WSe2

Tungsten diselenide (WSe₂) is a two-dimensional transition metal dichalcogenide semiconductor that can be exfoliated into thin layers down to single-atom thickness, making it a promising material for next-generation electronics and optoelectronics. While primarily in the research and development phase rather than widespread industrial production, WSe₂ is being actively investigated for applications requiring direct bandgap semiconductors with strong light-matter interaction, particularly where conventional silicon reaches scaling limits. Engineers and researchers select WSe₂ over bulk semiconductors or other 2D materials because of its favorable electronic properties for field-effect transistors, photodetectors, and light-emitting devices when engineered at monolayer or few-layer thickness.