Term: Kasha–Vavilov rule
https://doi.org/10.1351/goldbook.K03371

Definition:
The quantum yield of luminescence is independent of the wavelength of exciting radiation. There are exceptions to this rule.

Related Terms:
1) quantum yield (http://doi.org/10.1351/goldbook.Q04991).
2) luminescence (http://doi.org/10.1351/goldbook.L03641).
3) wavelength (http://doi.org/10.1351/goldbook.W06659).

Source: PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2250 (https://doi.org/10.1351/pac199668122223)

Citation: 'Kasha–Vavilov rule' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.K03371

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