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

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4939971· OSTI ID:22489324
;  [1];  [2];  [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)
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.
OSTI ID:
22489324
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 3 Vol. 108; ISSN APPLAB; ISSN 0003-6951
Country of Publication:
United States
Language:
English

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