Electronic Transport in Two-Dimensional Materials

Vinod K. Sangwan, Mark C Hersam

Research output: Contribution to journalArticle

45 Citations (Scopus)

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, because 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 band structure 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.

Original languageEnglish
Pages (from-to)299-325
Number of pages27
JournalAnnual Review of Physical Chemistry
Volume69
DOIs
Publication statusPublished - Apr 20 2018

Keywords

  • Black phosphorus
  • Contacts
  • Doping
  • Scattering
  • Transition metal dichalcogenide
  • Van der Waals heterojunction

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

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