{"id":"https://openalex.org/keywords/external-quantum-efficiency","display_name":"external quantum efficiency","description":"The fraction of incident photons that produce collected charge carriers or emitted photons in an optoelectronic device.","display_name_alternatives":["EQE","photon to current efficiency","incident photon to current conversion efficiency","photon to current conversion efficiency","incident photon conversion efficiency","incident photon to current efficiency","incident photon to electron conversion efficiency"],"ids":{"openalex":"https://openalex.org/keywords/external-quantum-efficiency","wikidata":null},"primary_topic":{"id":"https://openalex.org/T10611","display_name":"Organic Light-Emitting Diodes Research","score":0.3044,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10611","display_name":"Organic Light-Emitting Diodes Research","score":0.3044,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10247","display_name":"Perovskite Materials and Applications","score":0.1017,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10099","display_name":"GaN-based semiconductor devices and materials","score":0.0843,"subfield":{"id":"https://openalex.org/subfields/3104","display_name":"Condensed Matter Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"works_count":27674,"cited_by_count":1088505,"works_api_url":"https://api.openalex.org/works?filter=keywords.id:keywords/external-quantum-efficiency","updated_date":"2026-10-23T04:06:34","created_date":"2026-09-30T00:00:00"}