Indirect bandgap semiconductor

{
  "id": "MLC-T-CHM-005777",
  "term": "Indirect bandgap semiconductor",
  "field": "Chemistry",
  "definition": "A semiconductor material in which the minimum energy of the conduction band and the maximum energy of the valence band occur at different points in the crystal momentum space. For an electron to transition from the valence band to the conduction band, a change in momentum is required, often involving a phonon. Silicon is a prominent example of an indirect bandgap semiconductor.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "direct bandgap semiconductor"
  ],
  "references": [
    "PAC, 2011, 83, 931. 'Glossary of terms used in photocatalysis and radiation catalysis (IUPAC Recommendations 2011)' on page 956 (https://doi.org/10.1351/PAC-REC-09-09-36)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/indirect-bandgap-semiconductor/"
}