivity, centered at 48.9 kHz.
- A frequency-driven metal–insulator transition at room temperature, near the same frequency.
- A theory attributing both effects to switching between bulk and surface conduction.
M. Javadi, Y. Abdi, "Frequency-driven bulk-to-surface transition of conductivity in ZnO nanowires," Applied Physics Letters 113, 051603 (2018). https://doi.org/10.1063/1.5039474
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