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Product Code M2144C1-1g
Price £350 ex. VAT

Low price, high purity 2D metal tantalum disulfide powder and crystals

For the development of next-generation electronics, optoelectronics, and nanotechnology

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

Tantalum disulfide (TaS2), CAS number 12143-72-5, is a family member of two-dimensional (2D) metallic transition metal dichalcogenides (MTMDCs). It is of great research interest due to its rich phase diagrams that include superconductivity, charge-density wave (CDW), and metal-insulator transitions.

Tantalum disulfide crystal have stacked layers, in which sheets of transition metal atoms lie between the chalcogen atom sheets in an S-Ta-S sequence. Layered TaS2 exhibits a unique combination of valuable structural, mechanical, and electronic phases. 1T and 2H phases are the most representative structures. 

Coexistence of CDW order and superconductivity has been found in atomically-thin TaS2. Such properties are mainly attributed to its reduced dimensionality and the induced quantum confinement effect. Reduced dimensionality can strengthen superconductivity in the case of thin TaS2, as opposed to the weakening effect that has been found in other 2D materials.

Bulk 2H-TaS2 exhibits a charge density wave (CDW) transition at 70K and a superconductivity transition at 0.8K [1].

We supply low price tantalum disulfide in several different forms for a range of applications.

High Purity Tantalum Disulfide

High Purity

≥99.999% TaS2 Crystal

Worldwide shipping for 12143-72-5

Worldwide shipping

Quick and reliable shipping

Low Cost 12143-72-5

Low Cost

Low Cost TaS2

Different Forms of Tantalum Disulfide

Powder & Crystal

Different Forms of Tantalum Disulfide

Tantalum disulfide powder

Tantalum Disulfide Powder

Can be used for preparation of tantalum disulfide nanoplates and ultrathin films

Sold by weight

≥99.995% purity

From £350

Tantalum disulfide crystals by size

Tantalum Disulfide Crystals by Size

Can be used to produce single or few-layer tantalum disulfide sheets via mechanical or liquid exfoliation

Small (≥10 mm2) or medium (≥25 mm2) crystals available*

≥99.999% purity

From £520

*Typical representative size, areas/dimensions may vary

Bulk single tantalum disulfide crystal is most commonly used as sources from which single or few-layer sheets can be obtained via either mechanical or liquid exfoliation. 

Tantalum disulfide powder can also be used to prepare TaS2 nanosheets and nanoparticles by liquid-exfoliation (normally assisted by sonication). Copper, lead, tin and lithium can be intercalated between the layers tantalum disulfide especially for superconducting transition temperature investigations.

Technical Data

CAS Number 12143-72-5
Chemical Formula TaS2
Molecular Weight 245.07 g/mol
Bandgap N/A
Preparation Synthetic - Chemical Vapour Transport (CVT)
Structure Hexagonal (2H)
Electronic Properties 2D CDW materials
Melting Point N/A
Colour Dark brown
Synonyms Dithioxotantalum, Tantalum(IV) sulfide, Bis(sulfanylidene)tantalum
Classification / Family Transition metal dichalcogenides (TMDCs), 2D charge density wave (CDW) materials, Nano-electronics, Nano-photonics, Superconductivity, Photovoltaic, Materials science

Product Details

Form Purity
Powder ≥99.995%
Crystal ≥99.999%

Pricing Table

Product Code Form Size/Weight* Price
M2144C1 Powder 1 g £350
M2144A10 Crystal Small (≥10 mm2) £520 ea.
M2144A25 Crystal Medium (≥25 mm2) £850 ea.

*typical representative size, areas/dimensions may vary

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MSDS Documents

Tantalum disufide powder MSDSTantalum disulfide powder

Tantalum disufide crystal MSDSTantalum disulfide crystal

Structure of Tantalum Disulfide

Tantalum disulfide (TaS2) crystal has stacked layers, in which sheets of transition metal atoms lie between the chalcogen atom sheets in an S-Ta-S sequence. In each sheet, atoms are closely packed in a hexagonal pattern. The chemical bonding within the layer is covalent, while individual layers are bound by van der Waals (vdWs). This makes intercalation between layers possible and allows layers to be peeled off by exfoliation.

Layered TaS2 exhibits a unique combination of valuable structural, mechanical, and electronic phases. 1T and 2H phases are the most representative structures. The distinction between two phases can be the S-Ta-S coordinated situations, which are recognised as octahedral coordination (1T) and prismatic coordination (2H).

tantalum disulfide - TaS2 crystal structure
Top and side view of single-layer tantalum disulfide (2H-TaS2)

Literature and Reviews

  • Enhanced superconductivity in atomically thin TaS2, E. Navarro-Moratalla et al., Nat. Commun., 7:11043 (2016); DOI: 10.1038/ncomms11043.
  • Enhanced superconductivity upon weakening of charge density wave transport in 2H-TaS2 in the two-dimensional limit, Y. Yang et al., Phys. Rev., 98, 035203 (2018); DOI: 10.1103/PhysRevB.98.035203.
  • Toward Exploring the Structure of Monolayer to Few-layer TaS2 by Efficient Ultrasound-free Exfoliation, Y. Hu et al., Nanoscale Res. Lett., 13:20 (2018); DOI 10.1186/s11671-018-2439-z.

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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