New Patents

Last updated on Fri 03/03/2023 - 10:24

From Yahoo board courtesy panlstl & biotje:

"panlstl • 26 minutes ago  New Patents

United States Patent 8,586,203 Kwong , et al. November 19, 2013 Metal complexes with boron-nitrogen heterocycle containing ligands Abstract Novel organic compounds comprising ligands containing a boron-nitrogen heterocycle are provided. In particular, the compound is a metal complex comprising a ligand containing an azaborine. The compounds may be used in organic light emitting devices to provide devices having improved photophysical and electronic properties. United States Patent 8,586,204 Xia , et al. November 19, 2013 Phosphorescent emitters and host materials with improved stability Abstract Devices containing a particular combination of organic compounds are provided. In particular, the devices contain twisted aryl compounds having extended conjugation (i.e., the twisted aryl is substituted with an additional aryl group) in combination with dibenzothiophene or dibenzofuran containing host materials. The organic light emitting devices may provide improved stability color, lifetime and manufacturing. Compounds containing a twisted aryl having extended conjugation are also provided. United States Patent 8,586,967 Xue , et al. November 19, 2013 High efficiency organic photovoltaic cells employing hybridized mixed-planar heterojunctions Abstract A device is provided, having a first electrode, a second electrode, and a photoactive region disposed between the first electrode and the second electrode. The photoactive region includes a first organic layer comprising a mixture of an organic acceptor material and an organic donor material, wherein the first organic layer has a thickness not greater than 0.8 characteristic charge transport lengths, and a second organic layer in direct contact with the first organic layer, wherein: the second organic layer comprises an unmixed layer of the organic acceptor material or the organic donor material of the first organic layer, and the second organic layer has a thickness not less than about 0.1 optical absorption lengths. Preferably, the first organic layer has a thickness not greater than 0.3 characteristic charge transport lengths. Preferably, the second organic layer has a thickness of not less than about 0.2 optical absorption lengths. Embodiments of the invention can be capable of power efficiencies of 2% or greater, and preferably 5% or greater.

 

 

 

 

biotje • 5 minutes ago

Inventors: Xia; Chuanjun (Lawrenceville, NJ), Yeager; Walter (Yardley, PA), Ma; Bin (West Windsor, NJ), Beers; Scott (Flemington, NJ), Tsai; Jui-Yi (Lawrenceville, NJ), Fiordeliso; James (Morrisville, PA), Barron; Edward (Hamilton, NJ), Lin; Chun (Langhorne, PA) Assignee: Universal Display Corporation (Ewing, NJ)"