265 results about "Ir element" patented technology

An organic light emitting device is provided. The device has an anode, a cathode and an organic layer disposed between the anode and the cathode. The organic layer comprises a host and a dopant, and the host comprises a compound having at least one carbene atom coordinated to iridium, and the compound has the structure:

An organic light-emitting element having high efficiency and long lifetime is provided. An organic light-emitting body is provided which includes a host having a high electron-transport property (n-type host), a host having a high hole-transport property (p-type host), and a guest such as an iridium complex and in which the n-type host and the p-type host are located so as to be adjacent to each other. When an electron and a hole are injected to such a light-emitting body, the electron is trapped by the n-type host and the hole is trapped by the p-type host. Then, both the electron and the hole are injected to the guest, and thus the guest is brought into an excited state. In this process, less thermal deactivation occurs and the working rate of the guest is high; thus, highly efficient light emission can be obtained.

Bidentate ligand, iridium complex and electro-generated phosphorescent device of iridium complex are disclosed. The bidentate contains cavity transmission group carbazole, the chemical formula of the iridium complex is Ir(C^N)2 (acac), acac= acetyl acetone. The electro-luminescent device consists of conductive glass lining bottom, cavity injecting layer, luminescent layer and cathodic layer. The doping material of luminescent layer is iridium complex of bidentate ligand. Its advantages include to balance transmission ability of current carrier, and to improve brightness and efficiency of device for organic electro-luminescent domain.

A laminate semiconductor article includes a flexible substrate, an optional biaxially textured oxide buffer system on the flexible substrate, a biaxially textured Ir-based buffer layer on the substrate or the buffer system, and an epitaxial layer of a semiconductor. Ir can serve as a substrate with an epitaxial layer of a semiconductor thereon.

An electrochemiluminescence cell comprising an electrode capable of inducing an electrochemiluminescence-active species to electrochemiluminesce. The electrode is preferably made of rhodium, iridium or an alloy of platinum, rhodium or iridium alloyed with an alloy material comprising a transition element. The electrode may be used as counter electrode and / or as a working electrode in the electrochemiluminescence cell. The cell preferably includes a counter electrode and a support attached to the counter electrode. The support comprises a transparent portion in optical registration with the working electrode. The counter electrode may include one or more field extending elements interposed between the transparent portion and the working electrode. The field extending element is preferably a ladder or a grid.

An organic electroluminescent device containing:a six-coordinate, ortho-metalated iridium complex represented by the formula (I):wherein V represents a trivalent linking group and is bound to L1 to L3 through covalent bonds;each of L1 to L3 is represented by the formula (II);X5 and Ir form a coordinate bond;X7 and Ir form a covalent bond;each of X1 to X5 represents a group of elements composing a nitrogen-containing heterocycle, selected from carbon atom or nitrogen atom;at least one of X4 and X5 represents a nitrogen atom;each of X6 to X11 represents a group of element composing an aromatic five-membered ring or aromatic six-membered ring, and is selected from carbon atom or nitrogen atom;when X6 to X11 form an aromatic five-membered ring, X11 merely represents a bond; andR1 represents a substituted aryl group having seven or more carbon atoms.

Disclosed is an electroluminescent device comprising a light-emitting layer containing a light emitting phosphorescent material that contains an organometallic complex comprising iridium and an indole compound with an unsubstituted phenyl ring or comprising Ir, Rh, Os, Ru, Pt, and Pd and an isoindole compound. The invention further comprises compositions of certain such complexes as well as a display or area lighting devices and a process for emitting light. The organometallic materials function as useful phosphorescent light emitting materials in electroluminescent devices.

A process for removing and / or dry etching noble metal-based material structures, e.g., iridium for electrode formation for a microelectronic device. Etch species are provided by plasma formation involving energization of one or more halogenated organic and / or inorganic substance, and the etchant medium including such etch species and oxidizing gas is contacted with the noble metal-based material under etching conditions. The plasma formation and the contacting of the plasma with the noble metal-based material can be carried out in a downstream microwave processing system to provide processing suitable for high-rate fabrication of microelectronic devices and precursor structures in which the noble metal forms an electrode, or other conductive element or feature of the product article.

