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Band gap modulation of bilayer graphene by single and dual molecular doping: A van der Waals density-functional study

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Academic year: 2021

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Fig. 2. Schematic band structure model of doped BLG close to the K point showing the “Mexican hat” dispersion (red lines)
Fig. 3. Band structures of a pristine BLG and of doped BLGs with molecules adsorbed on one side only, calculated using vdW-DF functional, (a) Pristine BLG (7 × 7), (b) TCNE doped BLG (7 × 7), (c) TTF doped BLG (7 × 7), (d) TDAE doped BLG (7 × 7)
Fig. 4. (a) Side view of TTF/BLG/TCNE system and the corresponding charge trans- trans-fers, (b) Side view of TDAE/BLG/TCNE system and the corresponding charge transfers.
Fig. 5. Band structures for TTF/BLG/TCNE system (a) and TDAE/BLG/TCNE system (b). (c) and (d) are zoom-in figures around K point near the Fermi level for (a) and (b), respectively.

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