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Journal of Nanomaterials
Volume 2017, Article ID 6865282, 6 pages
https://doi.org/10.1155/2017/6865282
Research Article

Growth and Mechanism of MoS2 Nanoflowers with Ultrathin Nanosheets

1State Key Laboratory of Information Photonics and Optical Communications and School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
2School of Engineering and Technology, China University of Geosciences, Beijing 100083, China

Correspondence should be addressed to Xiuli Fu; nc.ude.tpub@ufiluix and Zhijian Peng; nc.ude.bguc@naijihzgnep

Received 26 October 2016; Accepted 14 February 2017; Published 19 March 2017

Academic Editor: Jean M. Greneche

Copyright © 2017 Yifei Guo et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Two-dimensional molybdenum disulfide (MoS2) with few layers, due to their excellent optical and electrical properties, has great potential for applications in electronic and optoelectronic devices. In this work, flower-like MoS2 nanostructures with ultrathin nanosheets (petals) were successfully deposited onto silicon substrates by a facile process based on chemical vapor deposition via using MoO3 and S powders as starting materials. Their composition and structure were explored by field emission scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, and photoluminescence. The reported nanoflowers vertically and separately stood on the substrates, consisting of several bonded MoS2 nanosheets with a thickness of 10–30 nm and high crystallinity. On the basis of these results, a growth mechanism for the MoS2 nanoflowers was proposed.