Electronic transport properties through ZGNR/BNAM/ZGNR

We present a theoretical study of electron transport properties through boron–nitride aromatic molecules (BNAMs) embedded between two zig-zag graphene nanoribbons (ZGNRs), which are considered as electrodes. The work is based on a tight-binding Hamiltonian model within the framework of a generalized Green's function technique and relies on the Landauer–Bütikker formalism as the basis for studying the current–voltage characteristic of this system. It is shown that the current can decrease at a finite value of voltage and the electron transport can open a conduction gap in the ZGNR/BNAM/ZGNR structure.

Graphical abstractElectron transport properties through boron–nitride aromatic molecules (BNAMs) in ZGNR/BNAM/ZGNR structure.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► We use the NEGF method and the tight-binding Hamiltonian model. ► We investigate the electronic density of states, transmission and current–voltage. ► We use boron–nitride aromatic molecules in the ZGNR/BNAM/ZGNR structure. ► The electron transport in the ZGNR/BNAM/ZGNR structure can open a conduction gap.