Three hole transport materials, FIPN-p-PCz, FIPN-p-TPA and FIPN-DPCz, incorporating fluorene/indole core with carbazole or triphenylamine unit were synthesized and fully characterized. The photophysical properties, thermal properties and electrochemical properties of these three compounds were fully investigated. The FIPN-based hole transport materials show high thermal stability (T_d > 420 °C) and appropriate highest occupied molecular orbital (HOMO) level (∼-5.2 eV). Green phosphorescent organic light-emitting diodes (PhOLEDs) using these FIPN-based derivatives were fabricated to investigate the device performance, compared with NPB as the reference hole transport material. It turned out that the devices using these three compounds exhibited superior performance than that of the NPB-based PhOLED device. Especially, the FIPN-p-PCz based device showed outstanding electroluminescence performance with the maximum current efficiency and external quantum efficiency of 53.7 cd/A and 17.3%, respectively, which was almost twice that of the NPB based device.

三种空穴传输材料，FIPN- p -PCz，FIPN- p -TPA和FIPN-DPCz，结合与咔唑或三苯胺单元芴/吲哚核的合成和完全表征。全面研究了这三种化合物的光物理性质，热性质和电化学性质。基于FIPN的空穴传输材料显示出高的热稳定性（T _d > 420°C）和适当的最高占据分子轨道（HOMO）水平（〜-5.2 eV）。与NPB作为参考空穴传输材料相比，使用这些基于FIPN的衍生物制造了绿色磷光有机发光二极管（PhOLED），以研究器件性能。事实证明，使用这三种化合物的器件表现出比基于NPB的PhOLED器件更高的性能。尤其是，基于FIPN- p -PCz的器件表现出出色的电致发光性能，其最大电流效率和外部量子效率分别为53.7 cd / A和17.3％，几乎是基于NPB的器件的两倍。