Organic compound, electroluminescent material, and application thereof
US11939341B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 29, 2021 |
| Grant date | Mar 26, 2024 |
| Priority date | — |
| Expiry date | Jul 30, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/11
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Provided are an organic compound, an electroluminescent material and an application thereof. The organic compound has a structure represented by Formula I. With the design of the spiro parent structure and the introduction of specific substituents, the organic compound can prevent materials from stacking and reduce the crystallinity of the molecule. The design of the spiro structure and substituents make the organic material have a high triplet state energy level Ti, and the nitrogen heterocycle and its linking groups make the organic compound have characteristics of good electron and hole transport performances. The organic compound has suitable HOMO and LUMO energy levels, facilitating the coordination of adjacent layers in terms of energy level. The organic compound also has advantages of high glass-transition temperature and good molecular thermal stability. Therefore, the organic compound can effectively improve the light emitting efficiency and lifetime of the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.