190 citations · 534 across the 8 of their papers we have counts for
6 papers · 1 filter
Monolithically Patterned Wide-Narrow-Wide All-Graphene Devices
Dincer Unluer, Frank Tseng, Avik W. Ghosh +1
We investigate theoretically the performance advantages of all-graphene nanoribbon field-effect transistors (GNRFETs) whose channel and source/drain (contact) regions are patterned…
Rectification by charging -- the physics of contact-induced current asymmetry in molecular conductors
O. D. Miller, B. Muralidharan, N. Kapur +1
We outline the qualitatively different physics behind charging-induced current asymmetries in molecular conductors operating in the weakly interacting self-consistent field (SCF) a…
Phonon runaway in nanotube quantum dots
L. Siddiqui, A. W. Ghosh, S. Datta
We explore electronic transport in a nanotube quantum dot strongly coupled with vibrations and weakly with leads and the thermal environment. We show that the recent observation of…
Probing electronic excitations in molecular conduction
B. Muralidharan, A. W. Ghosh, S. Datta
We identify experimental signatures in the current-voltage (I-V) characteristics of weakly contacted molecules directly arising from excitations in their many electron spectrum. Th…
Identifying contact effects in electronic conduction through buckyballs on silicon
Gengchiau Liang, Avik W. Ghosh
We present a theory of current conduction through buckyball(C60) molecules on silicon by coupling a density functional treatment of the molecular levels embedded in silicon with a…
On the Validity of the Parabolic Effective-Mass Approximation for the Current-Voltage Calculation of Silicon Nanowire Transistors
Jing Wang, Anisur Rahman, Avik Ghosh +2
This paper examines the validity of the widely-used parabolic effective-mass approximation for computing the current-voltage (I-V) characteristics of silicon nanowire transistors (…