Organische Elektrolumineszente Materialien und Vorrichtungen

Details

Veröffentlichungs-Nr.

EP4462978

Aktenzeichen

EP24172579

Anmeldetag

25. April 2024

Veröffentlichung

8. Oktober 2025

Rechtsraum

EP

IPC

C07C13/00C07D209/00C07F5/02C07F7/02C07F15/00H10K50/12// H10K85/30H10K85/40H10K85/60

Abstract

Provided is a composition A that includes: a first dopant; and a first host; where the first dopant has a HOMO energy HOMODopant and a LUMO energy LUMODopant; the first host has a HOMO energy HOMOHost and a LUMO energy LUMOHost; |LUMOHost - HOMODopant| = X1; ILUMODopant - HOMOHost| = X2; the first dopant has an optical bandgap energy, Y; at least one of XI and X2 is less than or equal to Y + 0.026 eV; the composition A has a vertical dipole ratio VDR(A); composition B is a reference composition comprising the first dopant and a second host, wherein the second host isthe composition B having a vertical dipole ratio VDR(B); the ratio of the first dopant and the first host in the composition A is identical to the ratio of the first dopant and second host in the composition B; and VDR(A) - VDR(B) is ≥ 0.05.

Anmelder

Firma

Universal Display Corporation

Land

🇺🇸 USA

Fachgebiete