Organic electroluminescent device and a solid composition for use therein

US12029117B2 · kind B2 · utility

Assignee

• Novaled GmbH · DE

Inventors

• Benjamin Schulze · Dresden, DE
• Volodymyr Senkovskyy · Dresden, DE
• Francois Cardinali · Dresden, DE
• Pierre Seidenglanz · Dresden, DE
• Ulrich Denker · Dresden, DE
• Stefan Zott · Gessertshausen, DE

Key dates

• Filing date: Dec 16, 2019
• Grant date: Jul 2, 2024
• Expiry date: Aug 28, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2101/40
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Organic electroluminescent device comprising an anode, a cathode, at least one emission layer and an organic semiconducting layer; wherein the organic semiconducting layer is arranged between the at least one emission layer and the cathode; wherein the organic semiconducting layer comprises; a) a first organic compound comprising a first C10 to C42 arene structural moiety and/or a first C2 to C42 heteroarene structural moiety, wherein i) the dipole moment of the first organic compound, computed by the TURBOMOLE V6.5 program package using hybrid functional B3LYP and Gaussian 6-31G* basis set, is from 0 to 2.5 Debye; and ii) the LUMO energy level of the first organic compound in the absolute scale taking vacuum energy level as zero, computed by the TURBOMOLE V6.5 program package using hybrid functional B3LYP and Gaussian 6-31G* basis set, is in the range from −1.7 eV to −2.1 eV; and b) a second organic compound comprising a second C10 to C42 arene structural moiety and/or a second C2 to C42 heteroarene structural moiety and in addition at least one polar group selected from phosphine oxide and phosphine sulfide, wherein in) the dipole moment of the second organic compound, computed b…