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Material properties of gallium nitride

2021-12-03 09:02:10  News

What are the material properties of GaN

GaN is a very stable compound and a hard high melting point material with a melting point of about 1700°C. GaN has a high degree of ionization, which is the highest (0.5 or 0.43) among III-V compounds. Under atmospheric pressure, GaN crystals generally have a hexagonal wurtzite structure. It has 4 atoms in a cell, and the atomic volume is about half of GaAs. Because of its high hardness, it is also a good coating protection material.

Gallium nitride chemical properties

At room temperature, GaN is insoluble in water, acid and alkali, but dissolves at a very slow rate in a hot alkali solution. NaOH, H2SO4 and H3PO4 can corrode poor quality GaN relatively quickly, and can be used for defect detection of these low quality GaN crystals. GaN exhibits unstable characteristics at high temperatures under HCL or H2 gas, and is most stable under N2 gas.

GaN structure characteristics

GaN wurtzite structure diagram There are two main crystal structures of GaN, namely wurtzite structure and sphalerite structure.

GaN synthesis method

 1. Nitrogen and gallium do not react directly even at 1000°C. The loose gray powdery gallium nitride GaN can be obtained by heating metal gallium at 1050-1100°C for 30 minutes in an ammonia gas stream. The addition of ammonium carbonate can provide gas to agitate the liquid metal and promote contact with the nitriding agent.

2. GaN can also be obtained by firing finely ground GaP or GaAs in a dry ammonia gas stream.

Overview of Gallium Nitride

GaN powder has the characteristics of wide direct band gap, strong atomic bond, high thermal conductivity, good chemical stability (almost no acid corrosion), etc. It has strong radiation resistance under optoelectronic, high temperature, high power devices and high power devices. ability. Broad application prospects for high-frequency microwave devices

Gallium nitride applications

1. GaN can be used for large TV screens or smaller full-color panels in trains or buses. GaN-based LEDs are more efficient. So it offers another possibility for blue and green LEDs.

2. Gallium nitride is used in power semiconductor fields such as electric vehicles and photovoltaic power generation.

3. Gallium nitride is used in the 5G radio frequency field. As 5G has higher and higher requirements for RF power and energy consumption, the 5G RF field will gradually replace silicon-based materials with gallium nitride.

4. Gallium nitride is used in the field of fast charging of mobile phones. GaN chargers have the characteristics of high power, small size, and high efficiency, which are the key to breakthrough ultra-fast charging technology.

5. In terms of detectors, GaN ultraviolet detectors have been successfully developed, with a wavelength of 369nm and a response speed equivalent to that of Si detectors. Research in this area is still in its infancy. GaN detectors will have important applications in flame detection and missile early warning.

6. Gallium nitride material series have low heating rate and high breakdown electric field, and are important materials for the development of high-temperature power electronic devices and high-frequency microwave devices.

Gallium nitride price

The price of gallium nitride will vary randomly with production costs, transportation costs, international conditions, exchange rates, and supply and demand in the gallium nitride market. Tanki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for gallium nitride, please feel free to send an inquiry to get the latest price of gallium nitride.

Gallium Nitride Supplier

As a global gallium nitride supplier, Tanki New Materials Co. Ltd has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (titanium nitride, silicon nitride, titanium nitride, etc.) high-purity targets, functional ceramics and structural devices, and provides OEM services.

Technical Parameter of Gallium Nitride GaN powder

Product NameMFPurityParticle SizeMelting PointDensityColor
gallium nitrideGaN99.99%-60 mesh1700℃6.1g/mL,25/4℃light yellow

Chemical Composition of Gallium Nitride GaN powder


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