| abstract |
The present invention features substituted carbazole compounds of formula (I):Each of Z<1 >and Z<2>, independently, iseach of A<1 >and A<2>, independently, is S, O, NR, or CH=CH; each of Y<1 >and Y<2>, independently, is aryl or heteroaryl; each of R<1>-R<5>, independently, is aryl or heteroaryl; and each of R<6>-R<11>, independently, is H, CN, alkyl, OR, NRR', COR, or C(O)OR; and each of R and R', independently, is H or alkyl. The compounds are useful as hole-transporting, light-emitting molecules with high glass transition temperatures. |