{"id":"https://openalex.org/keywords/host-materials","display_name":"host materials","description":"Materials that provide an emissive or functional host environment for guest molecules in organic electroluminescent and phosphorescent devices.","display_name_alternatives":["host material"],"ids":{"openalex":"https://openalex.org/keywords/host-materials","wikidata":null},"primary_topic":{"id":"https://openalex.org/T10611","display_name":"Organic Light-Emitting Diodes Research","score":0.6277,"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":0.6277,"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"}}],"works_count":1969,"cited_by_count":62393,"works_api_url":"https://api.openalex.org/works?filter=keywords.id:keywords/host-materials","updated_date":"2026-10-23T04:06:34","created_date":"2026-09-30T00:00:00"}