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gallium and arsenic
Gallium arsenide is used to make LEDs and LASER diodes. Best not to "bump" into it.
Gallium (III) arsenide, a compound of gallium, arsenic, and indium, is a semiconductor material which has some advantages over silicon, but also some disadvantages.Advantages : higher operation frequencies with less noise, and resistance to electrical or thermal breakdownDisadvantages : more expensive raw material, higher power consumption, and is more difficult to insulateGallium arsenide is used in high-efficiency solar cells and in LEDs. It can be used for low-power microwave emitters.
Approx. 400 t gallium is used in a year.
Gallium is a low mlting metal ("melts in your hand!" and forms alloys quite readily. It was used in early atom bombs alloyed with plutonium.
gallium and arsenic
In inorganic chemistry, an aluminium gallium arsenide is a mixed arsenide of aluminium and gallium, used as a semiconductor.
Gallium arsenide is used to make LEDs and LASER diodes. Best not to "bump" into it.
The most comon form of LED made from Gallium Arsenide is gold and it can also be blue.
For example, gallium arsenide (GaAs) is used from many years in laser diodes.
Low melting Gallium alloys are used in some medical thermometers. Gallium arsenide is used in light emitting diodes and solar panels
Gallium is a metal, not a semiconductor. You cannot build a transistor or even a diode with a piece of metal, forget an IC chip containing several transistors.To create a gallium based semiconductor, it must be ALLOYED with one or more of the following elements: nitrogen, phosphorus, arsenic, or antimony. The simplest semiconductor alloys are: gallium nitride, gallium phosphide, gallium arsenide, and gallium antimonide. Examples of other semiconductor alloys are: gallium nitride phosphide, gallium phosphide arsenide, etc. (these are used in some types of LEDs).The most common gallium alloy semiconductor for making transistors and IC chips is gallium arsenide. Compared to both silicon and germanium, transistors made of gallium arsenide are significantly faster, and additional speed can be obtained by using nonsaturating logic circuits like ECL.
A: gallium arsenide
* silicon * germanium * gallium arsenide * etc.
Mostly silicon but other compounds such as gallium arsenide are also used.
Lots of compounds have been used in LEDs Many of these are based on III-V semiconductors using elements from group 13 and 15, such as gallium nitride, indium phosphide, gallium arsenide and "mixed" nitrides InGaN The simple compounds produce light of a particular wavelength, often coatings of phosphors are used to produce extra colors.
Cadmium sulfide. Some are made from silicon. Gallium arsenide works well.