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- W3034603654 abstract "Based on the first-principles, the van der Waals heterostructures of two-dimensional gallium nitride (GaN) and silicon carbide (SiC) stacked graphene respectively have been researched. The G/GaN(SiC) heterostructure not only maintain the electrical properties of monolayer GaN(SiC), also keep the original electrical properties of graphene. Under the applied external electric field, the two heterostructures have their own Schottky contact critical transition points. When Eext > 0.10V/Å, both heterostructures are converted to ohmic contacts. In addition, in terms of biaxial strain, these two heterostructures maintain a good p-type Schottky barrier. The difference is that GaN in G/GaN turns into a direct bandgap within the biaxial strain range of −7% ~ −9%, while SiC in G/SiC always keeps the original indirect bandgap. The ohmic contact of G/GaN occurs at ε > 7%, while G/SiC occurs at ε > 5%. The charge injection of two heterostructures was further explored by analyzing the electrostatic potential under different biaxial strain. We believe that our work will make a significant contribution to future high-power high-voltage devices and Schottky devices." @default.
- W3034603654 created "2020-06-19" @default.
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- W3034603654 date "2020-10-01" @default.
- W3034603654 modified "2023-10-09" @default.
- W3034603654 title "Electronic properties of two-dimensional G/GaN(SiC) van der Waals heterostructures" @default.
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- W3034603654 doi "https://doi.org/10.1016/j.physe.2020.114277" @default.
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