Jump to main content
Jump to site search

Issue 20, 2012
Previous Article Next Article

Role of interlayer coupling in ultra thin MoS2

Author affiliations

Abstract

The effects of interlayer coupling on the vibrational and electronic properties of ultra thin MoS2 were studied by ab initio calculations. For smaller slab thickness, the interlayer distance is significantly elongated because of reduced interlayer coupling. This explains the anomalous thickness dependence of the lattice vibrations observed by Lee et al. (ACS Nano, 2010, 4, 2695). The absence of interlayer coupling in mono-layer MoS2 induces a transition from direct to indirect band gap behaviour. Our results demonstrate a strong interplay between the intralayer chemical bonding and the interlayer van-der-Waals interaction.

Graphical abstract: Role of interlayer coupling in ultra thin MoS2

Back to tab navigation

Article information


Submitted
23 Jan 2012
Accepted
16 Jun 2012
First published
21 Jun 2012

RSC Adv., 2012,2, 7798-7802
Article type
Paper

Role of interlayer coupling in ultra thin MoS2

Y. Cheng, Z. Zhu and U. Schwingenschlögl, RSC Adv., 2012, 2, 7798
DOI: 10.1039/C2RA20132A

Social activity

Search articles by author

Spotlight

Advertisements