The invention discloses a phosphorescent iridium complex with high luminescent quantum efficiency and thermal stability and an electroluminescence device of the complex. In the phosphorescent iridium complex, the ligands are characterized by 3-or 6-phenyl pyridazine, a central metal ion is Ir (III), and the metal ion and three ligands form a neutral complex with the same cyclic metal ligands. In the ligand in the invention, the atom adjacent to coordination N atom is also N atom, thereby avoiding the interference of H atom on the adjacent C atom on complexing of N and metal when pyridine is taken as ligand so that the binding between the ligands and the metal ion is firmer and metal ligand charge transfer (MLCT) process is facilitated. Thus, the iridium complex has high luminescent quantum efficiency and thermal stability. Simultaneously, the energy gap of the iridium complex can be regulated through changing other functional groups on the ligand, so as to regulate the emission wavelength of a material. The iridium complex has an application potential in the aspects of organic electroluminescent display based on red-blue-green three primary colors, backlight in liquid crystal display, organic solid illumination and the like.

An organometallic iridium complex has high emission efficiency and a long lifetime. The iridium complex includes the structure represented by Formula (G1). In the formula, Ar represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms. R1 to R6 independently represent any one of hydrogen and a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, and one of R2 and R6 represents the alkyl group. X represents a carbon atom or a nitrogen atom, and when X represents a carbon atom, hydrogen or an alkyl group having 1 to 6 carbon atoms is bonded to the carbon atom. A dihedral angle between a ring bonded to R1 and a phenyl group bonded to R2 to R6 is 30° or more and 90° or less. An interior angle of the pyridine / pyrimidine ring facing R1 is within a range of 118° to 122°.

The invention pertains to the technical field of electrocatalysis and energy transformation, more particularly relates to a non-Pt metal electrocatalyst used for fuel cells, a preparation method and the application thereof. The electrocatalyst uses Ir element and other transition metals as active ingredients which are carried on a catalyst carrier to obtain a novel catalyst used for the fuel cells. The electrocatalyst can be obtained by means of physical sputtering, high-temperature calcinations, gas-phase chemical reduction, liquid-phase chemical reduction, electrochemical deposition, or electrophoretic deposition, and the like. The electrocatalyst prepared by the method can be used not only as the cathode catalyst of the fuel cells, but also as the anode catalyst of the fuel cells. More importantly, the novel non-Pt metal electrocatalyst can avoid the dependence on Pt which is high in price and low in reserves, thus being beneficial to the commercialization of the fuel cells. Furthermore, the novel non-Pt metal electrocatalyst has higher activity and stability and the advantages of low price, simple preparation process, being suitable for large-scale production and the like.

The object of the present invention is to provide an iridium complex compound emitting red light, a composition comprising the iridium complex compound and a solvent, an organic electroluminescent element which is produced using the compound or the composition and has a long driving life and an excellent electronic durability, and a display device and lighting device using the organic electroluminescent element. The present invention relates to an iridium complex compound solvent having a 2-phenyl quinazoline framework and a specific substituent.

Laminated, biaxially textured superconductors include Ir-based buffer layers and / or substrates.

A light-emitting element including a phosphorescent organometallic complex is provided. The organometallic complex emits phosphorescence in the yellow green to orange wavelength range and has high emission efficiency and high reliability. Thus, the organometallic complex that exhibits phosphorescence is provided. The organometallic complex, in which nitrogen at the 3-position of a pyrimidine ring is coordinated to a metal, a carbazole skeleton is bonded to the 4-position of the pyrimidine ring, and the carbazole skeleton is bonded to the metal, is used as an emission center. The metal is preferably a Group 9 element or a Group 10 element, more preferably iridium.

The invention discloses an iridium complex containing hole transporting functional group and an electroluminescent device of the iridium complex, which are the functional materials and the device structures having application potentials in many respects of the electroluminescent field such as information display, solid illumination and backlight source, etc. A novel ligand is introduced into the complex, wherein the ligand is based on the C^N=N structure and introduced with strong current carrier transporting groups containing N atom as centre, so that not only is the good performance of the complex itself kept but also the electric property of the material is enhanced. The metal iridium complex containing three same ligands is formed by the complexing reaction between the ligands and the metal iridium. Such materials have the advantages of high luminous quantum efficiency, good thermal stability and improved electric property due to the specificity of the structure. The electroluminescent device based on such materials is excellent in performances and is featured with very high application potentials in the fields such as information display, solid illumination and backlight source, and the like.

The present invention discloses an indenotriphenylene-based iridium complexes is represented by the following formula (1), the organic EL device employing the derivative as light emitting dopant of emitting layer can display good performance like as lower driving voltage and power consumption, increasing efficiency and half-life time.wherein A ring represents an imidazole, a pyridine, a quinoline and an isoquinoline, X1-X2 represents a bidentate ligand, and m, n and R1 to R4 are the same definition as described in the present invention.

