The present disclosure relates to a light-emitting diode (LED) in which an organic compound including an imidazolium-based cationic moiety and an amine-based anionic moiety substituted with a strong electron-withdrawing group such as a sulfonyl group or a cyano group is applied to a hole transfer layer, and a light-emitting device. By applying the organic compound according to the present disclosure to the hole transfer layer, an energy barrier between the hole transport layer and an emitting material layer is removed, and an LED having improved hole transport properties can be designed. Therefore, it is possible to realize and manufacture an LED and a light-emitting device, driven at a low voltage and having improved luminous efficiency.
本公开涉及一种发光二极管(LED),其中在空穴传输层上应用了一种有机化合物,该有机化合物包括一个
咪唑阳离子基团和一个被强夺电子基团(如磺酰基或
氰基)取代的胺阴离子基团,以及一种发光器件。通过将本公开的有机化合物应用于空穴传输层,可消除空穴传输层与
发光材料层之间的能量障碍,从而设计出具有改进的空穴传输特性的 LED。因此,可以实现和制造在低电压下驱动并具有更高的发光效率的 LED 和发光器件。