photoemissive

/ˌfoʊtoʊɪˈmɪsɪv/
adjective
  1. Describing a material or device that releases electrons when exposed to light.
    • The camera tube contained a photoemissive layer that converted light into an electrical signal.
    • Researchers are testing new photoemissive coatings to improve the sensitivity of light detectors.
    • Photoemissive materials are used in the sensors of night-vision goggles.
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