申请人:Universal Display Corporation
公开号:US20150249225A1
公开(公告)日:2015-09-03
Organic light emitting materials and devices comprising phosphorescent metal complexes comprising ligands comprising aryl or heteroaryl groups substituted at both ortho positions are described. An organic light emitting device, comprising: an anode; a hole transport layer; an organic emissive layer comprising an emissive layer host and an emissive dopant; an electron impeding layer; an electron transport layer; and a cathode disposed, in that order, over a substrate.
本文介绍了包括芳基或杂环基团在两个邻位取代的配体的磷光金属络合物的有机发光材料和器件。一种有机发光器件,包括:阳极;空穴传输层;有机发光层,包括发光层主体和发光掺杂剂;电子阻隔层;电子传输层;以及依次沉积在基板上的阴极。