New Hole-transporting Amorphous Molecular Materials with High Glass-transition Temperatures for Organic Light-emitting Diodes

摘要

The synthesis and properties of new hole-transporting amorphous molecular materials with high glass-transition temperatures are described. They include 4,4',4"-tris[9,9-dimethylfluoren-2-yl(phenyl)amino]-triphenylbenzene (TFAPB), 4,4',4"-tris[9,9-dimethylfluoren-2-yl(4-methylphenyl)amino]triphenyl-benzene (MTFATB), and 4,4',4"-tris[bis(9,9-dimethylfluoren-2-yl)amino]triphenylbenzene (TBFAPB). It is shown that they function well as hole-transporting materials in thermally stable organic light-emitting diodes.