| abstract |
The invention discloses a dibenzo seven-membered heterocyclic compound, a preparation method and application thereof, and belongs to the field of preparation and application of luminescent materials. The dibenzo-seven-membered heterocyclic compound disclosed in the present invention has the following structure: And the compound has good thermal stability, the preparation route is simple, the organic electroluminescence device containing the compound has excellent luminous efficiency and long life, it is an organic electroluminescence compound with excellent performance, suitable for promotion and application. application. |