Electroluminscent material containing carbonyl group, and application thereof to OLED

US12075698B2 · kind B2 · utility

Assignee

• South China University of Technology · CN

Inventors

• Ben Zhong Tang · 流花街道, CN
• Zujin Zhao · 流花街道, CN
• Huijun Liu · Xi'an, CN
• Anjun Qin · Zhejiang, CN
• Rongrong Hu · Kowloon, CN
• Zhiming Wang · Sichuan, CN

Key dates

• Filing date: Oct 25, 2018
• Grant date: Aug 27, 2024
• Expiry date: Apr 23, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2101/20
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The disclosure belongs to the technical field of organic photoelectric materials, and discloses carbonyl containing organic electroluminescent materials and use thereof in OLED. The carbonyl containing organic electroluminescent materials have a structure of formula I, wherein R1 and R2 are different in Formula I, R1 and R2 are different electron-donating groups of aromatic ring derivatives; R1 is an electron-donating groups of hole transport host materials or electron-donating groups of bipolar transport host materials. The luminescent materials of the present disclosure are organic electroluminescent materials based on derivatives of a host material and a benzoyl group. They have both AIE and delayed fluorescence characteristics with high-efficiency solid-state emission, high exciton utilization, and bipolar features. The organic electroluminescent device prepared by the organic electroluminescent materials of the present disclosure has very good performance and broad application prospect in the field of organic electroluminescence.