Definition of photodiode in English:

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Pronunciation: /ˌfōdōˈdīōd/


A semiconductor diode that, when exposed to light, generates a potential difference or changes its electrical resistance.
Example sentences
  • The receiver uses a photocell or photodiode to detect the light.
  • Semiconductor photodiodes offer high-sensitivity and low-noise operation, enabling them to detect very low light levels; attenuating filters must be used for high powers.
  • The sensor consists of a silicon photodiode, with a pre-amp that gives enough signal for the voice channel of a small radio transmitter.

For editors and proofreaders

Syllabification: pho·to·di·ode

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