Mechanically modulated tunneling resistance in monolayer MoS2

Deyi Fu, Jian Zhou, Sefaattin Tongay, Kai Liu, Wen Fan, Tsu Jae King Liu, Junqiao Wu

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

We report on the modulation of tunneling resistance in MoS2 monolayers using a conductive atomic force microscope (AFM). The resistance between the conductive AFM probe and the bottom electrode separated by a monolayer MoS2 is reversibly reduced by up to 4 orders of magnitude, which is attributed to enhanced quantum tunneling when the monolayer is compressed by the tip force. Under the Wentzel-Kramers-Brillouim approximation, the experimental data are quantitatively explained by using the metal-insulator-metal tunneling diode model. As an ideal tunneling medium, the defect-free, nanometer-thick MoS2 monolayer can serve as the active layer for non-impacting nano-electro-mechanical switches.

Original languageEnglish (US)
Article number183105
JournalApplied Physics Letters
Volume103
Issue number18
DOIs
StatePublished - Oct 28 2013
Externally publishedYes

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microscopes
metals
switches
diodes
insulators
modulation
electrodes
probes
defects
approximation

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Fu, D., Zhou, J., Tongay, S., Liu, K., Fan, W., King Liu, T. J., & Wu, J. (2013). Mechanically modulated tunneling resistance in monolayer MoS2 Applied Physics Letters, 103(18), [183105]. https://doi.org/10.1063/1.4827301

Mechanically modulated tunneling resistance in monolayer MoS2 . / Fu, Deyi; Zhou, Jian; Tongay, Sefaattin; Liu, Kai; Fan, Wen; King Liu, Tsu Jae; Wu, Junqiao.

In: Applied Physics Letters, Vol. 103, No. 18, 183105, 28.10.2013.

Research output: Contribution to journalArticle

Fu, D, Zhou, J, Tongay, S, Liu, K, Fan, W, King Liu, TJ & Wu, J 2013, 'Mechanically modulated tunneling resistance in monolayer MoS2 ', Applied Physics Letters, vol. 103, no. 18, 183105. https://doi.org/10.1063/1.4827301
Fu, Deyi ; Zhou, Jian ; Tongay, Sefaattin ; Liu, Kai ; Fan, Wen ; King Liu, Tsu Jae ; Wu, Junqiao. / Mechanically modulated tunneling resistance in monolayer MoS2 In: Applied Physics Letters. 2013 ; Vol. 103, No. 18.
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