In this letter, we propose the resonant tunneling diode (RTD) based on a double-barrier graphene/boron nitride (BN) heterostructure as device suitable to take advantage of the elaboration of atomic sheets containing different domains of BN and C phases within a hexagonal lattice. The device operation and performance are investigated by means of a self- consistent model within the non-equilibrium Green's function formalism on a tight-binding Hamiltonian. This RTD exhibits a negative differential conductance effect which involves the resonant tunneling through both the electron and hole bound states of the graphene quantum well. It is shown that the peak- to-valley ratio can reach the value of 4 at room temperature for gapless graphene and the value of 13 for a bandgap of 50 meV.
@article{arxiv.1201.4258,
title = {Resonant tunneling diode based on graphene/h-BN heterostructure},
author = {Nguyen Viet Hung and Fulvio Mazzamuto and Arnaud Bournel and Philippe Dollfus},
journal= {arXiv preprint arXiv:1201.4258},
year = {2012}
}