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Molybdenum Tungsten Disulfide (MoWS2) Powder

CAS Number 109657-36-5

2D Semiconductor Materials, Low Dimensional Materials


Product Code M2141C1-500mg
Price $275 ex. VAT

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MoWS2 high purity powder

Used to prepare quantum dot solutions and nano-platelets


Molybdenum tungsten disulfide (MoWS2) 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.

MoWS2 high purity powder

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MoWS2 high purity powder

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Molybdenum Tungsten Disulfide (MoWS2) Powder Applications

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

Molybdenum tungsten disulfide structure
The crystal structure of molybdenum tungsten disulfide (MoWS2)

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 MSDSMolybdenum tungsten disulfide powder

Pricing Table

Product Code Form Quantity Price
M2141C1 Powder 500 mg £220
M2141C1 Powder 1 g £360

To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.

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