18 results about "Ir element" patented technology

The application discloses an iridium oxide modified fluorine-doped tin oxide electrode and a preparation method and application thereof. The electrode comprises a light-transmitting fluorine-doped tin oxide conductive glass substrate and an in-situ attached iridium oxide nano-modified layer. The preparation method comprises the following steps: preparation and aging of a precursor solution, alternating current electrochemical deposition, annealing and cleaning, and laser patterning treatment. The application further discloses a cell impedance sensor organ chip system comprising the electrode and application of the system in in-vitro drug screening. The application utilizes the low cost and light-transmitting property of the fluorine-doped tin oxide and the excellent charge injection capacity of the alternating current deposited iridium oxide nano layer to greatly reduce the interface impedance. The scheme meets the in-situ optical observation, realizes the high-sensitivity biological impedance monitoring comparable to gold electrodes, effectively solves the problems of high cost and complex process of the existing organ chip electrode, and is very suitable for popularization and application as a disposable high-throughput consumable.

The present application relates to a metal iridium complex and an organic electroluminescent device. The metal iridium complex has a general formula of Ir(La)(Lb)(Lc), the structure thereof being shown as a formula (1). The metal iridium complex provided by the present application has the advantages of low evaporation deposition temperature, high optical and electrochemical stability, narrow half-peak width, high color saturation, high light-emitting efficiency, long device service life and the like. Therefore, the metal iridium complex can be used in organic light-emitting devices, particularly used as a red light-emitting phosphorescent material, and has the possibility of being applied to the AMOLED industry.

The purpose of the present invention is to provide a reflective mask blank having an absorber film that has a low refractive index n for EUV light, a high extinction coefficient k for EUV light, and excellent SPM resistance. An absorber film (18) of a reflective mask blank (10) contains palladium and at least one element X selected from the group consisting of ruthenium, iridium, and platinum. The total content of palladium and the element X in the absorber film (18) is 80 at% or more with respect to the total metal atoms contained in the absorber film (18). When the element X is only ruthenium, the content of the element X in the absorber film (18) is 20-75 at% with respect to the total atoms in the absorber film (18). When the element X contains at least one of iridium or platinum, the content of the element X in the absorber film (18) is 30 at% or more with respect to the total atoms in the absorber film (18).

This invention relates to the field of YAG crystal growth technology, specifically a method and apparatus for rapid YAG crystal growth. The growth method includes the following steps: S1, placing the raw material in an iridium crucible, where the raw material is completely melted to form a melt; S2, slowly lowering a seed crystal to the surface of the melt, maintaining a stable temperature after contact with the melt, allowing the end of the seed crystal to melt and form a stable interface with the melt; S3, then obtaining the YAG crystal through a rotation-pulling method, sequentially performing crystal pulling, necking, shoulder formation, constant diameter growth, and tailing. The YAG crystal prepared by this invention exhibits better neodymium ion doping, resulting in improved laser power of the prepared laser crystal.

The application discloses a method for improving nucleation density of large-size single crystal diamond hetero-epitaxy based on iridium-amorphous carbon pre-implantation layer, which comprises the following steps: firstly, pretreating a single crystal silicon substrate through acid washing, acetone or ethanol ultrasonic cleaning method; sequentially epitaxially growing a nanometer-thickness yttrium stabilized zirconium oxide (YSZ) single crystal film buffer layer and an iridium single crystal film functional layer on the treated single crystal silicon surface; then, pre-implanting an amorphous carbon film on the surface of the iridium / YSZ composite substrate, and performing vacuum annealing stress relief and polishing graphite phase large particle removal treatment on the amorphous carbon film to obtain a smooth and flat surface; finally, epitaxially growing single crystal diamond on the surface of the iridium-amorphous carbon pre-implantation layer, and cutting and removing the composite substrate to obtain large-size single crystal diamond hetero-epitaxy. The method utilizes the amorphous carbon implantation layer to accelerate the dissolution-precipitation process of carbon ions entering the iridium film to form a supersaturated solid solution during bias nucleation, increases nucleation sites, and improves nucleation density, which is of great significance for preparing large-size high-quality single crystal diamond.

