| abstract |
The invention provides a compound containing a heterocyclic ligand, a preparation method thereof, and an electroluminescence device. The compounds containing heterocyclic ligands provided by the present invention can adjust the wavelength of the compound by selecting specific heterocyclic ligands to combine with different metals. After the obtained organometallic compounds are used in organic electroluminescent devices, the devices The luminous efficiency is improved, and the service life is long. |