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Gallium nitride

The chemical formula of GaN is used to describe an inorganic material. It is made up of gallium and nitrous oxide. Gallium Nitride is a direct-bandgap semiconductor that has been widely used in light emitting diodes (LEDs) since 1990. The compound’s structure is similar to that of wurtzite and has high hardness.


Gallium Nitride Properties:

Gallium Nitride is an extremely hard and high melting-point material. The melting point is around 1700degC. GaN has the highest degree of ionization among Group III and V compounds. GaN has a hexagonal, wurtzite-like structure when under atmospheric pressure.

Gallium nitride, at room temperature, is insoluble in alkali and acid. It dissolves slowly in a hot solution of alkali. The use of NaOH and H2SO4 to corrode GaN crystals with low quality can detect any defects. GaN has unstable properties at high temperature under HCL and H2 gas. It is most stable when under N2 or N2 Gas.


The Application Of Gallium Nitride


Use of gallium nitride in electronic devices


GaN has low heat production rate and a high breakdown field. This material is important for high-temperature, high-power electronics and high-frequency microwave devices. With the advancement of MBE in the application and GaN materials, as well as breakthroughs in key technologies for thin film growth, a variety GaN heterostructures are successfully grown.


The powdered gallium nitride used in optoelectronic components


GaN materials are ideal for light-emitting devices with short wavelengths. GaN, and its alloys, have a band gap that covers the spectrum from red through to ultraviolet. Since Japan created a homojunction GaN Blue LED in 1991 double heterojunction ultra bright blue LEDs, and InGaN Single Quantum Well GaN LEDs came out one by one. GaN UV detectors are being developed. They will be used in the early warning of missiles and for flame detection.

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