PHOSPHORESCENT ORGANOMETALLIC IRIDIUM COMPLEX, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE
申请人:Semiconductor Energy Laboratory Co., Ltd.
公开号:US20130221278A1
公开(公告)日:2013-08-29
A novel phosphorescent organometallic iridium complex is provided in which a coordination position of a ligand with respect to a metal can be controlled in synthesis. A novel phosphorescent organometallic iridium complex is provided which can keep high quantum efficiency and can emit phosphorescence in the blue to green wavelength region. A phosphorescent organometallic iridium complex which includes a structure represented by General Formula (G1) and whose ligand is a 4H-1,2,4-triazole compound which has an unsubstituted phenyl group at the 3-position, a substituted or unsubstituted phenyl group at the 4-position, and a phenyl group at the 5-position. In the phenyl group at the 5-position, an alkyl group is bonded to at least one of the ortho-positions, and the other of the ortho-positions, the meta-positions, and the para-position are substituted or unsubstituted.
提供了一种新型的磷光有机金属铱配合物,可以在合成过程中控制配体相对于金属的配位位置。该配合物具有高量子效率,能够在蓝色到绿色波长区域发射磷光。该磷光有机金属铱配合物包括一个由通式(G1)表示的结构,其配体是一种4H-1,2,4-三唑化合物,其3位上具有未取代的苯基,4位上具有取代或未取代的苯基,5位上具有苯基。在5位上的苯基中,至少有一个邻位与烷基键合,而另一个邻位、间位和对位则被取代或未取代。