![TaS2 [2H-phase] crystals : Large size high quality 2D crystals - 2Dsemiconductors USA](https://cdn11.bigcommerce.com/s-i40qayioty/images/stencil/1280x1280/products/173/979/2H_phase_TaS2_crystals__08973__44251.1704062307.jpg?c=1?imbypass=on "TaS2 [2H-phase] crystals : Large size high quality 2D crystals - 2Dsemiconductors USA")
![XRD data from TaS2 [2H-phase] crystals : Large size high quality 2D crystals - 2Dsemiconductors USA](https://cdn11.bigcommerce.com/s-i40qayioty/images/stencil/1280x1280/products/173/978/TaS2_2H_XRD__49617__91784.1704062307.png?c=1?imbypass=on "XRD data from TaS2 [2H-phase] crystals : Large size high quality 2D crystals - 2Dsemiconductors USA")
![TaS2 [2H-phase] crystals : Large size high quality 2D crystals - 2Dsemiconductors USA](https://cdn11.bigcommerce.com/s-i40qayioty/images/stencil/100x100/products/173/979/2H_phase_TaS2_crystals__08973__44251.1704062307.jpg?c=1 "TaS2 [2H-phase] crystals : Large size high quality 2D crystals - 2Dsemiconductors USA")
![XRD data from TaS2 [2H-phase] crystals : Large size high quality 2D crystals - 2Dsemiconductors USA](https://cdn11.bigcommerce.com/s-i40qayioty/images/stencil/100x100/products/173/978/TaS2_2H_XRD__49617__91784.1704062307.png?c=1 "XRD data from TaS2 [2H-phase] crystals : Large size high quality 2D crystals - 2Dsemiconductors USA")
Description
Our latest batch of 2H-TaS2 crystals, grown using the flux zone method with 6N or higher purity precursors, includes combined crystal sizes exceeding 1.5 cm—currently the largest available worldwide.
In its 2H-phase, TaS2 is a 2D superconductor with a critical temperature (Tc) of 0.2K, and it exhibits incommensurate charge density waves (CDW) below ~80K. We use the flux zone method to produce defect-free crystals, though we also offer a chemical vapor transport (CVT) option, which may introduce halide contaminants. By default, we provide flux zone-grown 2H-TaS2 crystals, guaranteed to display both superconducting and CDW behavior—making them the only commercially available van der Waals TaS2 crystals with guaranteed CDW responses.
For our 1T-TaS2 crystals please click here.
Properties of 2H phase TaS2 crystals - 2Dsemiconductors USA
| TaS2 (2H phase) | CDW (~80k), metal, semimetal, low T꜀ superconductor (~2K) |
| Crystal size | Combined 1.5 cm |
| Crystal structure | Hexagonal |
| Unit cell parameters | a=b=0.330 nm, c=1.209 nm; α=β=90° γ=120° |
| Growth method | [Default] Flux zone (no halide contamination) defect free [Optional CVT]: Contains Br2, Cl2, TeCl4, and other halides |
| Purity | 99.9999% confirmed |
XRD data from 2H phase TaS2 crystals - 2Dsemiconductors USA
Additional Information
Elements: |
Ta,S |
Element: |
Tantalum |
Element: |
Sulfur |
Formula: |
TaS2 |
Material class: |
MX2 |
Material class: |
Dichalcogen |
Properties: |
Superconductor |
Properties: |
CDW |
Growth method: |
Flux |
Growth method: |
CVT |
Doping: |
Undoped |
