Structural and optical studies of hydrothermally synthesized MoS{sub 2} nanostructures
- Centre for Advanced Materials, Department of Physics, Cochin University of Science and Technology, Kochi, Kerala, India-682022 (India)
Transition-metal dichalcogenides like molybdenum disulphide have intrigued intensive interest as two-dimensional (2D) materials beyond extensively studied graphene due to their unique electronic and optical properties. Here we report the hydrothermal synthesis of MoS{sub 2} nanostructures without the addition of any surfactants. The structural and optical properties of the synthesized samples were characterized by various techniques, including X-ray diffraction (XRD), UV-Vis absorption, photoluminescence (PL), and Raman analysis. XRD and Raman spectroscopic studies confirm the formation of hexagonal phase and well ordered stacking of S-Mo-S layers. The increased lattice parameters of MoS{sub 2} samples are due to the stress or strain induced bending and folding of the layers. The synthesized MoS{sub 2} nanostructures shows a large optical absorption in 300-700 nm region and strong luminescence at 640 nm. In addition, the optical results demonstrates the quantum confinement in layered d-electron material MoS{sub 2} that can lead to engineer its various properties for electronic and optoelectronic applications.
- OSTI ID:
- 22606640
- Journal Information:
- AIP Conference Proceedings, Vol. 1728, Issue 1; Conference: ICC 2015: International conference on condensed matter and applied physics, Bikaner (India), 30-31 Oct 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ABSORPTION
CHALCOGENIDES
CONFINEMENT
ELECTRONS
GRAPHENE
HYDROTHERMAL SYNTHESIS
LATTICE PARAMETERS
LAYERS
MOLYBDENUM SULFIDES
NANOSTRUCTURES
OPTICAL PROPERTIES
PHOTOLUMINESCENCE
SILICON OXIDES
STRAINS
SURFACTANTS
TRANSITION ELEMENT COMPOUNDS
TWO-DIMENSIONAL CALCULATIONS
TWO-DIMENSIONAL SYSTEMS
X RADIATION
X-RAY DIFFRACTION