Phenyl and fluorenyl substituted phenyl-pyrazole complexes...

Details Phenyl and fluorenyl substituted phenyl-pyrazole complexes... Phenyl and fluorenyl substituted phenyl-pyrazole complexes...

2008-03-04

2008-03-04

Yamnitzky, Marie (Department: 1774)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C313S506000, C257SE51044, C548S101000, C548S103000

Reexamination Certificate

active

07338722

ABSTRACT:
An organic light emitting device is provided, having an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer may include the following compound:whereinM is a metal having an atomic weight greater than 40;(C—N) is a substituted or unsubstituted cyclometallated ligand, and (C—N) is different from at least one other ligand attached to the metal;each R is independently selected from hydrogen, alkyl, alkenyl, alkynyl, alkylaryl, CN, CF3, CO2R, C(O)R, NR2, NO2, OR, halo, aryl, heteroaryl, substituted aryl, substituted heteroaryl, or a heterocyclic group.The emissive layer may also include a compound having a metal bonded to at least two ligands, in which one ligand has a triplet energy corresponding to a wavelength that is at least 80 nm greater than the wavelength corresponding to the triplet energy of other ligands. Each ligand may be organometallic.

REFERENCES:
patent: 4769292 (1988-09-01), Tang et al.
patent: 5247190 (1993-09-01), Friend et al.
patent: 5703436 (1997-12-01), Forrest et al.
patent: 5707745 (1998-01-01), Forrest et al.
patent: 5834893 (1998-11-01), Bulovic et al.
patent: 5844363 (1998-12-01), Gu et al.
patent: 6013982 (2000-01-01), Thompson et al.
patent: 6087196 (2000-07-01), Sturm et al.
patent: 6091195 (2000-07-01), Forrest et al.
patent: 6097147 (2000-08-01), Baldo et al.
patent: 6294398 (2001-09-01), Kim et al.
patent: 6303238 (2001-10-01), Thompson et al.
patent: 6310360 (2001-10-01), Forrest et al.
patent: 6337102 (2002-01-01), Forrest et al.
patent: 6468819 (2002-10-01), Kim et al.
patent: 2001/0019782 (2001-09-01), Igarashi et al.
patent: 2002/0034656 (2002-03-01), Thompson et al.
patent: 2002/0182441 (2002-12-01), Lamansky et al.
patent: 2003/0072964 (2003-04-01), Kwong et al.
patent: 2003/0124381 (2003-07-01), Thompson et al.
patent: 2003/0175553 (2003-09-01), Thompson et al.
patent: 2003/0230980 (2003-12-01), Forrest et al.
patent: 2004/0048101 (2004-03-01), Thompson et al.
patent: 2004/0086743 (2004-05-01), Brown et al.
patent: 2004/0174116 (2004-09-01), Lu et al.
patent: 2002 105055 (2002-04-01), None
patent: WO 01/41512 (2001-06-01), None
patent: WO 02/15645 (2002-02-01), None
patent: WO 02/074015 (2002-09-01), None
Dedeian et al., “Photophysical and Electrochemical Properties of Heteroleptic Tris-Cyclometalated Iridium (III) Complexes”, Inorganic Chemistry, 44(13), pp. 4445-4447, published on Web May 21, 2005.
Kwong et al., “High Operational Stability of Electrophosphorescent Devices,” Appl. Phys. Lett., vol. 81, No. 1, pp. 162-164 (2002).
Baldo et al., “Highly Efficient Phosphorescent Emission from Organic Electroluminescent Devices,” Nature, vol. 395, pp. 151-154 (1998).
Baldo et al., “Very High-Efficiency Green Organic Light-Emitting Devices Based on Electrophosphorescence,” Appl. Phys. Lett., vol. 75, No. 1, 4-6 (1999).
Adachi et al., “Nearly 100% Internal Phosphorescent Efficiency in an Organic Light Emitting Device,” J. Appl. Phys., vol. 90, No. 10, pp. 5048-5051 (2001).
V. Adamovich, et al., “High Efficiency single dopant white electrophosphorescent light emitting diodes”, New J. Chem., 2002, 26, pp. 1171-1178.

Affiliated with

Also associated with

Rating

Phenyl and fluorenyl substituted phenyl-pyrazole complexes... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phenyl and fluorenyl substituted phenyl-pyrazole complexes..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phenyl and fluorenyl substituted phenyl-pyrazole complexes... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2787058