Provided is a light-emitting element with high emission efficiency. The light-emitting element includes a first organic compound, a second organic compound, and a guest material. The LUMO level of the first organic compound is lower than that of the second organic compound, and the HOMO level of the first organic compound is lower than that of the second organic compound. The LUMO level of a guest material is higher than that of the first organic compound, and the HOMO level of the guest material is lower than that of the second organic compound. The guest material has a function of converting triplet excitation energy into light emission. The first organic compound and the second organic compound form an exciplex.

This invention belongs to the field of pharmaceutical chemistry technology, specifically relating to a near-infrared II luminescent iridium(III) complex photosensitizer, its preparation method, and its application. The near-infrared II luminescent iridium(III) complex photosensitizer disclosed in this invention generates singlet oxygen (…) under 550 nm illumination. 1 O2), hydroxyl radicals (•OH), superoxide anions (O2) •‑ We evaluated the antitumor activity of near-infrared luminescent iridium complexes using mouse breast cancer cells (4T1). Under unilluminated conditions, the near-infrared II luminescent iridium(III) complex photosensitizers showed no significant cytotoxicity to 4T1 cells, while under illumination, they exhibited good phototoxicity to 4T1 cells, with an IC50 value of [missing value]. 50 The concentration is 15.92 μM. We have invented a near-infrared II luminescent iridium(III) complex photosensitizer, which has excellent photoimmunodynamic therapeutic effects and will have important application prospects in the treatment of hypoxic tumors.

This application relates to the field of metal material processing technology, specifically to a method for preparing ultra-precision platinum-iridium C-rings for developing. The method of this invention first prepares a tube blank, then uses a laser to segmentally cut the surface of the platinum-iridium alloy tube to form grooves. After cutting, the entire tube is heat-treated at a low temperature, and then the C-ring is cut. Finally, plasma polishing is used to remove surface impurities and burrs to obtain the finished C-ring. This invention overcomes the limitations of existing technologies that require specialized equipment for C-ring preparation, avoids the opening of the C-shaped ends due to stress release after heat treatment, and solves problems such as difficulty in removing burrs after cutting and low production efficiency. It provides a simple, efficient, and suitable-for-large-scale mass production technology for preparing ultra-precision platinum-iridium C-rings for developing, resulting in excellent surface quality and precise dimensions.

This invention belongs to the field of biosensors and electrochemiluminescence (ECL) detection technology, and discloses an electrochemiluminescence sensor based on a UiO-67 confined single-site iridium complex, its construction method, and applications. The system uses zirconium-based metal-organic framework (MOF) material UiO-67 as a carrier, and iridium(III) bridging compounds are bonded through coordination to construct an in-situ Ir@UiO-67 nano-signal probe with high ECL activity. This probe is labeled with P-tau 181 secondary antibody to obtain an Ab2-Ir@UiO-67 complex. Simultaneously, a boron-doped diamond electrode modified with a gold film is used as the substrate electrode, and P-tau 181 primary antibody is immobilized to construct a specific recognition interface. A highly sensitive electrochemiluminescence sensing platform is then assembled via a sandwich immunoassay. This invention improves upon the bottleneck problems of poor water solubility and easy aggregation and quenching of traditional iridium complexes through MOF coordination anchoring and pore spatial confinement effects, achieving ultrasensitive quantitative detection of P-tau 181. It exhibits excellent specificity, reproducibility and stability in plasma samples.

This utility model relates to the field of interventional tumor diagnostic and treatment medical device technology, and discloses an umbrella-shaped anchored tumor marker and its implantation system. The umbrella-shaped anchored tumor marker includes an umbrella-shaped anchoring system composed of multiple umbrella ribs with shape memory properties. The proximal ends of the ribs converge to form an axial central tube. The surface of the ribs has micro-barb structures formed by laser etching. The umbrella-shaped anchoring system remains in a contracted state at temperatures below body temperature and autonomously unfolds into a three-dimensional umbrella-shaped anchoring form at body temperature. In this utility model, the distal end of the umbrella ribs integrates a platinum-iridium alloy imaging tip with gradient stiffness (rigid at the proximal end and flexible at the distal end). The barbs are spaced along the length of the umbrella ribs. The shape memory alloy is in one state during delivery at room temperature and can self-unfold in vivo, achieving effective anchoring and imaging, thus aiding in tumor marking.

