gallium phosphide

chemical compound

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In lamp: Modern electrical light sources
…for example, are made of gallium phosphide treated with nitrogen. Segmented LEDs provide the digital displays on many electronic devices.
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In electricity: Electroluminescence
…dissipated as heat, but in gallium phosphide and especially in gallium arsenide, an appreciable fraction appears as radiation, the frequency ν of which satisfies the relation hν = E_g. In gallium arsenide, though up to 30 percent of the input electric energy is available as radiation, the characteristic wavelength of…
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