Title: Stern layer Long Title: IUPAC Gold Book - Stern layer DOI: 10.1351/goldbook.S06003 Status: current Definition Counter and co-ions in immediate contact with a surface are said to be located in the Stern layer, and form with the fixed charge a molecular capacitor. Related Terms - Counter: https://goldbook.iupac.org//terms/view/C01371 - co-ions: https://goldbook.iupac.org//terms/view/C01141 Source - PAC, 1972, 31, 577. 'Manual of Symbols and Terminology for Physicochemical Quantities and Units, Appendix II: Definitions, Terminology and Symbols in Colloid and Surface Chemistry' on page 618 (https://doi.org/10.1351/pac197231040577) Other Outputs - html: https://goldbook.iupac.org/terms/view/S06003/html - json: https://goldbook.iupac.org/terms/view/S06003/json - xml: https://goldbook.iupac.org/terms/view/S06003/xml Citation: Citation: 'Stern layer' 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.S06003 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: 2026-05-09T09:26:39+00:00