four-pyridylbenzene-armed biphenyl derivatives were designed and synthesized as an electron-transport and exciton- and hole-block layer for the fac-tris(2-phenylpyridine)iridium (Ir(PPy)3)-based green phosphorescent organic light-emitting devices (OLEDs), giving improved efficiency in comparison to that with both the electron-transport layer of tris(8-hydroxyquinoline)aluminum (Alq3) and the exciton- and hole-block
设计并合成了一系列四
吡啶基
苯酚联苯衍
生物,作为基于fac-tris(
2-苯基吡啶)
铱(Ir(PPy)3)的绿色
磷光有机电子的电子输运和激子和空穴阻挡层发光器件(OLED),与三(
8-羟基喹啉)铝(Alq3)的电子传输层和2,9-二甲基-4的激子和空穴阻挡层相比,效率得到了提高,7-二苯基
菲咯啉(
BCP)。