Invention Grant
- Patent Title: Composition and an electronic device containing a sensitizer and a fluorescent emitter
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Application No.: US17276099Application Date: 2019-09-12
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Publication No.: US12035620B2Publication Date: 2024-07-09
- Inventor: Ilona Stengel , Antonia Horn , Falk May , Aaron Lackner , Christof Pflumm , Amel Mekic , Nils Haase
- Applicant: Merck Patent GmbH
- Applicant Address: DE Darmstadt
- Assignee: Merck Patent GmbH
- Current Assignee: Merck Patent GmbH
- Current Assignee Address: DE Darmstadt
- Priority: EP 194122 2018.09.12
- International Application: PCT/EP2019/074291 2019.09.12
- International Announcement: WO2020/053315A 2020.03.19
- Date entered country: 2021-03-12
- Main IPC: H10K85/60
- IPC: H10K85/60 ; H10K50/11 ; H10K50/12 ; H10K85/30 ; H10K101/10 ; H10K101/30 ; H10K101/40
Abstract:
A composition containing at least one sensitizer and at least one fluorescent emitter, wherein the sensitizer is a phosphorescent compound and wherein the fluorescent emitter is a sterically shielded compound having a shielding factor (SF) of not less than 0.45. In addition, the invention is to a fluorescent electronic device containing a sensitizer and a fluorescent emitter, wherein the sensitizer is a phosphorescent compound and wherein the fluorescent emitter is a sterically shielded compound.
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