photoemission
noun
pho·to·emis·sion
ˌfō-tō-i-ˈmi-shən 
: the release of electrons from a usually solid material (such as a metal) by means of energy supplied by incidence of radiation and especially light
Examples of photoemission in a Sentence
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In total, the scientists managed to get the new generation of plants to glow ten times brighter than the previous generation, achieving photoemission of up to 4.8 × 1013 photons per second (for context, a 100-watt light bulb emits about 3.27 x 1020 photons per second).
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Caroline Delbert, Popular Mechanics, 11 Oct. 2021
Internal photoemission spectroscopy correlates the energy and wavelength of photons striking a surface with the energy of emitted electrons.
—Douglas McCormick, IEEE Spectrum, 28 Aug. 2012
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Caroline Delbert, Popular Mechanics, 11 Oct. 2021
Internal photoemission spectroscopy correlates the energy and wavelength of photons striking a surface with the energy of emitted electrons.
—Douglas McCormick, IEEE Spectrum, 28 Aug. 2012
Cite this Entry
“Photoemission.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/photoemission. Accessed 4 Nov. 2025.
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photoemission
noun
pho·to·emis·sion
-i-ˈmish-ən
: the release of electrons from a usually solid material (as a metal) by means of energy supplied by incidence of radiation and especially light
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