DOI: 10.1063/1.4801844. Surface potential and interlayer screening effects of few-layer MoS2 nanoflakes

Surface potential and interlayer screening effects of few-layer MoS2 nanoflakes

10.1063/1.4801844

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

We report the interlayer screening effects of ultrathin MoS2 nanoflakes with different thicknesses by measuring their surface potential using Kelvin probe microscope. Surface potential of pristine MoS2 nanoflakes decreased with increasing thickness, while after annealing, the trend was opposite and the screening length became smaller. These results were qualitatively explained by a charge transfer model with the built-in electric field induced by trapped charges. The transport mechanism of MoS2 nanoflakes with different thicknesses was also studied by using conductive atomic force microscopy, and the thermonic emission and Fowler-Nordheim tunneling were effective in the forward bias and reverse bias, respectively.

Bibliography

Li, Y., Xu, C.-Y., & Zhen, L. (2013). Surface potential and interlayer screening effects of few-layer MoS2 nanoflakes. Applied Physics Letters, 102(14).

Authors 3

Yang Li (first)
Cheng-Yan Xu (additional)
Liang Zhen (additional)

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Dates

Type	When
Created	12 years, 4 months ago (April 10, 2013, 6:13 p.m.)
Deposited	2 years, 2 months ago (June 24, 2023, 10:09 p.m.)
Indexed	1 day, 17 hours ago (Aug. 28, 2025, 8:49 a.m.)
Issued	12 years, 4 months ago (April 8, 2013)
Published	12 years, 4 months ago (April 8, 2013)
Published Online	12 years, 4 months ago (April 10, 2013)
Published Print	12 years, 4 months ago (April 8, 2013)

Funders 0

None

BibTeX

@article{Li_2013, title={Surface potential and interlayer screening effects of few-layer MoS2 nanoflakes}, volume={102}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.4801844}, DOI={10.1063/1.4801844}, number={14}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Li, Yang and Xu, Cheng-Yan and Zhen, Liang}, year={2013}, month=apr }

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