公开(公告)号：US20050164031A1

公开(公告)日：2005-07-28

申请号：US10807739

申请日：2004-03-24

Applicant: Mark Thompson ,  Biwu Ma ,  Peter Djurovich

Inventor： Mark Thompson ,  Biwu Ma ,  Peter Djurovich

IPC: C07F15/00 ,  C09K11/06 ,  H01L51/00 ,  H01L51/30 ,  H01L51/50 ,  H05B33/14

CPC classification number: C09K11/06 ,  C07F15/0033 ,  C07F15/0086 ,  C07F15/0093 ,  C09K2211/185 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/009 ,  H01L51/5016 ,  H05B33/14

Abstract: An organic light emitting device is provided. The device has an anode, a cathode, and an emissive layer disposed between and electrically connected to the anode and the cathode. The emissive layer further comprises a compound having two metal centers, in which each metal has an atomic weight greater than 40. A bridging ligand, small molecule, or polymer is coordinated to both metal centers, and at least one photoactive ligand is bound to each metal. In one embodiment, the transition dipole moment of the photoactive ligand bound to the first metal is orthogonal to the photoactive ligand bound to the second metal. In another embodiment, the first metal center and the atoms of the bridging ligand that are coordinated to the first metal center form a plane and the atoms of the bridging ligand that are coordinated to the second metal center form another plane, and the planes form an angle that is between about 80 degrees and 100 degrees. In another embodiment, the bridging ligand is diacetylacetonate. In another embodiment, a polymer or small molecule is coordinated to both metals, and the metal-ligand complex for the first metal center is different from the metal-ligand complex for the second metal center.

Abstract translation: 提供有机发光装置。 该装置具有阳极，阴极和布置在阳极和阴极之间并电连接到阳极和阴极的发射层。 发射层还包括具有两个金属中心的化合物，其中每个金属的原子量大于40。桥连配体，小分子或聚合物与两个金属中心配位，并且至少一个光活性配体结合到每个 金属。 在一个实施方案中，与第一金属结合的光活性配体的跃迁偶极矩与与第二金属结合的光活性配体正交。 在另一个实施方案中，与第一金属中心配位的桥接配体的第一金属中心和原子形成平面，并且与第二金属中心配位的桥连配体的原子形成另一平面，并且平面形成 角度在大约80度和100度之间。 在另一个实施方案中，桥连配体是二乙酰丙酮化物。 在另一个实施方案中，聚合物或小分子与两种金属配位，第一金属中心的金属 - 配体络合物不同于第二金属中心的金属 - 配体络合物。