This invention relates to the fields of electrocatalytic materials and industrial electrochemistry, and discloses a composite coated titanium anode with an intermediate layer, its preparation method, and its application. The preparation method includes: titanium substrate pretreatment, electrochemical deposition of a gold intermediate layer, preparation of a manganese-doped iridium dioxide active coating solution, thermal decomposition coating, and repeated sintering steps. This invention utilizes a dual synergistic strategy of a gold intermediate layer and manganese-doped IrO2 to achieve dense coverage of the gold intermediate layer and in-situ growth of the manganese-doped IrO2 active layer in the same thermal decomposition process. The gold intermediate layer not only acts as a conductive and passivation-resistant barrier but also stabilizes high-valence manganese by inducing lattice strain. Manganese doping precisely regulates the electronic structure of Ir sites, significantly enhancing intrinsic activity. The anode prepared by this invention exhibits excellent performance in PEM electrolysis and copper plating tests. The preparation process of this invention is simple, cost-controllable, and compatible with existing production lines, and can be widely applied in PEM water electrolysis, electrolytic copper foil, and other electronic electroplating fields.

The application provides an organometallic iridium complex and application thereof, and the organometallic iridium complex has a structure as shown in formula I. The organometallic iridium complex with the structure shown in formula I is used as a doping material of a light-emitting layer of an organic electroluminescent device, so that the starting voltage of the device can be reduced, and the light-emitting efficiency and the service life of the device can be improved.

The application belongs to the technical field of organic photoelectric material, and discloses a kind of tricyclic metal iridium (III) complex containing viologen unit and a preparation method and application thereof, and the iridium (III) complex is composed of two ring metal C^N ligands with strong electron-withdrawing effect modification and a C^N ligand with electroactive viologen substituent group;Two ring metal C^N ligands are modified by electron-withdrawing group to regulate the orbital energy level of iridium (III) complex, reduce the emission energy, promote the near-infrared luminescence of the complex before electric stimulation, utilize the strong electron-withdrawing ability and reversible redox characteristics of viologen substituent group, combine the rich excited state properties of iridium (III) complex, under electric stimulation, the reversible redox reaction of iridium (III) complex occurs, and the electric stimulation phosphorescence response of the material is realized;With the electron-donating property of viologen unit after electric reduction, the transition mode of iridium complex is changed, and the C^N ligand containing viologen substituent group is forced to participate in the excited state transition, realizing the luminescence conversion from near-infrared light to visible light.

This invention discloses a near-infrared light-excited iridium complex, its preparation method, and its application in anti-breast cancer treatment, comprising the structure shown in formula (I): The complex of the present invention exhibits a strong inhibitory effect on the growth and proliferation of mouse breast cancer cells (IC50). 50 The concentration of the phototoxicity was 0.31 μM, while under dark conditions, its cytotoxicity was only 93.9 μM, and the phototherapy index (PI) was as high as 301. This is of great significance for the research of metal drugs for anti-tumor purposes such as breast cancer.

This invention relates to the field of pen tip processing technology and discloses an integrated device for iridium tip welding and post-weld visual online inspection, comprising a base; a pen tip vibratory feeder disposed on one side of the top of the base; a pen tip misalignment mechanism disposed on one side of the pen tip vibratory feeder; a pen tip shifting mechanism disposed on the top of the base; a welding mechanism disposed at the bottom of an electric clamp, the welding mechanism including an upper welding component and a lower welding component, a pin being vertically mounted inside the iridium pellet box, and a vent pipe being disposed on the top of the iridium pellet box; a camera inspection component disposed on the side of the welding mechanism away from the pen tip misalignment mechanism; a defective container disposed on one side of the camera inspection component; and a feeding component disposed on one side of the camera inspection component. This integrated device for iridium tip welding and post-weld visual online inspection effectively solves the problem in the prior art where high-speed automated production of iridium tip pellets after welding is difficult to achieve by relying on manual inspection.