| abstract |
The invention relates to a novel organic compound, in particular to a perylene diazepine derivative, and further discloses its application for preparing an organic electroluminescence device. A class of perylene diazepine derivatives disclosed by the invention has good carrier transport properties, and can be used as electron transport materials and phosphorescent host materials in OLED devices. The device test data shows that using the derivatives described in the invention Materials used as electron transport materials in organic electroluminescent devices, because of their good electron injection, high mobility and high triplet energy level, can significantly reduce device lighting and operating voltage, and play a role in improving The effect of device efficiency; Utilize the derivative described in the present invention as the phosphorescence host material in the organic electroluminescent device, because it has balanced hole and electron transport performance, and has suitable bandgap to be conducive to significantly reducing the rise and fall of the device Bright and working voltage and high triplet energy level, it is beneficial to effectively transfer the excitonic energy to the phosphorescent dye, and play a role in improving the efficiency of the device. |