Iridium complexes as light emitting materials and organic light emitting diode device
申请人:Cheng Chien-Hong
公开号:US20050116626A1
公开(公告)日:2005-06-02
Phosphorescent iridium complexes having Formula I or Formula II:
wherein X is chosen from a monoanionic bidentate ligand; Z is chosen from an atomic group wherein Z together with the buta-1,3-diene to which Z is attached form an aryl group or heteroaryl group; R, R
1
, and R
2
are independently chosen from a hydrogen atom or a substituent; m is an integer from 0 to 4; and n is an integer from 0 to the maximum number of possible substituents on Z, are disclosed. Light emitting devices using the phosphorescent iridium complexes are also disclosed.