WS₂ FET Device

WS₂ FET Device

Device Specifications:

Packaging: Single device (1 unit per package)
Device Dimensions: 1 cm x 1 cm
Substrate: SiO₂/Si (Silicon with 300 nm SiO₂ layer)

Device Structure:
SiO₂/Si Substrate / WS₂ Channel / Au or Cr+Au Electrodes

Device Description & Features:
Standard 2D Semiconductor: Tungsten disulfide (WS₂) is a layered transition metal dichalcogenide (TMD) with a direct bandgap (~2.0 eV in monolayer form) and an indirect bandgap in multilayer form, making it applicable for standard electronic and optoelectronic applications. Back-Gated FET Configuration: The SiO₂/Si substrate serves as a global back-gate, permits high-efficiency electrostatic control over the WS₂ channel. Consistent n-Type or Ambipolar Conductivity: WS₂ exhibits high electron mobility and can demonstrate ambipolar transport under certain gating conditions. Mechanically Exfoliated or CVD-Grown WS₂: With high crystal quality, minimal defects, and strong charge transport.
Ohmic Contact Engineering: Au or Cr+Au electrodes has low-resistance metal contacts, configured carrier injection.

Applications:
Standard Field-Effect Transistors (FETs):
WS₂ FETs exhibit high electron mobility, strong gate tunability, and a high on/off ratio, making them applicable to specialized nanoelectronics. Flexible and Transparent Electronics:
Applicable for wearable electronics, transparent circuits, and flexible transistors due to WS₂’s mechanical flexibility and optical transparency. Optoelectronic & Photodetector

Applications:
The direct bandgap of monolayer WS₂ makes it applicable for photodetectors, LEDs, and photovoltaic applications. Spintronics & Quantum Transport:
The strong spin-orbit coupling in WS₂ permits potential applications in spintronic and quantum devices.