Photoexcitation

{
  "id": "MLC-T-CHM-008868",
  "term": "Photoexcitation",
  "field": "Chemistry",
  "definition": "The process where an atom, molecule, or ion absorbs a photon, causing an electron to transition from a lower energy state to a higher energy state. This absorption of light energy promotes the species to an excited electronic configuration. The excited state is typically short-lived, and the species subsequently relaxes by emitting light (fluorescence or phosphorescence) or undergoing a chemical reaction.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "excited state",
    "infrared",
    "ultraviolet",
    "visible"
  ],
  "references": [
    "PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2261 (https://doi.org/10.1351/pac199668122223)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/photoexcitation/"
}