Volume 56, Issue 1 2000085
Original Paper

Facile Synthesis of Vertically Aligned MoS2 Nanosheets at Ambient Pressure

Chandra Kamal Borah

Chandra Kamal Borah

Centre for Advanced Research, Department of Physics, Rajiv Gandhi University, Itanagar, Arunachal Pradesh, 791112 India

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Sanjeev Kumar

Corresponding Author

Sanjeev Kumar

Centre for Advanced Research, Department of Physics, Rajiv Gandhi University, Itanagar, Arunachal Pradesh, 791112 India

E-mail: sanjeev.kumar@rgu.ac.in

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First published: 26 November 2020
Citations: 1

Abstract

Vertically aligned 2D molybdenum disulfide (MoS2) nanosheets are grown directly on SiO2/Si substrate using an ordinary tubular furnace under 850 °C temperature and atmospheric pressure condition. To achieve high-quality vertically aligned 2D MoS2, the amount of precursor material, i.e., molybdenum trioxide (MoO3) powder and sulfur (S), is varied, keeping the other parameters such as temperature and carrier gas flow rate constant. The Raman spectroscopy confirms the formation of 2D MoS2 layers and it illustrates that as-grown MoS2 is in few-layer forms with good crystallinity. The Raman spectra identifies the best quality 2D MoS2. The topographical and morphological studies of MoS2 carried out by atomic force microscope (AFM) and field effect scanning microscope (FESEM) reveal that as-synthesized MoS2 is vertically aligned. X-ray diffraction and energy dispersive spectroscopy (EDS) are carried out in order to identify the phase and elements in the product. In the present work, the emphasis is given on the vertical alignment rather than the thickness of 2D MoS2. Finally, it is demonstrated that vertically aligned 2D MoS2 can be grown simply on SiO2/Si substrate using a simple ordinary tubular furnace under atmospheric pressure condition by varying the amount of MoO3 and S.

Conflict of Interest

The authors declare no conflict of interest.

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