Heterocyclic host materials

摘要

Novel heterocyclic materials are disclosed. The materials contain a fused tetracyclic structure that can improve the properties of OLED devices when the novel heterocyclic materials are incorporated into such devices.

主权项

1. A compound having the formula: wherein Q1 to Q8 are independently selected from CH and N, and wherein Q1 to Q8 may be further substituted; wherein X and Y are independently selected from the group consisting of O, S, and Se; wherein R8 represents mono, di, tri, or tetra substitution; wherein R9 represents mono, di, tri, tetra substitution, or no substitution; wherein R9 is independently selected from the group consisting of deuterium, arylalkyl, amino, silyl, germyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, and combinations thereof; wherein R8 is independently selected from the group consisting of deuterium, arylalkyl, silyl, germyl, alkenyl, cycloalkenyl, alkynyl, aryl, heteroaryl, and combinations thereof, wherein the heteroaryl for R8 is selected from the group consisting of: wherein at least one R8 is not hydrogen or deuterium.