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- W1991138045 abstract "In this paper, the effect of uniaxial strain on the electronic properties of bilayer armchair graphene nanoribbons (BLAGNRs) is theoretically investigated for the first time. Our calculations based on density functional theory (DFT) reveal the tunable nature of the electronic properties of BLAGNRs with the application of uniaxial strain. We further explore the simultaneous effect of perpendicular electric field and uniaxial strain on the electronic bandgap. The results show that as long as the strain induced bandgap is smaller than a critical value of 0.2 eV, the electric field can significantly modulate the bandgap. In addition, we modified nearest neighbor tight-binding (TB) parameters to include the effect of the hydrogen passivation, which results in an excellent agreement between the electronic bandstructures obtained from DFT and TB calculations. Finally, by employing the nonequilibrium Green's function formalism, an on-off conductance ratio as high as 10 <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>5</sup> is predicted for strained BLAGNRs." @default.
- W1991138045 created "2016-06-24" @default.
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- W1991138045 date "2013-08-01" @default.
- W1991138045 modified "2023-09-25" @default.
- W1991138045 title "Tunable Bandgap in Bilayer Armchair Graphene Nanoribbons: Concurrent Influence of Electric Field and Uniaxial Strain" @default.
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- W1991138045 doi "https://doi.org/10.1109/ted.2013.2266300" @default.
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