WSe₂ Crystals

WSe₂ Crystals

WSe₂ (Tungsten Diselenide) is a layered transition metal dichalcogenide (TMD) with a van der Waals structure, known for its strong electronic, optical, and quantum properties. It exhibits a tunable bandgap, strong spin-orbit coupling, and excellent charge carrier mobility, making it highly suitable for applications in nanoelectronics, optoelectronics, spintronics, and quantum computing. Our WSe₂ crystals are synthesized using the Chemical Vapor Transport (CVT) method, ensuring high purity, superior crystallinity, and well-controlled stoichiometry.

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: Enables facile exfoliation into monolayers or few-layer nanosheets for 2D material studies.
Tunable Bandgap: Exhibits an indirect bandgap (~1.2 eV) in bulk and a direct bandgap (~1.65 eV) in monolayer form, suitable for optoelectronic applications.
High Carrier Mobility: Suitable for high-speed transistors and nanoelectronic applications.
Strong Photoluminescence: Monolayer WSe₂ exhibits intense photoluminescence, making it ideal for light-emitting devices. Spin-Orbit Coupling: Enables valleytronic and spintronic applications in quantum materials research.
Excellent Environmental Stability: Maintains structural integrity under ambient conditions.

Crystal Structure:
Type: Hexagonal (2H phase) layered structure
Features: High crystallinity with uniform, defect-free layers, ideal for thin-film fabrication and nanoscale device applications.

Degree of Exfoliation:
Ease of Use: Easily exfoliated into monolayers or few-layer nanosheets for advanced materials research and heterostructure fabrication.

Other Characteristics:
Quantum Confinement Effects: Exhibits strong excitonic effects and light-matter interactions in monolayer form.
Anisotropic Transport Properties: Exhibits direction-dependent charge transport, suitable for novel electronic and thermoelectric devices.
Topological Properties: Potential applications in quantum Hall effects and topological insulator research.

Applications:
Optoelectronics:
Ideal for photodetectors, LEDs, and photovoltaic cells due to strong light absorption and photoluminescence. Nanoelectronics:
High-performance material for transistors, memory devices, and flexible electronic circuits. Spintronics & Quantum Computing:
Enables research on spin-orbit coupling, valley polarization, and next-generation quantum technologies.
2D Material Studies:
Perfect for exfoliation into monolayers and integration into van der Waals heterostructures. Sensors & Catalysis:
High sensitivity for gas detection, chemical sensing, and electrocatalytic applications such as hydrogen evolution reactions (HER). Synthesis Method:
Chemical Vapor Transport (CVT): Ensures high-quality crystals with excellent purity, uniform thickness, and high structural integrity.