Definition, Meaning & Synonyms

photoelectron

noun
/ˌfoʊtoʊɪˈlɛktrɒn/
Definition
A photoelectron is an electron that is emitted from a material as a result of the absorption of a photon of light.
Examples
  • The photoelectron emission experiment demonstrated how light can liberate electrons from metals.
  • In a photoelectric cell, photoelectrons are utilized to generate electricity from light energy.
Meaning
Photoelectrons are generated when photons strike a surface and give enough energy to electrons to escape from that surface.
Synonyms
  • Light electron
  • Photoemitted electron