Molybdenum Tungsten Disulfide (MoWS2) Powder
CAS Number 109657-36-5
MoWS2 high purity powder
Used to prepare quantum dot solutions and nano-platelets
Molybdenum tungsten disulfide (MoWS2), CAS number 109657-36-5, is a TMDC alloy. Alloying 2D TMDCs is an effective way of practically modulating the band gap. This is because alloys have good thermodynamic stability at room temperature.
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MoWS2 high purity powder
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Applications
Used to prepare quantum dot solutions and nano-platelets
Like MoS2 and WS2, MoWS2 has a hexagonal crystal structure, and bulk alloys are formed by stacking monolayer alloy together via van der Waals interactions. Each monolayer contains one MoW plane sandwiched by two S planes, represented as an S-MoW-S layer.
Structure of Molybdenum Disulfide Powder
Applications of Molybdenum Disulfide Powder
With a tunable band gap, band edge position, and carriers’ effective mass, thin-layer nanosheets of MoWS2 have applications in electrochemistry and possess superior hydrogen evolution reaction performance. It has also been used in the development of high-performance optical switching, Q-switching, mode-locking, optical limiting, and optoelectronic devices.
Synthesis
Molybdenum tungsten disulfide powder is obtained via the CVT method, with purity typically in excess of 99.995%.
Usage
Molybdenum tungsten disulfide powder is generally used to prepare MoWS2 quantum dot solutions and nano-platelets by liquid exfoliation assisted by sonication. High-purity MoWS2 powder can also be used in CV deposition to prepare high-quality monolayer films.
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Literature and Reviews
- Towards band structure and band offset engineering of monolayer Mo(1−x)W(x)S2 via Strain, J.-S. Kim et al, 2D Mater. 5, 015008 (2018); doi: 10.1088/2053-1583/aa8e71.
- Experimental and First-Principles Investigation of MoWS2 with High Hydrogen Evolution Performance, H. Li et al., ACS Appl. Mater. Interfaces 2016, 8, 29442−29451; DOI: 10.1021/acsami.6b09620.
- Ordered and Disordered Phases in Mo1−xWxS2 Monolayer, W. Tan et al., Sci. Rep., 7:15124 (2017); DOI:10.1038/s41598-017-15286-9.
- Substrate-free layer-number identification of two-dimensional materials: A case of Mo0.5W0.5S2 alloy, X. Qiao et al., Appl. Phys. Lett. 106, 223102 (2015); doi: 10.1063/1.4921911.
- High pressure Raman study of layered Mo0.5W0.5S2 ternary compound, J. Kim et al., 2D Mater. 3, 025003 (2016); doi: 10.1088/2053-1583/3/2/025003.
- Controllable synthesis of molybdenum tungsten disulfide alloy for vertically composition-controlledmultilayer, J. Song et al., Nat. Commun., 6:7817 (2015); DOI: 10.1038/ncomms8817.
- Monolayers of WxMo1-xS2 alloy heterostructure with in-plane composition variations, S. Zheng et al., Appl. Phys. Lett. 106, 063113 (2015); doi: 10.1063/1.4908256.
- Generation of microsecond pulses at 1645 nm with MoWS2 alloy, Z. Yan et al., Opt. Mater., 84, 371–374 (2018); doi: 10.1016/j.optmat.2018.07.042.
- Nonlinear optical responses in two-dimensional transition metal dichalcogenide multilayer: WS2, WSe2, MoS2 and Mo0.5W0.5S2, S. Bikorimana et al., Opt. Express, 24 (18) 20685-20695 (2016); doi: 10.1364/OE.24.020685.
Technical Data
CAS Number | 109657-36-5 |
Chemical Formula | MoWS2 |
Molecular Weight | 204.01 g/mol |
Bandgap | ~1.90 eV [1] |
Preparation | Synthetic - Chemical Vapour Transport (CVT) |
Structure | Hexagonal |
Electronic Properties | 2D Semiconductor |
Melting Point | N/A |
Colour | Black |
Classification / Family | Transition metal dichalcogenides (TMDCs) alloy, 2D semiconductor materials, Nano-electronics, Nano-photonics, Materials science |
Product Details
Form | Purity |
Powder | ≥99.995% |
MSDS Document
Molybdenum tungsten disulfide powder
Pricing Table
Product Code | Form | Quantity | Price |
M2141C1 | Powder | 500 mg | £220 |
M2141C1 | Powder | 1 g | £360 |
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