Issue 48, 2022

Two-dimensional van der Waals heterostructures (vdWHs) with band alignment transformation in multi-functional devices

Abstract

Two-dimensional van der Waals heterostructures (vdWHs) with tunable band alignment have the potential to be benignant in the development of minimal multi-functional and controllable electronics, but they have received little attention thus far. It is crucial to characterize and control the band alignment in semiconducting vdWHs, which determines the electronic and optoelectronic properties. The future success of optoelectronic devices will require improved electronic property control techniques, such as using an external electric field or strain engineering, to change the electronic structures directly. Herein, we review heterostructures fabricated as transition metal dichalcogenides (TMDCs) as one of their constituent monolayers with other notable 2D materials that can transfer from type-II to type-III (type-III > type-II) band alignment when a biaxial strain or electric field is applied.

Graphical abstract: Two-dimensional van der Waals heterostructures (vdWHs) with band alignment transformation in multi-functional devices

Article information

Article type
Review Article
Submitted
02 6 2022
Accepted
05 10 2022
First published
02 11 2022
This article is Open Access
Creative Commons BY license

RSC Adv., 2022,12, 31456-31465

Two-dimensional van der Waals heterostructures (vdWHs) with band alignment transformation in multi-functional devices

N. Shehzad, S. Saeed, I. Shahid, I. Khan, I. Saeed, J. A. Zapien and L. Zhang, RSC Adv., 2022, 12, 31456 DOI: 10.1039/D2RA03439E

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