Organic phosphorescent material and organic optoelectronic...

Details Organic phosphorescent material and organic optoelectronic... Organic phosphorescent material and organic optoelectronic...

2004-05-17

2010-02-09

Yamnitzky, Marie R. (Department: 1794)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C257SE51044, C548S103000, C548S402000, C546S004000, C544S225000

Reexamination Certificate

active

07659010

ABSTRACT:
The invention provides a cyclometallated complex comprising the structure of formula Iwherein:M is a d-block transition metal;B is a five- or six-membered aryl or heteroaryl ring which is optionally substituted and optionally fused to one or more other aryl or heteroaryl rings;A is a five- or six-membered heteroaryl ring comprising at least three nitrogen atoms;R1is a group other than hydrogen;n is zero or an integer equal to or greater than one; andA and B are optionally fused or linked by one or more covalent bonds.The invention also provides the use of such complexes in optoelectronic devices, and in particular in organic light emitting devices.

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