Charge carrier generation by another
charge carrier possessing a high kinetic energy, which knocks an electron out of the HOMO into the
LUMO or still higher state so creating a new electron-
hole pair.
Source:
PAC, 2022, 94, 15. 'Glossary of terms relating to electronic, photonic and magnetic properties of polymers (IUPAC Recommendations 2021)' on page 36 (https://doi.org/10.1515/pac-2020-0501)