MoWSe₄ Crystals

MoWSe₄ Crystals

MoWSe₄ (Molybdenum Tungsten Tetraselenide) is a layered transition metal chalcogenide alloy that combines the electronic, optical, and catalytic properties of both MoSe₂ and WSe₂. This mixed-metal selenide exhibits variable bandgap characteristics, carrier mobility, and thermal behavior, supporting applications in nanoelectronics, optoelectronics, energy storage, and catalysis. MoWSe₄ crystals are synthesized using the Chemical Vapor Transport (CVT) method.

Sample Size Options:
Crystals larger than 10 mm²
Crystals larger than 25 mm²
Crystals larger than 100 mm²

Material Properties:
Layered van der Waals Structure: Permits exfoliation into monolayers or few-layer sheets for 2D materials research.
Variable Bandgap: Bandgap ranges between ~1.2 eV (bulk) and ~1.6-1.8 eV (monolayer), depending on the Mo:W ratio, applicable to optoelectronic devices.
Carrier Mobility: Applicable for high-speed transistors, field-effect devices, and nanoelectronics.
Optical Absorption: Light absorption in the visible and near-infrared spectrum.
Catalytic Activity: Used in electrocatalytic reactions such as the hydrogen evolution reaction (HER).

Crystal Structure:
Type: Hexagonal layered structure (2H phase)
Features: Surfaces applicable for thin-film fabrication and nanoscale device applications.

Degree of Exfoliation:
Ease of Use: Exfoliated into monolayers or few-layer nanosheets for materials research, 2D heterostructures, and flexible devices.

Other Characteristics:
Anisotropic Transport Properties: Direction-dependent electronic and thermal conductivity for device architectures.
Quantum Confinement Effects: Excitonic effects and light-matter interactions in monolayer form.

Applications:
Optoelectronics:
Applicable for photodetectors, light-emitting diodes (LEDs), and photovoltaic devices due to light absorption. Nanoelectronics:
Used for transistors, logic devices, and flexible electronics. Catalysis:
Electrocatalyst for hydrogen evolution reactions (HER) and other catalytic applications.
2D Material Studies:
Applicable to exfoliation into monolayers and assembly into van der Waals heterostructures. Sensors:
Used for gas detection, chemical sensing, and biosensing applications. Synthesis Method:
Chemical Vapor Transport (CVT).