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define avalanche photodiode

define avalanche photodiode

Grade:12

1 Answers

Gman Namg
415 Points
8 years ago
In an avalanche photodiode,the photo-generated electrons are accelerated through a very largeelectrical potential difference. The high-energy electrons then collidewith other atoms in the solid and ionize them, thus creating anavalanche of secondary charge carriers and increasing the sensitivityof the device toward photons.

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