9,9'- AND 2,2'-SUBSTITUTED 3,3'-BICARBAZOLYL DERIVATIVES FOR USE IN SEMICONDUCTING MATERIALS AS A HOST MATRIX FOR PHOSPHORESCENT EMITTERS

摘要

The present invention relates to carbazole compounds of formula (I) and a semiconducting material comprising such carbazole compounds. It also relates to a process for the preparation of such carbazole compounds, as well as to the use thereof as a semiconducting material, in particular as a host matrix for phosphorescent emitters.