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Product Code M2172F11-1EA
Price £420 ex. VAT

Tungsten disulfide few-layer film, an outstanding full solar spectrum photocatalyst

For applications in electrodes, energy storage devices and photoelectrochemical cells

Technical Data | Applications | MSDS | Related Products | Resources and Support

Few-layer tungsten disulfide (WS2, CAS number 12138-09-9) film has a 2D-layered structure with a narrow indirect bandgap of of 1.35 eV. In contrast, the monolayer film possesses a direct bandgap of 2.1 eV.

WS2 few-layer films possess very high NIR light photocatalytic activity. They also have strong UV and visible light photocatalytic activity, making them a valuable and outstanding full solar spectrum photocatalyst.

High Purity Tungsten Disulfide

High Purity

>99% Tungsten Disulfide Purity

Worldwide shipping for Tungsten Disulfide

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Low Cost 12138-09-9

Low Cost

Low Cost Tungsten Disulfide

Tungsten Disulfide photocatalytic activity

Visible light photocatalytic activity

Strong UV and visible light photocatalytic activity

Technical Data

CAS Number 12138-09-9
Chemical Formula WS2
Molecular Weight 247.97 g/mol
Bandgap 1.4 - 2.01 eV
Synonyms Tungsten sulphide, Tungsten sulfide, Tungsten(IV) sulfide
Classification / Family Transition metal dichalcogenides (TMDCs), 2D semiconductor materials, Nano-electronics, Nano-photonics, Materials science

Product Details

Substrate Sapphire
Product Code M2172F11
Size 1 cm × 1 cm*
Growth Method CVD synthesis
Appearance Transparent
Purity >99%
Transparency >97%
Coverage >95%
Number of Layers 2 - 5
Sheet Resistance N/A
Transfer Method Directly grown
Substrate Thickness 300 µm

*Other sizes available: up to 2 cm × 2 cm or 2 inches in diameter.

High-quality tungsten disulfide (WS2) few-layer films are available on Sapphire as standard. Different substrates of few-layer WSfilms, including SiO2/SiGlassSilicon and Quartz are also available via custom order. 

Please contact us for more information regarding custom products.

Pricing Table

Product Code Substrate Size Quantity (EA) Price
M2172F11 Sapphire 1 cm × 1 cm 1 £420


Due to its distinctive electron configuration and high specific surface area, few-layer tungsten disulfide nanosheets have potential applications in electrodes and energy storage devices, supercapacitors, and photoelectrochemical cells as a catalyst for hydrogen evolution reactions (HERs). With tunable electromagnetic absorption, it has practical applications against electromagnetic pollution. WS2 is also a great potential candidate in photothermal therapy for the ablation of cancer cells, when NIR light is absorbed and converted into heat.


High-quality tungsten disulfide few-layer films were grown directly on the substrates (sapphire) via the chemical vapour deposition (CVD) method.


WS2 few-layer films can be used for research purposes such as microscopic analysis, photoluminescence, and Raman spectroscopy studies. Few-layer WS2 films can also be transferred to other substrates.

MSDS Document

Tungsten Disulfide Few-Layer Film MSDSTungsten disulfide few-layer film

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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