A light-emitting body comprising a primary luminescent unit and a secondary luminescent unit that emits light owing to light emitted from the primary luminescent unit, wherein the secondary luminescent unit contains an iridium compound. As the iridium compound, an iridium complex represented by L1L2L3Ir, (L1, L2 and L3 are organic bidentate ligands coordinated to iridium, and at least one of these ligands coordinates with a nitrogen atom and a carbon atom) preferably, represented by formula (2) can be cited. (In the formula, X represents an atom group that forms an aromatic chelate ligand together with a carbon atom and a nitrogen atom bonded with iridium, n is an integer of 2 or 3, and L represents a bidentate organic ligand wherein the atoms other than carbon atoms are bonded with iridium.) The light-emitting body of the invention contains red (R), green (G) and blue (B) wavelength components to be wide in the color reproduction range, can be driven with a single power supply and control system, and does not cause photo-deterioration of constituent members.

Provided is an organic EL element configured to have at least one organic layer including a light emitting layer interposed between a positive electrode and a negative electrode, in which the light emitting layer contains an iridium complex compound represented by any one of formulas (1) to (4), and the maximum emission wavelength of the iridium complex compound is 470 nm or less.

Provided is an organic light-emitting device that shows high luminous efficiency even when driven at a high luminance. More specifically, provided is an organic light-emitting device, including: an anode (transparent electrode layer) and a cathode (metal electrode layer); and an organic compound layer being interposed between the anode and the cathode, and including an emission layer, in which: the emission layer has a host, a first dopant, and a second dopant; the host includes an aromatic hydrocarbon compound; the first dopant includes a phosphorescent iridium complex; and the second dopant includes a compound having two triarylamine structures.

The invention belongs to the technical field of organic electroluminescence, and in particular relates to iridium complexes containing a guanidine group ligand and application of the iridium complexes to the preparation of electroluminescent devices. The compounds have the advantages that: the compounds are easy to prepare and low in cost, have high electroluminescent properties, and can be further used as luminescent layers of organic electroluminescent devices, and high-performance electroluminescent devices with the emission spectra covering a green light area and a red light area are obtained and can be used in application fields of illuminating sources, signal lamps, alphanumeric displays, signposts, photoelectric couplers, flat panel displays and the like.

To provide a long-lifetime organometallic iridium complex exhibiting yellow light emission with high emission efficiency as a novel substance. The organometallic iridium complex includes a ligand in which an unsubstituted phenyl group is bonded to each of the 2-position and the 5-position of pyrimidine. The organometallic iridium complex has a structure represented by General Formula (G1).

The invention discloses a high-tech health-care titanium ceramic material. The material consists of the following components in percentage by weight: 0.1 to 2 percent of titanium oxide, 84.572 to 87.605 percent of zirconium oxide, 4.622 to 4.758 percent of iridium oxide, 1.962 to 2.088 percent of aluminum oxide, 2.156 to 2.463 percent of silicon oxide, 1.716 to 2.364 percent of hafnium oxide, 0.132 to 0.206 percent of magnesium oxide and 1.435 to 1.811 percent of other oxides. Negative ions and far infrared rays produced by the material are far more than those of the ordinary zirconium oxide ceramic product and the metabolism and blood circulation of a human body are promoted.

The invention discloses a novel cyclometalated iridium (III) complex and a preparation method and an application thereof in living cell mitochondria dyeing. A cationic portion of the novel cyclometalated iridium (III) complex has the structural formula represented by the formula I. The synthesized cyclometalated iridium (III) complex is stable in structure, good in photophysical and photochemical properties and low in cytotoxicity, exhibits a good mitochondrial targeting function, and is a novel living cell mitochondria two-photon fluorescent probe. A study indicates that the complex has the optical stability and the two-photon absorption cross section which are obviously superior to those of commercial mitochondrial dyes, and is a potential excellent two-photon mitochondrial dye.

The invention discloses a red to near-infrared phosphorescent iridium complex light-emitting material and application thereof to an electroluminescent device, belongs to the technical field of organic electroluminescence, and particularly relates to a dark red to near-infrared phosphorescent iridium complex light-emitting material with a 1-phenyl quinoline derivative as a first ligand and an amidino-guanidyl derivative as an auxiliary ligand. The general formula of a compound of the material is shown as follows. The red to near-infrared phosphorescent iridium complex light-emitting material is doped in a main material as a phosphorescent object to form a light-emitting layer of the organic electroluminescent device. The compound has the advantages that the preparation process is simple, and the manufactured electroluminescent device is high in efficiency and long in service life. The device can be used in the application fields of panel display, illumination, light sources and the like. The formula is shown in the description.

