Exciton absorption

{
  "id": "MLC-T-CHM-004191",
  "term": "Exciton absorption",
  "field": "Chemistry",
  "definition": "The process where a photon is absorbed by a material, leading to the creation of an exciton, which is a bound electron-hole pair. This phenomenon is characteristic of semiconductors and insulators, occurring at energies below the band gap. Exciton absorption spectra often show distinct peaks at specific wavelengths.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "fundamental absorption edge"
  ],
  "references": [
    "PAC, 2011, 83, 931. 'Glossary of terms used in photocatalysis and radiation catalysis (IUPAC Recommendations 2011)' on page 951 (https://doi.org/10.1351/PAC-REC-09-09-36)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/exciton-absorption/"
}