The present invention discloses a 9,10-dihydro-acridine derivative having a structure of Formula (I). The compound has a suitable HOMO energy level that matches that of an anode and light emitting layer when used as a material of a hole transport layer, thus reducing the potential barrier needed to overcome when holes are transported to the light emitting layer, and reducing the operating voltage of the device. Moreover, the 9,10-dihydro-acridine derivative has high triplet energy level and LUMO level, to avoid the returning of energy from the light emitting layer, retain the electrons in the light emitting layer, increase the probability of recombination of electrons and holes in the light emitting layer, and enhance the luminescence efficiency of the device. The compound of Formula (I) has high glass transition temperature, good film forming performance, and high thermal stability. The present invention further discloses an organic light-emitting device having at least one functional layer containing the 9,10-dihydro-acridine derivative. When the compound is used as a material of the hole transport layer, a light-emitting device of high luminescence efficiency and low driving voltage is obtained.
本发明公开了一种具有式(I)结构的
9,10-二氢吖啶衍
生物。该化合物在用作空穴传输层材料时,具有与阳极和发光层相匹配的合适的 HOMO 能级,从而降低了空穴传输到发光层时需要克服的势垒,并降低了器件的工作电压。此外,9,10-二氢-
吖啶衍
生物具有较高的三重能级和 LUMO 能级,可避免发光层的能量回流,将电子保留在发光层中,增加发光层中电子和空穴的
重组概率,提高器件的发光效率。式(I)化合物的
玻璃化温度高,成膜性能好,热稳定性高。本发明进一步公开了一种有机发光器件,该器件具有至少一个含有
9,10-二氢吖啶衍
生物的功能层。当使用该化合物作为空穴传输层的材料时,可获得发光效率高、驱动电压低的发光器件。