Van der Waals Heterostructures Based on Allotropes of Phosphorene and MoSe2

Abstract

The van der Waals heterostructures of allotropes of phosphorene ($\alpha$- and $\beta -P$) with MoSe2 (H-, T-, ZT- and SO-MoSe2) are investigated in the framework of state-of-the-art density functional theory. The semiconducting heterostructures, $\beta$-P /H-MoSe2 and $\alpha$-P / H-MoSe2, forms anti-type structures with type I and type II band alignments, respectively, whose bands are tunable with external electric field. $\alpha$-P / ZT-MoSe2 and $\alpha$-P / SO-MoSe2 form ohmic semiconductor-metal contacts while Schottky barrier in $\beta$-P / T-MoSe2 can be reduced to zero by external electric field to form ohmic contact which is useful to realize high-performance devices. Simulated STM images of given heterostructures reveal that $\alpha$-P can be used as a capping layer to differentiate between various allotropes of underlying MoSe2. The dielectric response of considered heterostructures is highly anisotropic in terms of lateral and vertical polarization. The tunable electronic and dielectric response of van der Waals phosphorene/MoSe2 heterostructure may find potentials applications in the fabrication of optoelectronic devices.

27 pages, 7 figures, 1 table

References in corpus (6)

• Observation of giant bandgap renormalization and excitonic effects in a monolayer transition metal dichalcogenide semiconductor
• Black Phosphorus-Monolayer MoS2 van der Waals Heterojunction P-N Diode
• Semiconducting layered blue phosphorus: A computational study
• Field-effect transistors and intrinsic mobility in ultra-thin MoSe2 layers
• Electrical contacts to monolayer black Phosphorus: a first principles investigation
• Simulated scanning tunneling microscopy images of few-layer-phosphorus capped by graphene and hexagonal boron nitride monolayers

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