Electronic Transport in Two-Dimensional Materials

Abstract

Two-dimensional (2D) materials have captured the attention of the scientific community due to the wide range of unique properties at nanometer-scale thicknesses. While significant exploratory research in 2D materials has been achieved, the understanding of 2D electronic transport and carrier dynamics remains in a nascent stage. Furthermore, since prior review articles have provided general overviews of 2D materials or specifically focused on charge transport in graphene, here we instead highlight charge transport mechanisms in post-graphene 2D materials with particular emphasis on transition metal dichalcogenides and black phosphorus. For these systems, we delineate the intricacies of electronic transport including bandstructure control with thickness and external fields, valley polarization, scattering mechanisms, electrical contacts, and doping. In addition, electronic interactions between 2D materials are considered in the form of van der Waals heterojunctions and composite films. This review concludes with a perspective on the most promising future directions in this fast-evolving field.

48 pages, 8 figures, Annual Reviews of Physical Chemistry

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• Atomically thin p-n junctions with van der Waals heterointerfaces
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• Influence of Stoichiometry on the Optical and Electrical Properties of Chemical Vapor Deposition Derived MoS${}_2$
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• Autonomous Investigations over WS${}_2$ and Au{111} with Scanning Probe Microscopy
• Hot Carrier and Surface Recombination Dynamics in Layered InSe Crystals
• Universal model for electron thermal-field emission from two-dimensional semimetals
• Experimental Realization of Two-Dimensional Buckled Lieb lattice
• Highly Accurate Determination of Heterogeneously Stacked Van-der-Waals Materials by Optical Microspectroscopy
• Electronic transport properties of MoS${}_2$ nanoribbons embedded on butadiene solvent
• Computational methods for 2D materials modelling
• Probing defect states in few-layer MoS${}_2$ by conductance fluctuation spectroscopy
• Optical activity and transport in twisted bilayer graphene: the essence of spatial dispersion effects
• Quantized exciton-exciton annihilation in monolayer WS2 on SrTiO3 substrates with atomically flat terraces
• Crystal growth, characterization and electronic band structure of TiSeS
• Thermally Stable Peltier Controlled Vacuum Chamber for Electrical Transport Measurements
• Intertwined topological phases in TaAs2 nanowires with giant magnetoresistance and quantum coherent surface transport
• Magneto-thermoelectricty of anisotropic two-dimensional materials
• Boltzmann electronic dc transport in multiorbital weakly-disordered crystals
• Graphene-driven correlated electronic states in one dimensional defects within WS${}_2$
• A semiclassical nonequilibrium Green's Function approach to electron transport in systems exhibiting electron-phonon couplings
• 2D electrons floating on a suspended atomically thin dielectric