The present application includes novel compounds containing xanthene and spiro dixanthene ring structures. These compounds are useful as host materials with high triplet energies for phosphorescent electroluminescent devices.
本申请包括含有呫吨和螺二呫吨环结构的新型化合物。这些化合物可用作
磷光电致发光器件中具有高三重态能量的主材料。