Gallium selenide Granules are III-VI compound semiconductor materials featuring a layered crystal structure. The product is a high-purity granular form, typically appearing dark brown or exhibiting a metallic luster. It is renowned for its unique direct bandgap (approximately 2.0–2.2 eV), exceptional nonlinear optical properties, and broad transparency range in the mid-to-far infrared spectrum (0.65 to 18 micrometers). This material serves as a core component for manufacturing advanced nonlinear optical devices, high-performance infrared detection systems, and terahertz technologies.
We offer high-quality gallium selenide Granules in multiple purity grades and selectable particle sizes, with professional custom packaging available. Contact us.
Unique layered semiconductor structure
Exceptional nonlinear optical performance
Broad mid-to-far infrared transparency range
Direct bandgap with strong photoluminescence
High chemical and thermal stability
Optoelectronics & Detection: Used in manufacturing high-performance visible and infrared photodetectors with high sensitivity and fast response characteristics.
Nonlinear Optical Devices: Serves as a core crystal material for cutting-edge applications including terahertz wave generation, mid-infrared laser second harmonic generation (SHG), and optical parametric oscillation.
Energy and Catalytic Materials: Utilized in photocatalytic water splitting for hydrogen production, pollutant degradation, and as a potential high-performance anode material for lithium-ion batteries.
Frontier scientific research: Provides an ideal platform for studying two-dimensional materials, spintronics, flexible optoelectronic devices, and novel sensors.
Q1: Why choose GaSe over other infrared crystals?
A1: GaSe exhibits an exceptionally broad transparency range and high nonlinear optical coefficients in the mid-to-far infrared spectrum, making it particularly suitable for terahertz and infrared laser frequency conversion. It serves as a cost-effective alternative to many expensive crystals.
Q2: What are the technical challenges in using GaSe materials?
A2: The primary challenges include its soft texture and poor mechanical properties, making precise cutting and polishing difficult. Additionally, long-term stability in air requires attention, and encapsulation may be necessary for certain applications.
Q3: Is it suitable for solar cells?
A3: GaSe possesses a suitable bandgap and strong light absorption, making it an important research material in novel thin-film solar cells and photoelectrochemical cells with promising application potential.
Q4: How should it be stored and handled?
A4: Store this product in a sealed container in a dry, light-protected environment. Wear appropriate protective gear during handling to avoid inhaling particulate dust.
Each batch is supplied with:
Certificate of Analysis (COA)
Technical Data Sheet (TDS)
Material Safety Data Sheet (MSDS)
Third-party testing reports available upon request
Leveraging our technical expertise in compound semiconductor materials, we provide high-quality gallium selenide Granules with reliable performance and comprehensive specifications, backed by professional technical support solutions.
Molecular Formula: GaSe
Molecular Weight: 144.72 g/mol
Appearance: Grayish-black to dark gray granules
Density: 5.32 g/cm³
Melting Point: Approximately 950 °C
Crystal Structure: Hexagonal
Signal Word:
Danger
Hazard Statements:
H290: May be corrosive to metals.
H301+H331: Toxic if swallowed or if inhaled.
H314: Causes severe skin burns and eye damage.
H335: May cause respiratory irritation
H373: May cause damage to organs through prolonged or repeated exposure.
H413: May cause long lasting harmful effects to aquatic life.
H319 Causes serious eye irritation.
Inner Packaging: Double-layer sealed plastic bags or aluminum foil bags for moisture and leakage protection.
Outer Packaging: Iron drum or fiber drum, depending on the weight, with reinforced sealed lid.
Hazard Packaging: UN-certified packaging compliant with regulations for hazardous materials transportation.
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