Structural Effects of TDAB Amorphous Hole Transporting Materials on Performance of Organic EL Device

Abstract

Abstract For the fabrication of high stable organic electroluminescent device, we have synthesized amorphous molecular materials such as 1,3,5-tris(phenylphenylamino)benzene (TDAB), p-ClTDAB, p-BrTDAB and p-MetTDAB as hole transporting materials and investigated ITO/p-XTDAB (X=Br, Cl, methoxy)/Alq3/Al device emitted green light. It has been found that organic EL device consisting of ITO/p-BrTDAB/Alq3/Al showed high EL intensity. Especially, the durability and EL performance of organic EL device using the amorphous hole transporting material were studied.