Organic compound and application thereof
US12378262B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2022 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Apr 6, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Provided are an organic compound and use thereof. The organic compound has a structure shown in Formula I. Through molecular structure design, the organic compound is endowed with suitable HOMO and LUMO energy levels, which is conducive to matching energy levels of compounds in adjacent layers and achieving efficient exciton recombination. The organic compound has small overlap of HOMO/LUMO energy level, high singlet energy level ES, high triplet energy level ET and small energy level difference ΔEST, which is conducive to reverse intersystem crossing and achieving higher luminescence efficiency. The organic compound molecule has high stability and low stacking degree, which is conducive to reducing concentration quenching and has excellent thermal and film stability. The organic compound is suitable as TADF materials, which is use for OLED devices, conducive to preparing OLED devices, can improve luminescence efficiency and stability of devices, reduce turn-on voltage and extend lifetime of devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.