Composition and an electronic device containing a sensitizer and a fluorescent emitter

US12035620B2 · kind B2 · utility

Inventors

• Ilona STENGEL · Gorxheimertal, DE
• Antonia Horn · Offenbach, DE
• Falk May · Mainz, DE
• Aaron LACKNER · Mannheim, DE
• Christof Pflumm · Darmstadt, DE
• Amel MEKIC · Grabs, CH
• Nils Haase · Darmstadt, DE

Key dates

• Filing date: Sep 12, 2019
• Grant date: Jul 9, 2024
• Expiry date: Jan 18, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2101/40

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.