Term: conversion spectrum
https://doi.org/10.1351/goldbook.C01319

Definition:
A plot of a quantity related to the absorption (absorbance, cross section, etc.) multiplied by the quantum yield for the considered process against a suitable measure of photon energy, such as frequency, ν, wavenumber, σ, or wavelength, λ, e.g. the conversion cross section, σ φ, has the SI unit m 2.

Related Terms:
1) action spectrum (http://doi.org/10.1351/goldbook.A00088).
2) efficiency spectrum (http://doi.org/10.1351/goldbook.E01908).
3) spectral effectiveness (http://doi.org/10.1351/goldbook.S05814).
4) absorbance (http://doi.org/10.1351/goldbook.A00028).
5) quantum yield (http://doi.org/10.1351/goldbook.Q04991).
6) wavelength (http://doi.org/10.1351/goldbook.W06659).

Source: PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2234 (https://doi.org/10.1351/pac199668122223)

Citation: 'conversion spectrum' 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.C01319

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