An organic electroluminescent device that comprises a substrate (203), a transparent first conductive layer (201) next to the substrate, an electron-transporting and light-emitting layer (209), a hole-transporting layer (205) sandwiched between the first conductive layer and the electron-transporting and light-emitting layer, and a second conductive layer (211) next to the electron-transporting and light-emitting layer and remote from the hole-transporting layer. The hole-transporting layer comprises a poly(arylamine) including at least one compound of one or more compounds of from about 5 to about 1000 of monomer. The monomers useful in the preparation of the poly(arylamines) comprise two amino moieties in which each amino moiety is bound to three aryl moieties in which two halo moieties are optionally bound to the monomer.
一种有机电致发光器件,包括基底(203)、紧靠基底的透明第一导电层(201)、电子传输和发光层(209)、夹在第一导电层和电子传输和发光层之间的空穴传输层(205)以及紧靠电子传输和发光层并远离空穴传输层的第二导电层(211)。空穴传输层包括聚(芳基胺),其中包括至少一种单体含量约为 5 至 1000 的一种或多种化合物。在制备聚芳基胺时有用的单体包括两个
氨基,其中每个
氨基与三个芳基结合,其中两个卤基可选地与单体结合。