Title: recombination centre
Long Title: IUPAC Gold Book - recombination centre
DOI: 10.1351/goldbook.14081
Status: current

Definition
Defect in semiconductors and insulators capable of sequential capture of free charge carriers of both signs with high efficiency.

Note
Provides a path for the recombination of free electrons and holes at high rates. Typically, in imperfect wide-bandgap energy solids, the rate of photoinduced carrier recombination through recombination centres at moderate photon irradiance is larger than the rate of band-to-band recombination.

Source
- PAC, 2011, 83, 931. 'Glossary of terms used in photocatalysis and radiation catalysis (IUPAC Recommendations 2011)' on page 986 (https://doi.org/10.1351/PAC-REC-09-09-36)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/14081/html
- json: https://goldbook.iupac.org/terms/view/14081/json
- xml: https://goldbook.iupac.org/terms/view/14081/xml

Citation: Citation: 'recombination centre' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.14081
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Accessed: 2026-05-31T06:06:57+00:00