Abstract:
An organic light emitting device is provided. The device has an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer further comprising an emissive material having the structure: (I) M may be a metal having an atomic weight greater than 40. R 3 may be a substituent having a Hammett value less than about -0.17, between about -0.15 and 0.05, or greater than about 0.07. R 5 may be H or any substituent. A may be a 5 or 6 member heteroaryl ring system. "m" may be at least 1. "n" may be at least zero. (X-Y) may be an ancillary ligand. The emissive material itself is also provided. The emissive material may have improved stability, and may provide a saturated blue emission.
Abstract:
An organic light emitting device is provided. The device includes an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer includes a material having the structure: (I) M is a metal having an atomic weight greater than 40, m is at least 1, n is at least zero, R" is H or any substituent, X is an ancillary ligand, and A is selected from the group consisting of aryl and heteroaryl rings, and B is an aryl ring. A material including the photoactive ligand of the above material is also provided.
Abstract:
An organic light emitting device is provided. The device has an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer further comprising an emissive material having the structure: M is a metal having an atomic weight greater than 40. R 5 is an aromatic group. The emissive material itself is also provided. The emissive material provides an improved stability and efficiency.
Abstract:
An organic light emitting device is provided. The device has an anode, a cathode and an organic layer disposed between the anode and the cathode. The organic layer comprises a compound further comprising one or more carbene ligands coordinated to a metal center.
Abstract:
Heteroleptic compounds containing phenylpyridine and phenylbenzimidazole are provided. The compounds may be used in organic light emitting devices, particularly as emissive dopants in the emissive layer of such devices.
Abstract:
Organic devices comprising an organic layer, wherein the organic layer is non-electroluminescent and comprises a cross-linked metal complex. The cross-linked metal complex may be formed by cross-linking a cross-linkable iridium complex, which comprises a set of ligands coordinated to a central iridium atom. One or more of the ligands have attached thereon, one or more polymerizable groups that are able to polymerize with other molecules to form intermolecular covalent bonds. In some cases, the organic layer may also comprise a dopant. Also provided are a method of making an organic light-emitting device, an iridium complex, and an organic-light emitting device using certain iridium complexes.
Abstract:
An organic light emitting device is provided. The device has an anode, a cathode and an organic layer disposed between the anode and the cathode. The organic layer comprises a compound further comprising one or more arylpyrazole, arylimidazole, aryltriazole, or aryltetrazole derivative ligands coordinated to a metal center. The ligand has the structure:
Abstract:
Novel heteroleptic iridium carbene complexes are provided, which contain at least two different carbene ligands. Selective substitution of the carbene ligands provides for phosphorescent compounds hat are suitable for use in a variety of OLED devices.
Abstract:
Compounds comprising a triphenylene moiety and a benzo- or dibenzo- moiety are provided. In particular, the benzo- or dibenzo- moiety has a fused substituent. These compounds may be used in organic light emitting devices, particularly in combination with yellow, orange and red emitters, to provide devices with improved properties.