H - Electricity – 05 – B
Patent
H - Electricity
05
B
H05B 33/26 (2006.01) C07F 5/06 (2006.01) C09K 11/06 (2006.01) H01L 51/30 (2006.01) H01L 51/50 (2006.01) H05B 33/14 (2006.01)
Patent
CA 2072837
An internal junction organic electroluminescent device is disclosed comprised of, in sequence, an anode, an organic hole injecting and transporting zone, an organic electron injecting and transporting zone, and a cathode. The organic electron injecting and transporting zone is comprised of an electron injecting layer in contact with the cathode and, interposed between the electron injecting layer and the organic hole injecting and transporting zone, a blue emitting luminescent layer comprised of a bis(Rs-8-quinolino-lato)aluminum(III)-µ-oxo-bis(Rs-8- quinolinolato)-aluminum(III), where Rs substituents are chosen to block the attachment of more than two substituted 8-quinolinolato ring nuclei to any one aluminum atom. Increased operating stability and device emission at even shorter blue wavelengths can be realized by the incorporation of a pentacarbocyclic aromatic fluorescent dye.
Eastman Kodak Company
Gowling Lafleur Henderson Llp
Vanslyke Steven Arland
LandOfFree
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