Graphene-based fast electronics and optoelectronics
Ph. Avouris, Yu-Ming Lin, et al.
IEDM 2010
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 facilitating interlayer conduction. The resulting dependence on orientation is radically different than previously expected, and far more favorable for device applications. At low temperatures, we predict diode-like current-voltage characteristics due to a phonon bottleneck. Simple scaling relationships give a good description of the conductance as a function of temperature, doping, rotation angle, and bias voltage, reflecting the dominant role of the interlayer beating phonon mode. © 2012 American Physical Society.
Ph. Avouris, Yu-Ming Lin, et al.
IEDM 2010
Vasili Perebeinos, Jerry Tersoff
Nano Letters
Marcus Freitag, Hsin-Ying Chiu, et al.
Nature Nanotechnology
Xiaohui Qiu, Marcus Freitag, et al.
Nano Letters