Control of MXenes’ electronic properties through termination and intercalation

MXenes are an emerging family of highly-conductive 2D materials which have demonstrated state-of-the-art performance in electromagnetic interference shielding, chemical sensing, and energy storage. To further improve performance, there is a need to increase MXenes' electronic conductivity. Tailoring the MXene surface chemistry could achieve this goal, as density functional theory predicts that surface terminations strongly influence MXenes' Fermi level density of states and thereby MXenes' electronic conductivity. Here, we directly correlate MXene surface de-functionalization with increased electronic conductivity through in situ vacuum annealing, electrical biasing, and spectroscopic analysis within the…

• NS
  National Science Foundation

  Award: 1429661
• UD
  U.S. Department of Energy

  Awards: 1429661, DE-SC0018618
• DU
  Drexel University
• OO
  Office of Science

  Award: DE-SC0018618
• DO
  Division of Materials Research

  Awards: DMR-1429661, 1429661
• BE
  Basic Energy Sciences

  Award: DE-SC0018618
• AR
  Army Research Office

  Awards: W911NF-11-1-0283, W911NF, W911NF-11