Organometallic compounds comprising an imidazole carbene ligand having a N-containing ring fused to the imidazole ring are provided. In particular, the N-containing ring fused to the imidazole ring may contain one nitrogen atom or more than one nitrogen atom. These compounds may demonstrate high photoluminescent (PL) efficiency, Gaussian emission spectra, and/or short excited state lifetimes. These materials may be especially useful as blue phosphorescent emitters.
提供了包含
咪唑碳烯
配体的有机
金属化合物,该
配体具有与
咪唑环融合的含 N 环。特别是,与
咪唑环融合的含 N 环可包含一个氮原子或多个氮原子。这些化合物可表现出较高的光致发光(PL)效率、高斯发射光谱和/或较短的激发态寿命。这些材料作为蓝色
磷光发光体可能特别有用。