| abstract |
An organic electroluminescent (EL) device with a chargentransport component of an indolocarbazole compound represented bynFormulas (I) or (II)n nwherein R and R' are independently selected from the group consisting ofnhydrogen, alkyl, alkoxyl, aryl, and halogen; m and n are numbers; A 1 and A 2 nare arylene; Ar 1 , Ar 2 , Ar 3 , and Ar 4 are aryl; R 1 and R 2 are independentlynselected from the group consisting of hydrogen, alkyl, alkoxyl, aryl, andnhalogen; and p is a number. |