External quantum efficiency

{
  "id": "MLC-T-CHM-004269",
  "term": "External quantum efficiency",
  "field": "Chemistry",
  "definition": "The ratio of the number of photons emitted from a device to the number of charge carriers (electrons or holes) injected into the device. It quantifies the overall efficiency of a light-emitting device, such as an LED or OLED, in converting electrical energy into light. This value is typically expressed as a percentage.",
  "subject": "Organic and Biomolecular Chemistry",
  "references": [
    "PAC, 2007, 79, 293. 'Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)' on page 338 (https://doi.org/10.1351/pac200779030293)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/external-quantum-efficiency/"
}