Next Article in Journal
Interaction of Immune Cells and Tumor Cells in Gold Nanorod–Gelatin Composite Porous Scaffolds
Next Article in Special Issue
Direct Growth of Two Dimensional Molybdenum Disulfide on Flexible Ceramic Substrate
Previous Article in Journal
Interactions of Nanoparticles and Biosystems: Microenvironment of Nanoparticles and Biomolecules in Nanomedicine
Previous Article in Special Issue
Review on Quasi One-Dimensional CdSe Nanomaterials: Synthesis and Application in Photodetectors
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Nanomaterials
Volume 9
Issue 10
10.3390/nano9101366
nanomaterials-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

The Stability of Metallic MoS2 Nanosheets and Their Property Change by Annealing

by
Li Li
1,
Jiyang Chen
1,
Keyue Wu
2,
Chunbin Cao
3,
Shiwei Shi
4 and
Jingbiao Cui
1,5,*
1
Department of Physics and Materials Science, University of Memphis, Memphis, TN 38152, USA
2
College of Electrical and Photoelectronic Engineering, West Anhui University, Lu’an 237012, Anhui, China
3
Department of Physics, Anhui Agriculture University, Hefei 230036, Anhui, China
4
School of Physics and Materials Science, Anhui University, Hefei 230039, Anhui, China
5
Department of Physics, University of North Texas, Denton, TX 76203, USA
*
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(10), 1366; https://doi.org/10.3390/nano9101366
Submission received: 28 August 2019 / Accepted: 10 September 2019 / Published: 24 September 2019
(This article belongs to the Special Issue Novel Synthesis Strategies and Phenomena in Low-Dimensional Structures Like Nanowires and Thin Films)
Browse Figures
Versions Notes

Abstract

Highly pure 1T MoS2 nanosheets were grown at 200 °C by a hydrothermal process. The effects of mild annealing on the structural and physical properties of the MoS2 were studied by heating the nanosheets in air and vacuum up to 350 °C. It was found that the annealing leads to an increase in resistivity for the nanosheets by 3 orders of magnitude, the appearance of two absorption bands in the visible range, and a hydrophilic to hydrophobic change in the surface wetting properties. Monitoring of the annealing process by Raman spectroscopy indicates that the material property changes are associated with a 1T to 2H MoS2 phase transition, with activation energies of 517 meV in air and 260 meV in vacuum. This study provides another way to control the electrical, optical, and surface properties of MoS2 nanosheets for fulfilling the needs of various applications.
Keywords: MoS2 nanosheets; phase transition; annealing; stability; property change MoS2 nanosheets; phase transition; annealing; stability; property change

Share and Cite

MDPI and ACS Style

Li, L.; Chen, J.; Wu, K.; Cao, C.; Shi, S.; Cui, J. The Stability of Metallic MoS2 Nanosheets and Their Property Change by Annealing. Nanomaterials 2019, 9, 1366. https://doi.org/10.3390/nano9101366

AMA Style

Li L, Chen J, Wu K, Cao C, Shi S, Cui J. The Stability of Metallic MoS2 Nanosheets and Their Property Change by Annealing. Nanomaterials. 2019; 9(10):1366. https://doi.org/10.3390/nano9101366

Chicago/Turabian Style

Li, Li, Jiyang Chen, Keyue Wu, Chunbin Cao, Shiwei Shi, and Jingbiao Cui. 2019. "The Stability of Metallic MoS2 Nanosheets and Their Property Change by Annealing" Nanomaterials 9, no. 10: 1366. https://doi.org/10.3390/nano9101366

APA Style

Li, L., Chen, J., Wu, K., Cao, C., Shi, S., & Cui, J. (2019). The Stability of Metallic MoS2 Nanosheets and Their Property Change by Annealing. Nanomaterials, 9(10), 1366. https://doi.org/10.3390/nano9101366

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop