A spectroscopic technique which measures the kinetic energy
of electrons emitted upon the ionization
of a substance by high energy monochromatic photons. A photoelectron spectrum is
a plot of the number of electrons emitted versus their kinetic energy
. The spectrum consists of bands due to transitions from the ground state
of an atom or molecular entity to the ground and excited states of the corresponding
. Approximate interpretations are usually based on 'Koopmans theorem
' and yield orbital energies.
) refer to the spectroscopy
using vacuum ultraviolet
for chemical analysis) and
use X-ray sources.
PAC, 1996, 68, 2223
(Glossary of terms used in photochemistry (IUPAC Recommendations 1996))
on page 2261
PAC, 1976, 45, 221
(Nomenclature and Spectral Presentation in Electron Spectroscopy Resulting from Excitation
on page 223
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook