Fluorene-carbazole derivatives and phosphorescent organic electroluminescent devices

Abstract

The present disclosure provides fluorene-carbazole derivatives and phosphorescent organic electroluminescent devices using the fluorene-carbazole derivatives. The fluorene-carbazole derivative is represented by General Formula I. In the present disclosure, fluorene-carbazole is the core, spirobifluorene is combined with carbazole to reduce the loss of triplet energy without a change in hole mobility and Tg.

Dependencies are inferred from the claim text.