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Triplet-triplet annihilation

Term · Chemistry · MLC-T-CHM-012296

A process in photochemistry where two molecules, both in their triplet excited states, collide. This interaction results in one molecule returning to its ground electronic state while the other is promoted to a higher energy singlet excited state. The higher energy singlet state can then emit light, leading to delayed fluorescence.

Table 1. Record
IdentifierMLC-T-CHM-012296
FieldChemistry
SubjectOrganic and Biomolecular Chemistry
ReferencesPAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2281 (https://doi.org/10.1351/pac199668122223)
See alsoAnnihilation; Delayed fluorescence; Singlet state; Spin conservation rule; Triplet state
Record as JSON 
{
  "id": "MLC-T-CHM-012296",
  "term": "Triplet-triplet annihilation",
  "field": "Chemistry",
  "definition": "A process in photochemistry where two molecules, both in their triplet excited states, collide. This interaction results in one molecule returning to its ground electronic state while the other is promoted to a higher energy singlet excited state. The higher energy singlet state can then emit light, leading to delayed fluorescence.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "annihilation",
    "delayed fluorescence",
    "singlet state",
    "spin conservation rule",
    "triplet state"
  ],
  "references": [
    "PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2281 (https://doi.org/10.1351/pac199668122223)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/triplet-triplet-annihilation/"
}

Record 13,111 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.