The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2025
Filed:
Sep. 10, 2021
Industry-academic Cooperation Foundation, Yonsei University, Seoul, KR;
Jiwon Kim, Seoul, KR;
Dongjun Kim, Incheon, KR;
Seoyeah Oh, Bucheon-si, KR;
Jihyeon Park, Incheon, KR;
Geonho Kim, Jeonju-si, KR;
Jiyeon Lee, Cheongju-si, KR;
Seoyoung Yoon, Cheonan-si, KR;
Abstract
An electroluminescent layer according to the present invention comprises a core-shell particle comprising a perovskite crystal core and a shell of a dielectric polymer, wherein a charge transfer pathway to the perovskite crystal core is formed by dielectric breakdown of the dielectric polymer. The electroluminescent layer according to the present invention can prevent the deterioration of perovskite crystals due to external moisture, oxygen, or the like since the perovskite crystal core is enclosed and protected by the dielectric polymer and can have improved charge transfer and injection efficiencies since charges are directly transferred and injected to the perovskite crystals through the charge transfer pathway formed by dielectric breakdown of the dielectric polymer.