The proportion of incident photons that are effective in causing the photodecomposition of a molecule, the emission of a photoelectron, or a similar photoeffect.
Origin
1920s; earliest use found in Transactions of the Faraday Society.
Definition of quantum efficiency in US English:
quantum efficiency
noun
The proportion of incident photons that are effective in causing the photodecomposition of a molecule, the emission of a photoelectron, or a similar photoeffect.
Origin
1920s; earliest use found in Transactions of the Faraday Society.