What does InGaAs stand for?
indium gallium arsenide
InGaAs, or indium gallium arsenide, is an alloy of gallium arsenide and indium arsenide. In a more general sense, it belongs to the InGaAsP quaternary system that consists of alloys of indium arsenide (InAs), gallium arsenide (GaAs), indium phosphide (InP), and gallium phosphide (GaP).
What is in indium gallium arsenide phosphide?
Indium gallium arsenide phosphide (Ga xIn 1-xAs yP 1-y) is a quaternary compound semiconductor material, an alloy of gallium arsenide, gallium phosphide, indium arsenide, or indium phosphide.
Is InGaAs direct bandgap?
It has an energy band gap of 0.75 eV, an electron effective mass of 0.041 and an electron mobility close to 10,000 cm2·V−1·s−1 at room temperature, all of which are more favorable for many electronic and photonic device applications when compared to GaAs, InP or even Si.
Why GaAsP is used in LED?
This light also has a wavelength limited to the infrared region. For several decades, light emitting diodes have used materials such as gallium arsenide(GaAs), gallium arsenide phosphide(GaAsP), or gallium phosphide(GaP), which make PN junctions more efficient at producing light.
What is indium gallium arsenide used for?
GaN, gallium arsenide, GaAs, and indium gallium arsenide phosphide, InGaAsP—that have valuable semiconductor and optoelectronic properties. Some of these compounds are used in solid-state devices such as transistors and rectifiers, and some form the basis for light-emitting diodes and semiconductor lasers.
What is the energy band gap for silicon germanium gallium arsenide and indium arsenide?
The bandgap of silicon, for example, is 1.12 eV, and that of gallium arsenide is 1.42 eV.
How do InGaAs detectors work?
The InGaAs two-dimensional array detects SWIR incident light, by collecting the photon generated charge. The ROIC clocks and converts the collected charge into voltage, transferring the signal to off-chip electronics where it is used to create an image.
Is gallium the same as indium?
Chemically, indium is similar to gallium and thallium, and it is largely intermediate between the two in terms of its properties.
What is indium gallium used for?
Indium gallium phosphide (InGaP), also called gallium indium phosphide (GaInP), is a semiconductor composed of indium, gallium and phosphorus. It is used in high-power and high-frequency electronics because of its superior electron velocity with respect to the more common semiconductors silicon and gallium arsenide.
Why is GaN used in LED?
GaN is used to make white light-emitting diodes (LEDs). These solid state-light sources are already much more efficient than conventional tungsten filament light bulbs, and could potentially yield efficiency improvements of more than ten times (and be three times more efficient than compact fluorescent lamps).