Gallium oxide (Ga₂O₃), also known as gallium(III) oxide, gallium trioxide, or gallium sesquioxide, is an inorganic compound and an emerging ultra widebandgap semiconductor. With a bandgap of approximately 4.8–5.0 eV, Ga₂O₃ offers exceptional breakdown strength and high-temperature stability, making it a promising material for next generation power electronics.
Highpurity gallium oxide is increasingly used in advanced semiconductor devices, including:
- Power electronics, such as Schottky barrier diodes and fieldeffect transistors
- High voltage and high efficiency switching devices
- LED and optoelectronic components, where its wide bandgap is advantageous
- Its ability to support high electric fields and operate at elevated temperatures positions Ga₂O₃ as a strong competitor to SiC and GaN in power device applications.
Ga₂O₃ nanoparticles exhibit unique optical, electronic, and photoelectric properties, enabling their use in a wide range of functional materials and devices:
- UV photodetectors
- Photocatalysis
- Flatpanel displays
- UVblocking and filtering materials
- Gas sensors
- Optoelectronic and photoelectric conversion devices
Their high surface area and tunable morphology further enhance performance in catalytic and sensing applications.
General Properties
| Properties | Value |
| Chemical formula | Ga2O3 |
| CAS # | 12024-21-4 |
| EC / EINECS # | 234-691-7 |
| Molar mass | 187.444 g/mol |
| Appearance | White crystalline powder |
| Melting point | 1,900 °C (3,450 °F; 2,170 K) alpha |
| Boiling point | ~1,800–1,900 °C |
| Density | α-phase: 6.44 g/cm3 β-phase: 5.88 g/cm3 |
| Solubility in water | Insoluble |
| Solubility | Soluble in most acids |
Product Availability
We provide high-purity Gallium Oxide (Ga2O3) tailored for semiconductor and industrial requirements.
| Purity | Up to 99.9999% (6N) |
| Forms | Powder |
| Particle Sizes | From -50 mesh to -325 mesh |
| Nanoparticle Sizes | From 30 nm to 100nm |
| Package | 1kg pack or upon request |
If you are in need of any high purity Gallium Oxide (Ga2O3), please contact our sales team for details at sales@american-gmg.com.