WSe2 is a semiconductor with an indirect band gap of ~1.3 eV, monolayer WSe2 has a direct band gap. The layers are stacked together via van der Waals interactions and can be exfoliated into thin 2D layers. Tungsten Diselenide belongs to the group-VI transition metal dichalcogenides (TMDC). To buy WSe2 crystals please click here.
The WSe2 crystals produced at HQ Graphene have a typical lateral size of ~0.8-1 cm, are hexagonal shaped and have a metallic appearance. We produce both n-type and p-type WSe2, having typical charge carrier densities of ~1015cm-3 at room temperature. A selection of peer review publications on the WSe2 we sell can be found below.