Organometallic compounds comprising a germanium-containing substituent are provided. The compounds may be used in organic light emitting devices to provide improved device efficiency, line shape and lifetime. In particular, the compounds comprise a phenylquinoline or phenylisoquinoline ligand having a germanium-containing substituent on the quinoline or isoquinoline portion of the ligand. These compounds may be advantageously used as red emitters in the emissive layer of organic light emitting devices.
                            提供了含有
锗取代基的有机
金属化合物。这些化合物可用于有机发光器件中,以提高器件效率、线形和寿命。特别地,这些化合物包括苯基
喹啉或苯基
异喹啉配体,其在
喹啉或
异喹啉部分具有含
锗的取代基。这些化合物可以优势地用作有机发光器件中发射层的红色发射体。