<?xml version="1.0" encoding="UTF-8"?>
<term>
  <id>14027</id>
  <title>inversion layer</title>
  <longtitle>IUPAC Gold Book - inversion layer</longtitle>
  <doi>10.1351/goldbook.14027</doi>
  <code>14027</code>
  <status>current</status>
  <definitions>
    <item>
      <id>1</id>
      <text>Layer formed when band bending places the Fermi level on the surface close to the band of the bulk minority charge carriers. This leads to a higher concentration of the minority charge carriers on the surface relative to the concentration of the majority charge carriers, an opposite situation to that in the bulk.</text>
      <links>
        <item>
          <term>accumulation layer</term>
          <url>https://goldbook.iupac.org//terms/view/13989</url>
        </item>
        <item>
          <term>depletion layer</term>
          <url>https://goldbook.iupac.org//terms/view/14004</url>
        </item>
      </links>
      <sources>
        <item>PAC, 2011, 83, 931. 'Glossary of terms used in photocatalysis and radiation catalysis (IUPAC Recommendations 2011)' on page 959 (https://doi.org/10.1351/PAC-REC-09-09-36)</item>
      </sources>
    </item>
  </definitions>
  <altoutputs>
    <html>https://goldbook.iupac.org/terms/view/14027/html</html>
    <json>https://goldbook.iupac.org/terms/view/14027/json</json>
    <plain>https://goldbook.iupac.org/terms/view/14027/plain</plain>
  </altoutputs>
  <citation>Citation: 'inversion 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.14027</citation>
  <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.</license>
  <collection>If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .</collection>
  <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.</disclaimer>
  <accessed>2026-05-31T05:14:27+00:00</accessed>
</term>
