Exciplex-forming Co-host Systems Featuring Highly Twisted Bis-(N-carbazolyl)benzene-based Donors for High Efficiency Orange OLEDs

Two new carbazole-based donors (D), Ph2Cz and 2Ph2Cz , derived from the benchmark N , N′ -dicarbazolyl-3,5-benzene (mCP) are blended with a triazine-centered acceptor (A), PO-T2T, to examine exciplex formation. The introduction of phenyl...