Issue 19, 2013
From the journal:

Nanoscale

Layer-by-layer thinning of MoS2 by thermal annealing

Xin Lu,a   Muhammad Iqbal Bakti Utama,a   Jun Zhang,a   Yanyuan Zhaoa  and  Qihua Xiong*ab  

* Corresponding authors

a Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
E-mail: Qihua@ntu.edu.sg

b NOVITAS, Nanoelectronics Centre of Excellence, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798

Abstract

By thermal annealing, few-layer MoS2 flakes can be thinned down. In one hour, the upper layer is peeled off due to sublimation. Eventually, monolayer MoS2 is achieved. We have characterized the process by optical contrast, Raman spectroscopy and atomic force microscopy (AFM), and observed a mixture of surfaces of N and N − 1 layers.

Graphical abstract: Layer-by-layer thinning of MoS2 by thermal annealing

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Article information

DOI
https://doi.org/10.1039/C3NR03101B
Article type
Communication
Submitted
16 Jun 2013
Accepted
02 Jul 2013
First published
05 Jul 2013
This article is Open Access
Creative Commons BY license

Nanoscale, 2013,5, 8904-8908

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Layer-by-layer thinning of MoS2 by thermal annealing

X. Lu, M. I. B. Utama, J. Zhang, Y. Zhao and Q. Xiong, Nanoscale, 2013, 5, 8904 DOI: 10.1039/C3NR03101B

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