material in the electrophosphorescent device, the emission is 100% saturated red light starting at ∼600 nm, extending into the near-infrared region. The bathochromic shift, compared to the fluorescence and phosphorescence from Alq 3 , Ptq 2 and Ir(ppy) 3 , was analyzed to originate from the triplet excited state of 8-hydroxyquinoline ligand and the crystal structure analysis excludes the origin of π–π intermolecular
摘要合成了由
2-苯基吡啶(ppy)和
8-羟基喹啉(q)配位的
铱配合物ppy 2 Irq,并对其热稳定性,吸收,光致发光,晶体结构和电致
磷光进行了表征。该材料的熔点高达374°C,在高真空下加热时不会分解,因此可以很好地升华。当将ppy 2 Irq用作电致
磷光器件中的客体发射材料时,发射的光是从〜600 nm开始的100%饱和红光,并延伸到近红外区域。与Alq 3,Ptq 2和Ir(ppy)3的荧光和
磷光相比,红移现象