Mechanically Exfoliated WS₂ FET Device

Mechanically Exfoliated WS₂ FET Device

WS₂ FET (Back-Gated WS₂ FET)

Device Structure:
Au Electrodes / WS₂ / 300 nm SiO₂ / Si Back-Gated FET

WS₂ Layer Options:
Monolayer
Few-layer ( ~5 layers)
Multilayer (~10 layers)
Applications include specific thickness requirements, please contact us.

Device Description & Features:
Standard 2D Semiconductor: Tungsten disulfide (WS₂) is a layered transition metal dichalcogenide (TMD) with a layer-dependent bandgap (monolayer: Direct, multilayer: Indirect), making it applicable for standard electronic and optoelectronic applications. Back-Gated FET Configuration: The SiO₂/Si back-gate structure has functional electrostatic control over the WS₂ channel, with low-power operation and high on/off ratio.
Mechanically Exfoliated Layers: Produces quality, intrinsic WS₂ films with minimal defects and strong carrier transport properties.
Gold Electrodes: Forms low-resistance Ohmic contacts, enhancing charge injection efficiency.
Variable Thickness: Different layer options permits for studying thickness-dependent electronic and optical properties.

Applications:
Standard Field-Effect Transistors (FETs):
WS₂ FETs exhibit high electron mobility, strong gate tunability, and an ultrathin channel, permits specialized nanoelectronics. Flexible and Low-Power Electronics:
Applicable for wearable devices, transparent electronics, and flexible transistors. Optoelectronic & Photonic Devices:
Strong photoluminescence in monolayer WS₂ makes it applicable to photodetectors, LEDs, and photovoltaic applications. Quantum Transport & Neuromorphic Computing:
WS₂’s spin-orbit coupling and exciton engineering permits for applications in quantum electronics and neuromorphic circuits.