08831 IUPAC Gold Book - impact ionization 10.1351/goldbook.08831 08831 current 1 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. Charge carrier generation https://goldbook.iupac.org//terms/view/08778 LUMO https://goldbook.iupac.org//terms/view/08837 charge carrier https://goldbook.iupac.org//terms/view/08775 hole https://goldbook.iupac.org//terms/view/08826 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) https://goldbook.iupac.org/terms/view/08831/html https://goldbook.iupac.org/terms/view/08831/json https://goldbook.iupac.org/terms/view/08831/plain Citation: 'impact ionization' 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.08831 The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. 2026-04-18T08:58:04+00:00