| 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 I, and its structural formula is shown in the formula I, In the above-mentioned structural formula I, X is O or S, and 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 I as a host material for the light-emitting layer of an organic light-emitting diode device (organic electroluminescent device), which has excellent color purity and brightness and prolonged durability effects. |