Author/Authors :
Chen، نويسنده , , Jian Ping and Tanabe، نويسنده , , Hiroshi and Li، نويسنده , , Xiao-Chang and Thoms، نويسنده , , Travis and Okamura، نويسنده , , Yoshimasa and Ueno، نويسنده , , Kazunori، نويسنده ,
Abstract :
We have synthesized a new hole transport (HT) compound, 4,4′,4″-tri(N-dibenzo[a,g]carbazolyl)triphenylamine (TDCTA). Due to the combined star-shaped structure and much-fused dibenzo[a,g]carbazolyl chromophores, TDCTA exhibits a very high glass transition temperature (Tg) at 212 °C and a high thermal decomposition temperature (Td) at 575 °C. When used as a HT in non-optimized double-layer organic light-emitting diodes (OLEDs), TDCTA shows a good hole transporting property.
