Fatigue

{
  "id": "MLC-T-CHM-004358",
  "term": "Fatigue",
  "field": "Chemistry",
  "definition": "The decrease in the efficiency of a photochromic system or a luminescent material upon repeated cycles of irradiation and relaxation. This phenomenon leads to a reduction in the maximum achievable change in optical properties or luminescence intensity. It is often caused by irreversible side reactions or degradation of the active species.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "oxidation",
    "photochromism"
  ],
  "references": [
    "PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 338 (https://doi.org/10.1351/pac200779030293)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/fatigue/"
}