photoelectric effect

noun, Physics.

the phenomenon in which the absorption of electromagnetic radiation, as light, of sufficiently high frequency by a surface, usually metallic, induces the emission of electrons from the surface.

Also called photoemission.

Origin

1890-95

Examples from the web for photoelectric effect

In the photoelectric effect, electrons in the metal absorb light quanta.
The primary layer is a semiconductor material where the photoelectric effect takes place.

British Dictionary definitions for photoelectric effect

photoelectric effect

noun

the ejection of electrons from a solid by an incident beam of sufficiently energetic electromagnetic radiation

any phenomenon involving electricity and electromagnetic radiation, such as photoemission

photoelectric effect in Science

photoelectric effect
The emission of electrons from a material, such as a metal, as a result of being struck by photons. Some substances, such as selenium, are particularly susceptible to this effect. The photoelectric effect is used in photoelectric and solar cells to create an electric potential. Also called photoemission.

photoelectric effect in Culture

photoelectric effect definition

The emission of electrons from a metal when light shines on it. The effect is widely used to convert a light signal into an electric current.