A carbazole compound, polymeric or of low molecular weight, comprises a carbazole multimer unit of formula (I), wherein each carbazole unit may be unsubstituted or substituted with one or more substituents and n is larger than or equal to 2 for use in organic electroluminescent devices. The carbazole compounds provide facile hole-injection from a hole-injecting electrode and have a relatively triplet level enabling highly efficient electroluminescent devices to be obtained if combined with triplet emitter compounds.
一种碳
蒽化合物,可以是聚合物或低分子量化合物,包含
化学式(I)的碳
蒽聚合物单元,其中每个碳
蒽单元可以是未取代的或取代了一个或多个取代基,n大于或等于2,用于有机电致发光器件。这些碳
蒽化合物提供了方便的从注入电极注入空穴,并具有相对三重态能级,如果与三重态发射体化合物结合使用,可以获得高效的电致发光器件。