Quantum Materials Corp. (fka QTMM)

[DDhawk]

Dr.J granted new patent...

*Kudos to Specvestor for spotting this*
Don't know if QMC has a use/piece of this but , notable just-the-same.
***"Organometallic materials for optical emission, optical absorption, and devices including organometallic materials "
United States Patent 8106199
SUMMARY
-In one aspect, an organometallic complex includes a cyclometalating ligand and a transition metal. The cyclometalating ligand includes a fused aromatic ring structure with carbon atoms and a heteronuclear aromatic ring with a nitrogen atom. The transition metal is bonded to the nitrogen atom in the heteronuclear aromatic ring and to one of the carbon atoms in the fused aromatic ring structure. The organometallic complex is capable of phosphorescent emission with maximum emission intensity occurring at a wavelength in a range from about 650 nm to about 2000 nm. In some embodiments, the wavelength of the maximum emission intensity is tunable, based on the cyclometalating ligand.
-In some implementations, the transition metal is chosen from the group consisting of Pt(II), Pd(II), Ir(III), and Rh(III). The organometallic complex can include at least one additional cyclometalating ligand. In some embodiments, the fused aromatic ring structure of the cyclometalating ligand includes the heteronuclear aromatic ring. The fused aromatic ring structure of the cyclometalating ligand includes at least four fused aromatic rings.
-The heavy transition metal and the cyclometalating ligand advantageously provide a broad absorption spectrum and substantially exclusive near infrared emission, with essentially no emitted light in the visible region, allowing these compounds to be used as night vision display devices.
-In some implementations, the cyclometalating ligand includes a pyrenyl group. For instance, the cyclometalating ligand can be pyrenyl-pyridine, 1-pyrenyl-quinolone, pyrenyl-benziso-quinolone, or 1-pyrenyl-iso-quinolone. In some implementations, the cyclometalating ligand includes a perylenyl group. In certain implementations, the cyclometalating ligand includes an aza-oligoryne group. One or more additional aromatic rings can be fused to the aza-oligoryne group to form the cyclometalating ligand.
-In some implementations, the organometallic complex includes at least one ancillary ligand, and the transition metal is bonded to two atoms of the ancillary ligand. The ancillary ligand can be, for example, acetoacetonate or a 2-phenylpyridine. The 2-phenylpyridine can be fluorinated.
-In another aspect of the invention, an organometallic complex has the structure where M is a transition metal chosen from the group consisting of Pt(II), Pd(II), Ir(III), and Rh(III), L^X is an ancillary ligand, n is an integer ranging from 1 to 3, 1 is an integer ranging from 0 to 2, and m is an integer ?0. In some embodiments, one or more additional aromatic rings are fused to the azaperylene structure shown above. The organometallic complex is capable of phosphorescent emission with maximum emission intensity occurring at a wavelength in a range from about 650 nm to about 2000 nm. In some implementations, the maximum phosphorescent emission intensity occurs at a wavelength between about 650 nm and about 1000 nm.
-In some implementations, light processing devices, such as OLEDs and organic solar cells, include the organometallic complexes as near infrared phosphorescent emitters and/or broadband absorbers.
-In another aspect, a phosphorescent device includes a phosphorescent emitter in a host material. The phosphorescent emitter is an organometallic complex with an cyclometalating ligand having at least four fused aromatic rings. The phosphorescent emitter has an emission maximum at a wavelength between about 650 nm and about 2000 nm, and the traction of total emission attributed to near infrared is at least about 75%. In some cases, the fraction of total emission attributed to near infrared is at least about 90%.
-In some implementations, the phosphorescent device is an organic light emitting device or an organic solar cell. In certain implementations, a night vision display device includes the phosphorescent device. With substantially exclusive near infrared emission, the display device is advantageously undetectable by the unaided human eye.
-The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the invention will be apparent from the description and drawings, and from the claims.
*source; http://www.freepatentsonline.com/8106199.html
Now if we can get Dock to tell us just WTH this is all about ;))