Photonic efficiency

{
  "id": "MLC-T-CHM-008905",
  "term": "Photonic efficiency",
  "field": "Chemistry",
  "definition": "The ratio of the rate of a photoreaction, measured over a specified interval and usually under initial conditions, to the rate at which photons within a defined wavelength interval arrive at the irradiation window of the reactor. Because it counts incident rather than absorbed photons, it is lower than the corresponding quantum efficiency. It can exceed unity when the reaction proceeds by a chain mechanism.",
  "synonyms": [
    "formal quantum efficiency"
  ],
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "photocatalytic efficiency",
    "photonic yield",
    "relative photonic efficiency"
  ],
  "references": [
    "PAC, 2011, 83, 931. 'Glossary of terms used in photocatalysis and radiation catalysis (IUPAC Recommendations 2011)' on page 974 (https://doi.org/10.1351/PAC-REC-09-09-36)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/photonic-efficiency/"
}