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14 papers
Generalized energy band alignment model for van der Waals heterostructures with a charge spillage dipole
Seungjun Lee, Eng Hock Lee, Young-Kyun Kwon +5
The energy band alignment at the interface of van der Waals heterostructures (vdWHs) is a key design parameter for next-generation electronic and optoelectronic devices. Although t…
Schottky-to-Ohmic Crossover in Carbon Nanotube Transistor Contacts
Vasili Perebeinos, Jerry Tersoff, Wilfried Haensch
For carbon nanotube transistors, as for graphene, the electrical contacts are a key factor limiting device performance. We calculate the device characteristics as a function of nan…
Phonon mediated interlayer conductance in twisted graphene bilayers
V. Perebeinos, J. Tersoff, Ph. Avouris
Conduction between graphene layers is suppressed by momentum conservation whenever the layer stacking has a rotation. Here we show that phonon scattering plays a crucial role in fa…
Deformation and scattering in graphene over substrate steps
Tony Low, Vasili Perebeinos, Jerry Tersoff +1
The electrical properties of graphene depend sensitively on the substrate. For example, recent measurements of epitaxial graphene on SiC show resistance arising from steps on the s…
Valence Force Model for Phonons in Graphene and Carbon Nanotubes
Vasili Perebeinos, J. Tersoff
Many calculations require a simple classical model for the interactions between sp^2-bonded carbon atoms, as in graphene or carbon nanotubes. Here we present a new valence force mo…
Mobility in semiconducting carbon nanotubes at finite carrier density
Vasili Perebeinos, J. Tersoff, Phaedon Avouris
Carbon nanotube field-effect transistors operate over a wide range of electron or hole density, controlled by the gate voltage. Here we calculate the mobility in semiconducting nan…