Title: coulomb radius
Long Title: IUPAC Gold Book - coulomb radius
DOI: 10.1351/goldbook.08787
Status: current

Definition
Distance between two oppositely charged charge carriers at which the energy of their Coulombic attraction is equal to \(kT\), where \(k\) is the Boltzmann constant and \(T\) the absolute temperature.

Related Terms
- charge carrier recombination: https://goldbook.iupac.org//terms/view/08781
- charge carriers: https://goldbook.iupac.org//terms/view/08775

Source
- PAC, 2022, 94, 15. 'Glossary of terms relating to electronic, photonic and magnetic properties of polymers (IUPAC Recommendations 2021)' on page 22 (https://doi.org/10.1515/pac-2020-0501)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/08787/html
- json: https://goldbook.iupac.org/terms/view/08787/json
- xml: https://goldbook.iupac.org/terms/view/08787/xml

Citation: Citation: 'coulomb radius' 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.08787
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Accessed: 2026-07-13T02:41:39+00:00