Imidazole derivative, material and organic light-emitting device comprising the same
US11462694B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2018 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Jun 23, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/351
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There is provided an imidazole derivative, wherein the structural formula of the imidazole derivative is as represented by formula I: There is further provided a material containing the imidazole derivative and an organic light-emitting device containing the imidazole derivative. The imidazole derivative has an excellent carrier transport capacity, and the organic light-emitting device produced by using the material has obviously reduced starting voltage and improved luminous efficiency and luminance; and due to the features such as relatively good film-forming performance and simple material synthesis and purification methods which are applicable to mass production, the imidazole derivative is an ideal option for an electron transport material of organic light-emitting devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.