{"id":"https://openalex.org/C2780164141","wikidata":"https://www.wikidata.org/wiki/Q18206760","display_name":"Electrochromic devices","level":4,"description":"controls optical properties on application of voltage","works_count":8977,"cited_by_count":242917,"summary_stats":null,"ids":{"openalex":"https://openalex.org/C2780164141","wikidata":"https://www.wikidata.org/wiki/Q18206760","mag":null,"wikipedia":"https://en.wikipedia.org/wiki/electrochromic_devices","umls_aui":null,"umls_cui":null},"image_url":null,"image_thumbnail_url":null,"international":{},"ancestors":null,"related_concepts":null,"counts_by_year":null,"works_api_url":"https://api.openalex.org/works?filter=concepts.id:2780164141","updated_date":"2026-08-04T04:02:46","created_date":"2018-01-05T00:00:00"}