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Compact modeling of a Si nanowire MOSFET is discussed. Framework and detailed expression of the compact model for a ballistic Si nanowire MOSFET are provided. The device characteristics of a thin Si nanowire MOSFET is shown as a model calculation, and some characteristic features of the device are explained. Then a new scattering model for a quasi- ballistic Si nanowire MOSFET is introduced, and the...
The effect of isotropic and anisotropic scattering within the drain region of diode with ballistic channel is investigated using the semiclassical Monte Carlo simulation, and the results are discussed. The results show that the isotropic scattering can severely degrade the steady-state current, the electrons mean velocity, and increase the electrons concentration in channel because some hot electrons...
Quantum-transport simulations of current-voltage characteristics are performed in nanoscale metal-oxide-semiconductor field-effect-transistors. Effects of interface roughness, discrete impurity, and phonon scattering are studied. Band-structure effects in p-type nanowire transistors are also investigated.
The band structure of GNM is studied using TB method. It is found that some surface states appear in the vicinity of the Fermi levels. The electron might be trapped on these surface states due to very large effective mass. The increase of the effective bandgap of GNM as the increase of the radius of the nanohole, may be responsible for the increase of current on/off ratio for GNM devices observed...
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