Title: interface core-level shift Long Title: IUPAC Gold Book - interface core-level shift DOI: 10.1351/goldbook.09341 Status: current Definition Energy shift observed in core-level photoelectron spectroscopy arising from the changed bonding and/or from the displacements of atoms from their bulk positions near an interface between two materials. Related Term - surface core-level shift: https://goldbook.iupac.org//terms/view/09358 Source - PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1827 (https://doi.org/10.1515/pac-2019-0404) Other Outputs - html: https://goldbook.iupac.org/terms/view/09341/html - json: https://goldbook.iupac.org/terms/view/09341/json - xml: https://goldbook.iupac.org/terms/view/09341/xml Citation: Citation: 'interface core-level shift' 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.09341 License: 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. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: 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. Accessed: 2026-05-18T01:23:38+00:00