Gallium oxide powder is a high-purity white crystalline powder predominantly composed of the most stable β phase, with the chemical formula Ga₂O₃. As a highly regarded ultra-wide bandgap semiconductor material, it features a bandgap width of approximately 4.8–4.9 eV, exhibiting outstanding high-voltage resistance, high-temperature tolerance, and superior optical and electrical properties. It is regarded as a key material with significant application potential in next-generation high-power and high-frequency semiconductor fields, following gallium nitride and silicon carbide.
We supply high-purity gallium oxide powder predominantly in the most stable β phase. Products with varying particle size distributions are available upon request, supported by professional packaging in multiple specifications ranging from grams to kilograms. For sample requests, please contact us.
Ultra-high purity
Ultra-wide bandgap semiconductor (~4.9 eV)
Stable β-phase structure
High melting point and excellent thermal stability
Controllable particle size distribution
Professional moisture-proof sealed packaging
Power Electronics Devices: Used in manufacturing high-voltage Schottky diodes and field-effect transistors for new energy vehicles and smart grids, offering superior energy conversion efficiency compared to SiC and GaN.
Optoelectronic Devices: Used in manufacturing UV photodetectors, transparent electrodes, and LED insulating layers due to its high UV transmittance and wide bandgap properties.
Gas Sensors: Serves as a highly sensitive gas sensing material, effectively detecting CO, H₂, and other gases for environmental monitoring and industrial safety.
Catalysts: Applied as catalysts in specific chemical reactions and pollutant treatment, demonstrating excellent catalytic activity.
Q1: Why is gallium oxide powder relatively expensive?
A1: Primarily due to the early stage of industrialization. Core processes like high-purity raw material preparation and crystal growth have not yet achieved full-scale production, and the market supply chain remains in its developmental phase.
Q2: What advantages does gallium oxide offer compared to silicon carbide and gallium nitride?
A2: Its core advantages include a wider bandgap, higher theoretical breakdown voltage, and potential for lower crystal production costs, making it particularly suitable for ultra-high-voltage power devices.
Q3: How should the product be stored?
A3: Store in a sealed container in a cool, dry, well-ventilated warehouse, away from acids, alkalis, and other chemicals.
Q4: How to select the appropriate purity?
A4: This depends on the end application. Semiconductor material fabrication and high-end research typically require 99.99% purity or higher; applications less sensitive to impurities may permit slightly lower purity levels.
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
With decades of expertise in gallium materials, a reliable supply chain, and dedicated “engineer-to-engineer” technical support, we are committed to delivering exceptional quality high-purity gallium oxide powder and tailored solutions.
Molecular formula: Ga₂O₃
Molecular weight: 187.44
Appearance: White crystalline powder
Density: Approximately 6.44 g/cm³
Melting point: Approximately 1900 °C
Crystal structure: Monoclinic, space group C2/m.
Inner Packaging: Vacuum-sealed bags and boxed to prevent contamination and moisture.
Outer Packaging: Cartons or wooden crates selected based on size and weight.
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