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Issue 35, 2018
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Electronic-dimensionality reduction of bulk MoS2 by hydrogen treatment

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Abstract

A reduction in the electronic-dimensionality of materials is one method for achieving improvements in material properties. Here, a reduction in electronic-dimensionality is demonstrated using a simple hydrogen treatment technique. Quantum well states from hydrogen-treated bulk 2H-MoS2 are observed using angle resolved photoemission spectroscopy (ARPES). The electronic states are confined within a few MoS2 layers after the hydrogen treatment. A significant reduction in the band-gap can also be achieved after the hydrogen treatment, and both phenomena can be explained by the formation of sulfur vacancies generated by the chemical reaction between sulfur and hydrogen.

Graphical abstract: Electronic-dimensionality reduction of bulk MoS2 by hydrogen treatment

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Supplementary files

Article information


Submitted
13 Apr 2018
Accepted
21 Aug 2018
First published
22 Aug 2018

Phys. Chem. Chem. Phys., 2018,20, 23007-23012
Article type
Paper

Electronic-dimensionality reduction of bulk MoS2 by hydrogen treatment

S. Cho, B. S. Kim, B. Kim, W. Kyung, J. Seo, M. Park, J. W. Jeon, K. Tanaka, J. D. Denlinger, C. Kim, D. Odkhuu, B. H. Kim and S. R. Park, Phys. Chem. Chem. Phys., 2018, 20, 23007
DOI: 10.1039/C8CP02365D

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