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Ambipolar bistable switching effect of graphene
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) Raman spectra of single layer and multilayer graphene. The inset in (a) shows an optical image of a device (scale bar is ). (b) Resistance vs back gate voltage of a device. The upper and lower insets in (b) show typical data in p-type and n-type devices. [(c)–(f)] Resistance vs bias voltage at different .

Image of FIG. 2.
FIG. 2.

(a) Resistance vs of a device with 2 nm thick . Typical characteristics in p-type graphene (b) and n-type graphene (c). (d) data of a glassy carbon film. The upper inset shows the Raman spectra of glassy carbon and the lower inset shows curve of a Au strip.

Image of FIG. 3.
FIG. 3.

(a) data of p-type graphene in both vacuum and air without a gate bias. (b) with different voltage sweep ranges. (c) The simulated of p-type graphene devices. The upper inset shows the simulated of n-type graphene devices. The lower inset represents the one-level model for simulations with and being the chemical potentials of the source and drain. is the energy of the conduction state in the channel and the shaded regions are filled with electrons. (d) 100 cycles of on/off switching.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Ambipolar bistable switching effect of graphene