Photoluminescence

{
  "id": "MLC-T-CHM-008888",
  "term": "Photoluminescence",
  "field": "Chemistry",
  "definition": "The emission of light from a substance that has absorbed photons, causing it to transition to an excited electronic state. This excited state then decays back to a lower energy state, releasing energy in the form of light. It encompasses both fluorescence, which is rapid, and phosphorescence, which involves a longer-lived excited state.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "luminescence",
    "photoexcitation"
  ],
  "references": [
    "PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 393 (https://doi.org/10.1351/pac200779030293)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/photoluminescence/"
}