The invention relates to catalyst for preparing crotyl alcohol from gas-phase crotonaldehyde through selective hydrogenation and a preparation method thereof, wherein the carrier of the catalyst is one of TiO2, ZrO2 and ZnO; the active ingredient of the catalyst is a Ir-Ir3+ mixture and the mass percentage content thereof in terms of Ir is 0.5-5%; the Ir-Ir3+ mixture is loaded on the carrier and coexists as metal Ir and IrC13; and the atomic ratio of the Ir element to the Cl element in the catalyst is 1.0-1.5. The preparation method of the catalyst comprises the following steps of: firstly drying the carrier TiO2, ZrO2 or ZnO in vacuum at first, and then adding the carrier to H2IrC16 solution for soaking at the room temperature; next, evaporating the liquid to dryness in a water bath, thereby obtaining powder after drying, and then reducing the obtained powder through reduction using hydrogen, thereby obtaining the catalyst. The catalyst is high in catalytic efficiency, and good in reaction selectivity and reaction stability.

The invention discloses a benzofuran-containing organic iridium complex and a preparation method thereof, and a photoelectric device, and belongs to the technical field of luminescent materials, the structural general formula of the organic iridium complex is shown in the specification, in the formula, R1 and R2 are respectively independently represented as mono-, di- or non-substituent group; R3and R4 are independently represented as mono-, di-, tri-, tetra- or non-substituent; R5, R6 and R7 each independently represent a single substituent or no substituent; and R1, R2, R3, R4, R5, R6 and R7 are each independently at least one of hydrogen, deuterium, halogen, cyano, substituted or unsubstituted C1-C8 alkyl, substituted or unsubstituted C3-C15 cycloalkyl, substituted or unsubstituted C6-C18 aryl, and substituted or unsubstituted C4-C12 aromatic heterocyclic groups. The organic iridium complex can significantly reduce the driving voltage of the photoelectric device, significantly improve the current efficiency and power efficiency of the photoelectric device and prolong the service life of the photoelectric device.

The invention discloses an aggregation-induced luminescent and piezochromism luminescent double-characteristic ion-type iridium (III) complex near-infrared luminescent material. The ion-type iridium (III) complex comprises C-N cyclic metal ligand comprising a 2-phenylpyridine derivative, N-N auxiliary ligand of aryl pyrazine[2,3-f][1,10] phenanthroline of an electron donar-receptor (D-A) unit structure and halogen-comprising anions. The material is extremely weak in luminescence at a solution state and capable of emitting high near-infrared rays at an aggregation state and under the pressure,and can be widely applied to near-infrared electroluminescence devices and stress sensors.

The invention discloses a water-soluble phosphorescent polymer for detecting pH by a ratio method as well as a preparation method and application thereof. The polymer consists of two iridium complexes(Ir1, Ir2) and polyvinylpyrrolidone, wherein the Ir1 is a reference complex and does not respond to pH; the Ir2 can specifically respond to pH, and the luminous intensity of the Ir2 is weakened alongwith reduction of pH; and the polyvinylpyrrolidone gives high water solubility and biocompatibility to the polymer. The luminous intensity and the emitting life of the water-soluble phosphorescent polymer P disclosed by the invention are reduced along with reduction of pH, so that the pH of a cell is detected through confocal imaging; and the water-soluble phosphorescent polymer is a phosphorescent probe integrating excellent water solubility and biocompatibility and has important application prospect in aspects of biological imaging and sensing.

The invention discloses a preparation method of a photoelectrochemical biosensor based on a cyclometalated iridium complex and application of the photoelectrochemical biosensor to thrombin detection.The biosensor uses the visible light-excited iridium complex as a photoelectrically active material, and the iridium complex is located on colloidal gold to prepare a gold nanometer signal probe. Capturing hairpin DNAs are immobilized on a modified ITO electrode to prepare a working electrode of the biosensor. A thrombin recognition system includes a specific recognition hairpin HP1 and an adjuvant hairpin HP2; in the presence of thrombin, a large number of secondary targets T-DNAs are released under the action of the excision enzyme ExoIII and hybridize with the capturing hairpin DNAs on theworking electrode so as to capture the gold nanometer signal probe, thereby realizing response to photocurrent signals; thrombin with different concentrations allows the amount of the signal probe connected to the working electrode to be different, so photocurrent intensities are different, and thus, quantitative detection of thrombin is realized. The method has the advantages of high sensitivityand good selectivity.

Provided as a novel substance is a long-lifetime organometallic iridium complex emitting yellow light with high emission efficiency. The organometallic iridium complex is represented by General Formula (G1) and has a structure in which a phenyl group whose 2-position and 6-position are each substituted by an alkyl group is bonded to the 4-position of pyrimidine. In General Formula (G1), R1 and R2 each independently represent a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms.