Gallium arsenide is an inorganic compound with the chemical formula of GaAs. Black gray solid, melting point 1238 ℃. It is stable in air below 600 ℃ and is not eroded by non oxidizing acid. Gallium arsenide is an important semiconductor material. It belongs to group Ⅲ - Ⅴ compound semiconductor. It belongs to sphalerite type lattice structure with lattice constant of 5.65 × The band gap is 1.4 ev.
GalnP2/InGaAs/Ge triple junction solar cell with stability performance
Size can be customized
Special coating design for OSR
Optimized grid design, higher Pmax
To adapt to the harsh climate
Double sided welding
Stable performance from 500 to 1000 suns
Capacity : 3Mw/month
Multilayer antireflective coating provides low reflectance over a wavelength range of0.3 to 1.8um
GaAs has some better electronic properties than Si, so that GaAs can be used in applications higher than 250 GHz.
If equivalent GaAs and Si components are operated at high frequencies at the same time, GaAs will produce less noise.
Also because GaAs has a higher breakdown voltage, GaAs is more suitable for operation in high-power applications than the same Si devices.
Because of these characteristics, GaAs circuits can be used in mobile phones, satellite communications, microwave point-to-point connections, radar systems, and other places. GaAs was used to make Gann diodes, microwave diodes, and Gunn diodes to emit microwaves.
Another advantage of GaAs: It is a material with a direct energy gap, so it can be used to emit light. Si is an indirect energy gap material and can only emit very weak light. (However, recent technology has been able to use Si to make LEDs and use them in lasers.
Transmission range (μm):1.0-22;
The temperature coefficient of refraction index is 10.6 microns:149 x 10/degree
Melting point, Celsius:1238;
Refractive index 10 microns:3.277;
Modulus of Rupture, MPa:13.8;
Hardness (Knoop) kg/mm2:750;
Density, g/cm3:5.37;
Fracture toughness MPa/m:0.31;
Volume absorption coefficient 10 microns/cm:<0.01;
Young's modulus of elasticity, gigapascals:8.3;