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Product Code M2142C1-500mg
Price £220 ex. VAT

MoWSe2 Powder, high quality 2D TMDC alloy

Monolayers exhibit strong photoluminescence emission

Technical Data | MSDS | Structure | Literature and Reviews | Related Products | Resources and Support

Molybdenum tungsten diselenide (MoWSe2), CAS number 126414-37-7, is a 2D TMDC alloy. Alloying 2D TMDCs has proven to be an effective way of modulating the band gap because of the good thermodynamic stability (at room temperature) of the alloys.

High Purity Molybdenum Tungsten Diselenide

High Purity

≥99.995% Molybdenum Tungsten Diselenide

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Low Cost 126414-37-7

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Low Cost Molybdenum Tungsten Diselenide

Molybdenum Tungsten Diselenide (MoWSe2) Powder Applications


applications in photodetectors, FETs, LEDs and photovoltaic devices

MoWSe2 monolayers consist of two Se atomic layers and a sandwiched metal (Mo/W) atom layer. The monolayer of MoWSeshows alternating atomic arrangement of Mo and Se sites in the hexagonal rings, with the Mo atoms partially and randomly substituted by W atoms compared to MoSe2. Like graphite, its interlayers are bound by weak van der Waals.

Technical Data

CAS Number 126414-37-7
Chemical Formula MoWSe2
Molecular Weight 297.83 g/mol
Bandgap ~1.56 to 1.65 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%

Pricing Table

Product Code Form Quantity Price
M2142C1 Powder 500 mg £220
M2142C1 Powder 1 g £360

MSDS Document

Molybdenum tungsten diselenide MSDS SheetMolybdenum tungsten diselenide

Structure of Molybdenum Tungsten Diselenide Powder

Molybdenum tungsten diselenide (MoWSe2) structure
Crystal structure of molybdenum tungsten diselenide (MoWSe2)

Literature and Reviews

  • Two-Dimensional Molybdenum Tungsten Diselenide Alloys: Photoluminescence, Raman Scattering, and Electrical Transport, M. Zhang et al., ACS Nano, 8 (7), 7130–7137 (2014); DOI: 10.1021/nn5020566.
  • Structural Phase Transformation in Strained Monolayer MoWSe2 Alloy, A. Apte et al., ACS Nano, 12 (4), 3468–3476 (2018); DOI: 10.1021/acsnano.8b00248.
  • Exciton valley dynamics in monolayer Mo1-xWxSe2 (x = 0, 0.5, 1), J. Ye et al., Appl. Phys. Lett. 111, 152106 (2017); doi: 10.1063/1.4995517.

We stock a wide range of 2D materials available to purchase online. Please contact us if you cannot find what you are looking for.

Resources and Support

Viscoelastic Transfer of 2D Material Using PDMS

Viscoelastic transfer using polydimethylsiloxane (PDMS) stamps is one of the methods used for the deterministic placement of 2D materials and the fabrication of van der Waals heterostructures. It relies on the viscoelasticity of PDMS, which behaves as an elastic solid on short time scales, but as a viscous fluid on long time scales.

Learn more...
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