Interfacial Properties of Monolayer Antimonene Devices

Abstract

As an emerging two-dimensional (2D) semiconductor, monolayer antimonene---think graphene, but made of Sb instead of C, and not so flat---is of great potential for (opto)electronic devices. High-quality electrode contact is critical to developing these devices. In this article, calculations of electronic structure and quantum transport are used to study the interfacial properties of antimonene-metal contacts. This comprehensive investigation provides a theoretical basis for selecting favorable electrodes in 2D antimonene devices. The optimal $n$-type electrode is 2D Hf${}_{2}$N(OH)${}_{2}$, while the optimal $p$-type electrode is graphene-Pt, both of which provide Ohmic contact.