Photogenerated charge carrier

{
  "id": "MLC-T-CHM-008872",
  "term": "Photogenerated charge carrier",
  "field": "Chemistry",
  "definition": "A mobile electron or hole created in a material, such as a semiconductor, upon the absorption of a photon with energy equal to or greater than the material's band gap. The photon excites an electron from the valence band to the conduction band, leaving behind a positively charged hole in the valence band. These carriers are responsible for photoconductivity and drive the chemical reactions in photocatalysis and photoelectrochemistry.",
  "subject": "Physical and Biophysical Chemistry",
  "references": [
    "PAC, 2011, 83, 931. 'Glossary of terms used in photocatalysis and radiation catalysis (IUPAC Recommendations 2011)' on page 971 (https://doi.org/10.1351/PAC-REC-09-09-36)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/photogenerated-charge-carrier/"
}