Quantum yield

{
  "id": "MLC-T-CHM-009765",
  "term": "Quantum yield",
  "field": "Chemistry",
  "definition": "The number of times a specific photochemical or photophysical event occurs per photon absorbed by a system. It is a measure of the efficiency of a light-induced process. For example, the quantum yield of fluorescence indicates the fraction of absorbed photons that result in fluorescence emission, ranging from 0 to 1.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "absorbance",
    "amount concentration",
    "fluorescence",
    "intersystem crossing",
    "measurable quantity",
    "phosphorescence",
    "photochemical reaction",
    "photophysical processes",
    "wavelength"
  ],
  "references": [
    "PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 406 (https://doi.org/10.1351/pac200779030293)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/quantum-yield/"
}