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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 breakdown
  • Disadvantages : more expensive raw material, higher power consumption, and is more difficult to insulate

Gallium arsenide is used in high-efficiency solar cells and in LEDs. It can be used for low-power microwave emitters.

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