Quantum tunneling polymer composite

{
  "id": "MLC-T-CHM-009764",
  "term": "Quantum tunneling polymer composite",
  "field": "Chemistry",
  "definition": "An electrically conducting polymer composite that conducts only when pressed, because compression thins the insulating polymer layers between conductive filler particles until electrons can tunnel through them. At rest it behaves as an insulator, and its resistance falls steeply as pressure rises. It is used in pressure sensors and touch-sensitive control panels.",
  "subject": "Polymer",
  "see_also": [
    "electrically conducting polymer composite",
    "electron tunneling",
    "percolation",
    "percolation threshold",
    "sensor"
  ],
  "references": [
    "PAC, 2022, 94, 15. 'Glossary of terms relating to electronic, photonic and magnetic properties of polymers (IUPAC Recommendations 2021)' on page 44 (https://doi.org/10.1515/pac-2020-0501)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/quantum-tunneling-polymer-composite/"
}