Author/Authors :
Yang، نويسنده , , Xiaohui and Hua، نويسنده , , Yulin and Yin، نويسنده , , Shougen and Wang، نويسنده , , Zhenjia and Hou، نويسنده , , Yanbing and Xu، نويسنده , , Zheng and Xu، نويسنده , , Xurong and Peng، نويسنده , , Junbiao and Li، نويسنده , , Wenlian، نويسنده ,
Abstract :
We have synthesized an oligomer derivative of poly (phenylene vinylene) (OPPV) with oxadiazole in the main chain. Electroluminescence (EL) efficiency of single-layer OPPV device is about three to five times higher compared with single-layer poly (phenylene vinylene) (PPV) device. The reason is attributed to the improvement of electron injection and transport ability in OPPV, which is shown by combining OPPV with hole-transport layer (PPV) and electron-transport layer (Tb complex).
Keywords :
Polymer electroluminescent device , Oxadiazole , Carrier transport characteristic , Bipolar transport material
