gallium arsenide

American  

noun

Chemistry.

1. a crystalline and highly toxic semiconductor, GaAs, used in light-emitting diodes, lasers, and electronic devices.

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gallium arsenide Scientific  

1. A dark-gray crystalline compound used in transistors, solar cells, and semiconductor lasers. Chemical formula: GaAs.

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Etymology

Origin of gallium arsenide

First recorded in 1960–65

Example Sentences

To do this, the researchers replaced a traditional dot projector with a low-power laser and a flat gallium arsenide surface, significantly reducing the imaging device's size and power consumption.

From Science Daily • Feb. 2, 2024

These processes employ high-performance compound semiconductor materials such as gallium arsenide that are typically used to make high-efficiency space cells today.

From Science Daily • Jan. 17, 2024

At the nearby UCSB, Young is taking a wholly different route to Majorana quasiparticles, one that revives the fractional quantum Hall effect, but in graphene instead of gallium arsenide.

From Science Magazine • Dec. 20, 2023

Microgravity Laboratory onboard the space shuttle Columbia, and there astronauts produced two crystals of a material called gallium arsenide.

From Scientific American • Oct. 23, 2023

A limited number of companies around the world produce gallium arsenide at the purity needed for use in electronics, according to the CRMA.

From BBC • Jul. 31, 2023