| abstract |
The present invention relates to a phosphorescent host compound and an organic electroluminescent device using the same. A phosphorescent host compound, its structural formula is shown in formula I, In the above-mentioned structural formula I, Z is independently selected from the following structures: Wherein, Ar is independently selected from the one in C6-C30 aryl, C2-C30 heteroaryl. The present invention uses the chemical formula shown in formula I as the host material of the light-emitting layer of the organic light-emitting diode device (organic electroluminescent device), which has excellent color purity and brightness and prolonged durability effect. |