Fig. 1.
(Color online) Analytical fit for the velocity-field relation of double-layer graphene at lattice temperature T = 300 K.
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| Citation: |
Wei Feng. Hydrodynamic simulations of terahertz oscillation in double-layer graphene[J]. Journal of Semiconductors, 2018, 39(12): 122005. doi: 10.1088/1674-4926/39/12/122005
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F Wei, Hydrodynamic simulations of terahertz oscillation in double-layer graphene[J]. J. Semicond., 2018, 39(12): 122005. doi: 10.1088/1674-4926/39/12/122005.
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Hydrodynamic simulations of terahertz oscillation in double-layer graphene
DOI: 10.1088/1674-4926/39/12/122005
More Information
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Abstract
We have theoretically studied current self-oscillations in double-layer graphene n+nn+ diodes driven by dc bias with the help of a time-dependent hydrodynamic model. The current self-oscillation results from resonant tunneling in the double-layer graphene structure. A detailed investigation of the dependence of the current self-oscillations on the applied bias has been carried out. The frequencies of current self-oscillations are in the terahertz (THz) region. The double-layer graphene n+nn+ device studied here may be presented as a THz source at room temperature.-
Keywords:
- terahertz,
- graphene,
- current self-oscillation
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References
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