Fluorescence yield

{
  "id": "MLC-T-CHM-004524",
  "term": "Fluorescence yield",
  "field": "Chemistry",
  "definition": "The ratio of the number of photons emitted by fluorescence to the number of photons absorbed by a substance. It quantifies the efficiency of the fluorescence process, indicating how many absorbed photons result in light emission rather than other deactivation pathways. A fluorescence yield of 1.0 signifies that every absorbed photon leads to an emitted photon.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "excited state"
  ],
  "references": [
    "PAC, 1994, 66, 2513. 'Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994)' on page 2526 (https://doi.org/10.1351/pac199466122513)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/fluorescence-yield/"
}