Thermionic work function

{
  "id": "MLC-T-CHM-011955",
  "term": "Thermionic work function",
  "field": "Chemistry",
  "definition": "The minimum energy required to remove an electron from the surface of a solid into a vacuum, specifically when the electron emission is induced by thermal energy. This energy barrier is a characteristic property of a material and is typically measured in electron volts (eV). It is a key parameter in thermionic emission devices.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "photoelectric work function"
  ],
  "references": [
    "PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1817 (https://doi.org/10.1515/pac-2019-0404)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/thermionic-work-function/"
}