A luminescence device having a layer containing a metal coordination compound which has a partial structure MLm of formula (2) below and is preferably entirely represented by formula (3) below:
MLmL'n (3),
wherein M denotes a metal atom of Ir, Pt, Rh or Pd; represent mutually different bidentate ligands; m is 1 or 2 or 3; n is 0 or 1 or 2 with the proviso that m+n = 2 or 3; the partial structure MLm is represented by formula (2) below (wherein B is an isoquinolyl group bonded to the metal M with its N and including a position-1 carbon atom bonded to a cyclic group A which includes the C bonded to the metal M), and the partial structure ML'n is represented by formula (4), (5) or (6) shown below. There is provided a luminescence device capable of high-efficiency luminescence and long-term high luminance and adapted to red luminescence.
一种发光器件,其发光层含有
金属配位化合物,该
金属配位化合物的部分结构 MLm 如下式(2)所示,最好完全由下式(3)表示:
MLmL'n (3)、
其中 M 表示 Ir、Pt、Rh 或 Pd 的
金属原子;代表相互不同的双齿配位体;m 为 1 或 2 或 3;n 为 0 或 1 或 2,但 m+n = 2 或 3;部分结构 MLm 由下式(2)表示(其中 B 是与
金属 M 结合的
异喹啉基团,其 N 包括与环状基团 A 结合的第 1 位碳原子,环状基团 A 包括与
金属 M 结合的 C),部分结构 ML'n 由下式(4)、(5)或(6)表示。本发明提供了一种能够高效发光和长期高亮度并适用于红色发光的发光器件。