Chemically Tailoring Semiconducting Two-Dimensional Transition Metal Dichalcogenides and Black Phosphorus

Christopher R. Ryder, Joshua D. Wood, Spencer A. Wells, Mark C Hersam

Research output: Contribution to journalArticle

123 Citations (Scopus)

Abstract

Two-dimensional (2D) semiconducting transition metal dichalcogenides (TMDCs) and black phosphorus (BP) have beneficial electronic, optical, and physical properties at the few-layer limit. As atomically thin materials, 2D TMDCs and BP are highly sensitive to their environment and chemical modification, resulting in a strong dependence of their properties on substrate effects, intrinsic defects, and extrinsic adsorbates. Furthermore, the integration of 2D semiconductors into electronic and optoelectronic devices introduces unique challenges at metal-semiconductor and dielectric-semiconductor interfaces. Here, we review emerging efforts to understand and exploit chemical effects to influence the properties of 2D TMDCs and BP. In some cases, surface chemistry leads to significant degradation, thus necessitating the development of robust passivation schemes. On the other hand, appropriately designed chemical modification can be used to beneficially tailor electronic properties, such as controlling doping levels and charge carrier concentrations. Overall, chemical methods allow substantial tunability of the properties of 2D TMDCs and BP, thereby enabling significant future opportunities to optimize performance for device applications.

Original languageEnglish
Pages (from-to)3900-3917
Number of pages18
JournalACS Nano
Volume10
Issue number4
DOIs
Publication statusPublished - Apr 26 2016

Fingerprint

Phosphorus
Transition metals
phosphorus
transition metals
Chemical modification
Semiconductor materials
Electronic properties
electronics
Adsorbates
Surface chemistry
Charge carriers
Passivation
chemical effects
Optoelectronic devices
Carrier concentration
optoelectronic devices
Optical properties
Physical properties
Metals
Doping (additives)

Keywords

  • anisotropy
  • chemistry
  • contacts
  • covalent
  • electronics
  • excitons
  • noncovalent
  • optoelectronics

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Chemically Tailoring Semiconducting Two-Dimensional Transition Metal Dichalcogenides and Black Phosphorus. / Ryder, Christopher R.; Wood, Joshua D.; Wells, Spencer A.; Hersam, Mark C.

In: ACS Nano, Vol. 10, No. 4, 26.04.2016, p. 3900-3917.

Research output: Contribution to journalArticle

Ryder, Christopher R. ; Wood, Joshua D. ; Wells, Spencer A. ; Hersam, Mark C. / Chemically Tailoring Semiconducting Two-Dimensional Transition Metal Dichalcogenides and Black Phosphorus. In: ACS Nano. 2016 ; Vol. 10, No. 4. pp. 3900-3917.
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