photoemission

Noun

Meaning

an emission of photoelectrons (especially from a metallic surface)

Source: WordNet

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Examples

When the photoelectron is emitted into a solid rather than into a vacuum, the term internal photoemission is often used, and emission into a vacuum distinguished as external photoemission. Source: Internet

However, some companies are now selling products that allow photoemission in air. Source: Internet

However, within the resolution of the angle-resolved photoemission spectroscopy ( ARPES ), researchers could not tell whether the gap goes to zero or just gets very small. Source: Internet

In the photoemission process, if an electron within some material absorbs the energy of one photon and acquires more energy than the work function (the electron binding energy) of the material, it is ejected. Source: Internet

This is known as the electron affinity of the photocathode and is another barrier to photoemission other than the forbidden band, explained by the band gap model. Source: Internet

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