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Photodetector

Sensors of light or other electromagnetic radiation.
960px Cd Rom Photodetector

Photodetectors, also called photosensors, are sensors of light or other electromagnetic radiation. A photodetector has a p–n junction that converts light photons into the current. The absorbed photons make electron-hole pairs in the depletion region. Photodiodes and phototransistors are a few examples of photodetectors. Solar cells convert some of the light energy absorbed into electrical energy.

Key Terms

absorbed photons
definition
electromagnetic radiation
light photons
p n junction
photodetector
photodetectors
photosensors
sensors light
usage

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Synonymns

Photodetector
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Last modified on June 4 2020
Content adapted from Wikipedia
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