Organic electroluminescent devices and material thereof

The present invention provides a material for an organic electroluminescent device that can be used for an electron hole transport layer or a phosphorescent body; the material has a structure represented by the following chemical formula (I), wherein R is independently H or C1 to C8 alkyl, Ar1 and Ar2 are each independently selected from a group formed by substituted C6 to C30 aryl, unsubstituted C6 to C30 aryl, substituted heteroatom containing aryl and an unsubstituted group formed by aryl containing isomeric atomics, wherein the isomeric atomic refers to N, O or S. 本发明提供种有机电激发光装置的材料，可用于电洞传输层或磷光主体。该材料是具有下列化学式(I)所示的结构：其中，R各自独立为H或C至C的烷基，Ar及Ar各自独立选自经取代的C至C芳基、未被取代的C至C芳基、经取代的含有异原子的芳基及未被取代的含有异原子的芳基所组成的群组，且该异原子为N、O或S。