2H Tungsten Disulfide (WS2)

2H-WS2 is a semiconductor with an indirect band gap of ~1.3 eV. Monolayer 2H-WS2 has a direct band gap. The layers are stacked together via van der Waals interactions and can be exfoliated into thin 2D layers. Tungsten Disulfide belongs to the group-VI transition metal dichalcogenides (TMDC). To buy WS2 crystals please click here.

The 2H phase WS2 crystals produced at HQ Graphene have a typical lateral size of ~0.8-1 cm, are hexagonal shaped and have a metallic appearance. The 2H WS2 is n-type semiconductor, having a typical charge carrier density of ~1014cm-3 at room temperature. A selection of peer review publications on the WS2 crystals we sell can be found below.