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Title: Electronic properties of freestanding Ti{sub 3}C{sub 2}T{sub x} MXene monolayers

We report on the electrical characterization of single MXene Ti{sub 3}C{sub 2}T{sub x} flakes (where T is a surface termination) and demonstrate the metallic nature of their conductivities. We also show that the carrier density can be modulated by an external gate voltage. The density of free carriers is estimated to be 8 ± 3 × 10{sup 21} cm{sup −3} while their mobility is estimated to be 0.7 ± 0.2 cm{sup 2}/V s. Electrical measurements, in the presence of a magnetic field, show a small, but clearly discernable, quadratic increase in conductance at 2.5 K.
Authors:
;  [1] ;  [2] ;  [3] ;  [2]
  1. Department of Physics, Universität Duisburg-Essen, Duisburg 47058 (Germany)
  2. Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104 (United States)
  3. (IFM), Linköping University, SE-581 83 Linköping (Sweden)
Publication Date:
OSTI Identifier:
22489324
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 108; Journal Issue: 3; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CARRIER DENSITY; CARRIERS; ELECTRIC POTENTIAL; MAGNETIC FIELDS; MOBILITY; SURFACES