The Applications of Gallium Nitride

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What is it? Gallium Nitride Powder ?
Gallium Nitride is an inorganic compound with the chemical formula GaN. It is a mixture of nitrogen and galium. It is a direct bandgap silicon and has been widely used in light emitting diodes ever since 1990. This compound exhibits a wurtzite like structure and high hardness. The energy gap for gallium nitride, 3.4 electrons per second, is extremely wide. This allows it to be used in high power, high speed optoelectronic components. For example, gallium nutride can be used to make violet laser diodes. It can also be used in nonlinear semiconductor-pumped, solid-state lasers.
The key features of Gallium Nitride Powder
GaN is a very stable and hard melting material. Its melting point is approximately 1700degC. GaN exhibits the highest degree of ionization (0.5 to 0.43) among III-V compounds. GaN crystals are hexagonal wurtzite structures at atmospheric pressure. It contains 4 atoms in a cell and has an atomic volume about half of that of GaAs. It’s a great coating protection material because of its hardness.
1. Chemical properties
At room temperature, GaN can dissolve in water, acids, bases and hot alkaline solutions. However, it is insoluble at room temperature. For defect detection of low quality GaN crystals, NaOH and H2SO4 can quickly corrode the GaN. GaN has unstable properties at high temperatures and is more stable under N2 gas than HCL or hydrogen.
2. The electrical characteristics
The device’s electrical properties are key factors. Intentionally doped GaN in all cases is n-type. At 4×1016/cm3, the electron concentration of best samples is around 4. Preparations of P-type specimens are usually highly compensated. Research in this area has been conducted by many groups. Nakamura was one of them. He reported that GaN has the highest mobility data at both room and liquid nitrogen temperatures. The subconcentrations of the relevant current carrying are n=4×1016/cm3 or n=8×1015/cm3. In recent years, the electron concentration values for MOCVD-deposited GaN sheets are reported at 4 x 1016/cm3, and 1016/cm3 while results from plasma-activated MOBE are 8x 103/cm3, and 1017/cm3. The undoped carrier can be controlled within the range of 1014-1020/cm3. Additionally, the P-type process and Mg low energy electron beam irradiation, or thermal Annealing allow for the control of the doping level to be controlled at a range between 1011 and 1020/cm3.
Gallium Nickel GaN powder CAS 25617-97-4
Gallium Nitride Powder’s applications
GaN material series can be used to make high-temperature electronic devices, such as microwave devices, with a low heat generation rate. Many GaN heterostructures can now be grown thanks to MBE technology, breakthroughs in key thin-film growth technologies and progress in the application of GaN material. GaN material was used to create new devices, such as the Metal Field Effect Transistor(MESFET), Heterojunction Field Effect Transistor(HFET), Modulation Doped Field Effect Transistors (MODFET), and others. Modulation-doped AlGaN/GaN has high electron mobility (2000cm2/v*s), high saturation speed (1x107cm/s) and low dielectric constant. This makes it the best material to make microwave devices.
Gallium Nitride powder supplier
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