Organic compound, oled, and application thereof

Abstract

Provided are an organic compound, an OLED, and an application thereof. The organic compound has a structure shown in Formula I; the compound is a polycyclic aromatic compound with large conjugate plane, which is formed by connecting aromatic fused rings with heterogeneous elements such as boron and nitrogen. Through the design of skeleton structure and substituents, the compound has narrow half-peak width, high color purity and internal quantum efficiency; and with substituents introduction, the intermolecular aggregation can be effectively inhibited, thereby avoiding fluorescence decrease induced by aggregation and improving luminescence efficiency of the device, and meanwhile, can also effectively regulate triplet energy level of molecules, and effectively prolong the device lifetime. The organic compound is used for OLED devices, especially for light-emitting layer materials, which can effectively improve the luminescence efficiency, reduce turn-on voltage and energy consumption, prolong working life, and enable the OLED device to have better comprehensive performance.