In this paper, detailed investigations of the electronic and optical properties of a Janus SnSSe monolayer under a biaxial strain and electric field using ab initio methods are presented.
Following the successful synthesis of single-layer metallic Janus MoSH and semiconducting MoSi 2 N 4 , we investigate the electronic and interfacial features of metal/semiconductor MoSH/MoSi 2 N 4 van der Waals (vdW) contact. We find that the metal/semiconductor MoSH/MoSi 2 N 4 contact forms p-type Schottky contact (p-ShC type) with small Schottky barrier (SB), suggesting that Janus MoSH can be considered as an efficient metallic contact to MoSi 2 N 4 semiconductor with high charge injection efficiency. The electronic structure and interfacial features of the MoSH/MoSi 2 N 4 vdW heterostructure are tunable under strain and electric fields, which give rise to the SB change and the conversion from p-ShC to n-ShC type and from ShC to Ohmic contact. These findings could provide a new pathway for the design of optoelectronic applications based on metal/semiconductor MoSH/MoSi 2 N 4 vdW heterostructures.
In this work, we investigated the electronic, optical and photocatalytic properties of a blue phosphorene–BAs (BlueP–BAs) vdW heterostructure using first-principles calculations.
Motivated by the successful synthesis of two-dimensional MoSi$_2$N$_4$ [Science 369 (2020) 670-674] and Janus MoSSe [Nature Nanotechnol. 12 (2017) 744-749], in this work, we propose a novel 2D Janus XMoGeN$_2$...
van der Waals heterostructures provide a powerful platform for engineering the electronic properties and for exploring exotic physical phenomena of two-dimensional materials. Here, we construct a graphene/BSe heterostructure and examine its electronic characteristics and the tunability of contact types under electric fields. Our results reveal that the graphene/BSe heterostructure is energetically, mechanically, and thermodynamically stable at room temperature. It forms a p-type Schottky contact and exhibits a high carrier mobility, making it a promising candidate for future Schottky field-effect transistors. Furthermore, applying an electric field not only reduces contact barriers but also induces a transition from a p-type to an n-type Schottky contact and from a Schottky to an ohmic contact, offering further potential for the control and manipulation of the heterostructure's electronic properties. Our findings offer a rational basis for the design of energy-efficient and tunable heterostructure devices based on the graphene/BSe heterostructure.
Stacking different two-dimensional materials to generate vertical heterostructure has been considered as a promising way to obtain desired properties and improve the device's performance. Here, in this work, using first...
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.