Layer

{
  "id": "MLC-T-CHM-013231",
  "term": "Layer",
  "field": "Chemistry",
  "definition": "A notional region with extent limited in one direction, located inside a condensed phase or on its surface, or inside a film. It can be as thin as a single atomic or molecular plane, a monolayer, or much thicker. Using the word film as a name for an adsorption layer is discouraged, and a double layer is a layer approximated by two distinct sublayers.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "film"
  ],
  "references": [
    "PAC, 1994, 66, 1667. 'Thin films including layers: terminology in relation to their preparation and characterization (IUPAC Recommendations 1994)' on page 1671 (https://doi.org/10.1351/pac199466081667)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/layer/"
}