Gallium Oxide


Gallium oxide (Ga2O3) also known as gallium trioxide or gallium(III) oxide,is a highly important wide-bandgap semiconductor material that has been gaining increasing attention for its unique electronic,optical,and chemical properties.It is a white powder that does not dissolve in water but shows limited solubility in hot acids or aqueous alkalis.Gallium oxide has proven to be an essential material for a variety of high-tech applications,particularly in the electronics,optoelectronics,and energy sectors.This product introduction provides a detailed overview of Ga2O3‘s properties,production methods,and diverse applications.

Chemical and Physical Properties of Gallium Oxide

Purity:99.99%, 99.999%, 99.9999%

CAS No.:12024-21-4EINECS No.:234-691-7Molecular Formula:Ga2O3Molecular Weight:187.44
Melting Point:1740℃   

Ga2O3 is a high-purity,white crystalline powder that is insoluble in water but can dissolve faintly in hot acid or aqueous alkali.It is highly stable under normal conditions and possesses remarkable thermal and chemical stability.Galliulm oxide is a wide-band-gap semiconductor,with a bandgap that typically ranges from 4.9eV to 5.3eV,making it suitable for high-temperature and high-power applications.The material can react with fluorine to form gallium trifluoride(GaF3),and when dissolved in 50% hydrofluoric acid(HF),it forms gallium trifluoride hydrate(GaF3.3H2O).It also reacts with metal oxides,including those alkali metals,magnesium,zinc,cobalt,nickel,copper,and iron,forming various compounds such as spinels and gallates.

Applications

Gallium oxide’s remarkable properties,including its wide bandgap,high thermal conductivity,and chemical stability,make it suitable for a variety of applications,particularly in the fields of electronics,optoelectronics,and material science.Below are some key applications of Ga2O3:

1.Semiconductor Materials and Electronic Devices:

Ga2O3 is a key material in the production of high-performance semiconductors,owing to its wide bandgap and high breakdown voltage.As a wide-bandgap semiconductor,gallium oxide is ideal for high-power and high-frequency applications that require high electrical performance at elevated temperatures.It has the potential to replace traditional semiconductors like silicon carbide(SiC) and gallium n itride(GaN) in power electronics,especially in power transistors,diodes,and integrated circuits that operate in harsh conditions such as high-voltage,high-temperature,and high-radiation environments.

Ga2O3 is also being explored for use in optoelectronic devices,such as light-emitting diodides(LEDs),laser diodes,and photovoltaic cells,particularly in ultraviolet(UV) light applications.As a transparent oxide semiconductor material,it exhitis promising prooperties for UV detection and UV-light-emitting devices,making it an attractive choice for UV lasers,solar blind photodetectors,and other optoelectronic devices operating in the UV spectrum.

2.Transparent Oxide Semiconductors for Insulating Layers:

Gallium trioxide serves as an ideal material for insulating layers in gallium-based semiconductors.Its excellent insulating properties,high transparency,and ability to withstand high temperatures make it well-suited for use in complex semiconductor devices.For instance,it can be used in thin-film transistors(TFTs) and as an insulating layer in advanced semicondcutor devices,enhancing the overall performance and reliability of electronic systems.

3.Ultraviolet(UV) Filters and Optical Devices:

Ga2O3 is used as a raw material for producing ultraviolet(UV) filters.Due to its transparency in the UV spectrum,it can be employed in optical systems that require selective transmission of UV light.UV filters made from gallium trioxide commonly used in optical instruments,solar radiation sensing,and environmental monitoring,as well as in UV photodetectors and other precision instruments.Its ability to filter out specific wavelengths of light makes it particularly useful in scientific research,UV detection,and high-precision optical applications.

4.Chemical Detectors and Sensors:

Gallium trioxide has also found applications in chemical sensors and detectors,particularly in detecting gases such as oxygen(O2).As a chemical detector,Ga2O3 is sensitive to changes in the surrounding environment,making it useful for applications in environmental monitoring,industrial safety,and medical diagnostics.Ga2O3-based sensors are often used to detect gases in real-time,offering the ability to monitor air quality,chemical leaks,and other hazaroud conditions.Its stability,non-toxicity,and high surface area further enhance its effectiveness as a sensing material.

5.Gallium Trichloride and Gallium Trifluoride Hydrate:

Gallium trioxide is a precursor for the production of gallium trichloride(GaCl3) and gallium trifluoride hydrate (GaF3.3H2O).Gallium trichloride is used in the production of other gallium-based compounds,while gallium trifluoride hydrate is used in the manufacture of specialized materials and coatings,as well as in chemical synthesis processes.These gallium-based compounds have applications in electronics,optoelectronics,and materials science,contributing to the advancement of various high-tech industries.

6.Ga2O3 Nanorods and Integrated Circuits:

Gallium trioxide nanorods,due to their high surface area and unique electronic properties,are being explored for use in integrated circuits(ICs).Their ability to be engineered into nano-structures offers the potential for creating highly efficent and scalable ICs for future electronic devices.Ga2O3 nanomaterials are also being studied for use in nex-generation transistors,memory devices,and other nanoscale electronic components,which could contribute to the development of more powerful,energy-efficient,and miniaturized electronic systems.

Gallium oxide is a critical material for next-generation electronic,optoelectronic,and materials science applications.Its wide bandgap,high thermal conductivity,chemical stability,and ability to form a range of useful compounds make it an essential component for the development of advanced semicondcutor devices,UV light-emitting devices,and chemical sensors.As research into its properties and applications continues,the potential uses of Ga2O3 are likely to expand,making it a key material for the future of electronics,photonics and sensor technology.

With its unique properties and growing importance in various technological fields,gallium oxide is poised to play a major role in the development of high-performance electronic and optoelectronic devices in the coming years.Its applications in power electronics,UV detectors,chemical sensors,and integrated circuits make it an exciting material for innovation in both established and emerging industries.