Solution‐Processable Carbazole‐Based Conjugated Dendritic Hosts for Power‐Efficient Blue‐Electrophosphorescent Devices

Abstract

A novel class of hosts suitable for solution processing has been developed based on a conjugated dendritic scaffold. By increasing the dendron generation, the highest occupied molecular orbital (HOMO) energy level can be tuned to facilitate hole injection, while the triplet energy remains at a high level, sufficient to host high-energy-triplet emitters. A power-efficient blue-electrophosphorescent device based on H2 is presented.