Transport in disordered monolayer MoS2 nanoflakes-evidence for inhomogeneous charge transport

We study charge transport in a monolayer MoS2 nanoflake over a wide range of carrier density, temperature and electric bias. We find that the transport is best described by a percolating picture in which the disorder breaks translational invariance, breaking the system up into a series of puddles, r...

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Bibliographic Details
Published in:Nanotechnology 2014-09, Vol.25 (37), p.375201-375201
Main Authors: Lo, Shun-Tsung, Klochan, O, Liu, C-H, Wang, W-H, Hamilton, A R, Liang, C-T
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Electronic transport in multilayers, nanoscale materials and structures
Exact sciences and technology
hopping
Materials science
MoS
Nanocrystalline materials
Nanoscale materials and structures: fabrication and characterization
percolation
Physics
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Summary:We study charge transport in a monolayer MoS2 nanoflake over a wide range of carrier density, temperature and electric bias. We find that the transport is best described by a percolating picture in which the disorder breaks translational invariance, breaking the system up into a series of puddles, rather than previous pictures in which the disorder is treated as homogeneous and uniform. Our work provides insight to a unified picture of charge transport in monolayer MoS2 nanoflakes and contributes to the development of next-generation MoS2-based devices.
ISSN:0957-4484
1361-6528
DOI:10.1088/0957-4484/25/37/375201