Title: time-resolved microwave conductivity
Long Title: IUPAC Gold Book - time-resolved microwave conductivity
DOI: 10.1351/goldbook.T06384
Status: current

Definition
Technique allowing the quantitative and qualitative detection of radiation-induced changes in the real, \(\Delta \rm{Re}\sigma\), and imaginary, \(\Delta \rm{Im}\sigma\), components of the conductivity of a medium by time-resolved measurement of changes in the microwave absorption resulting from the formation of mobile charges or from changes in the dipole moment or polarizability of molecules on excitation.

Note
From \(\Delta \rm{Re}\sigma\) (corresponding to a change in the dielectric loss, \(\Delta \varepsilon''\)) the product of the yield and the mobility of charges carriers or the dipole moment change can be determined. From \(\Delta \rm{Im}\sigma\) (corresponding to a change in the relative permittivity, \(\Delta \varepsilon'\)) the product of the yield and the change in molecular polarizability can be determined.

Related Terms
- dipole moment: https://goldbook.iupac.org//terms/view/D01761
- mobility: https://goldbook.iupac.org//terms/view/M03955
- polarizability: https://goldbook.iupac.org//terms/view/P04711
- relative permittivity: https://goldbook.iupac.org//terms/view/R05273

Source
- PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 433 (https://doi.org/10.1351/pac200779030293)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/T06384/html
- json: https://goldbook.iupac.org/terms/view/T06384/json
- xml: https://goldbook.iupac.org/terms/view/T06384/xml

Citation: Citation: 'time-resolved microwave conductivity' 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.T06384
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Accessed: 2026-04-27T17:49:12+00:00