30 results about "Excimer" patented technology

The invention provides a compound with an electron transmission function, an organic electroluminescent device containing the compound and application of the compound, the structure of the compound takes 9-alkyl-9-phenyl fluorenyl, phenanthryl and a triazine group as main components, the 9-alkyl-9-phenyl fluorenyl is one of core structures, fluorene is a polycyclic aromatic hydrocarbon with better planarity, and the triazine group is one of the core structures. Alkyl and phenyl are introduced to the ninth site to generate strong spatial repulsive force with a fluorene ring, a three-dimensional and non-planar propeller-shaped structure is formed, and the non-planar structure can effectively inhibit close packing of molecules in a solid state, so that concentration quenching and excimer formation caused by pi-pi packing are prevented, and the stability of the fluorescent probe is improved. And moreover, the rigid and non-planar structure can also effectively improve the thermal stability of the material, and the service life of the device is prolonged. The compound provided by the invention is used as an electron transport layer and a hole blocking layer in a light-emitting device, so that the device has low driving voltage, high luminous efficiency and long service life.

The invention belongs to the field of electroluminescence, and particularly discloses an organic electroluminescent device and a display device. The organic light-emitting device comprises a light-emitting layer, and the light-emitting layer comprises a boron-nitrogen compound as a light-emitting guest material, wherein the structural formula of the boron-nitrogen compound is shown in a formula I; formula I; according to the present invention, the specific boron-nitrogen compound is adopted as the light-emitting guest material of the device light-emitting layer, and on the basis of the rigid structure, the specific boron-nitrogen compound increases the molecular conjugation and induces the intermolecular pi-pi interaction so as to produce the excimer emission; the monomolecular double emission spectrum can cover blue light and yellow light areas, so that the problems of intermediate phase separation and poor color purity stability of different luminescent materials in the prior art are solved. The organic light-emitting device prepared by adopting the specific boron-nitrogen compound has the characteristics of high external quantum efficiency, small device efficiency roll-off and good color purity stability, and further development of a WOLED (White Organic Light-Emitting Diode) device is facilitated.

The application discloses an annealing device, a detection method thereof, an annealing equipment and an annealing process method. The annealing device of one embodiment is applied to an excimer laser annealing equipment. The annealing device comprises a bearing table used for bearing and moving a display substrate to be processed, wherein the bearing table comprises a carrier table with a long side and a short side; an annealing chamber with a cavity is arranged above the carrier table, the annealing chamber comprises a bottom wall close to one side of the carrier table and a top wall arranged opposite to the bottom wall and away from the carrier table, a slit is arranged on the bottom wall, and the slit is parallel to the long side in the extension direction of the orthographic projection of the carrier table; an optical lens group is arranged on the top wall away from the cavity and is used for transmitting a laser beam emitted by a laser emitter; and a shielding piece is arranged in the cavity and above the slit, and the orthographic projection of the bottom wall and the orthographic projection of the slit on the bottom wall form partial overlap or complete overlap.

The application provides a compound with an electron transport function, an organic electroluminescent device containing the same and application, the structure of the compound mainly comprises a 9-alkyl-9-phenylfluorenyl group, a phenanthryl group and a triazine group, the 9-alkyl-9-phenylfluorenyl group is one of the core structures, the fluorene itself is a condensed ring aromatic hydrocarbon with good planarity, the alkyl group and the phenyl group introduced at the 9th position generate strong steric repulsion with the fluorene ring itself, forming a three-dimensional, non-planar 'propeller' structure, the non-planar structure can effectively inhibit the close packing of molecules in a solid state, thereby preventing concentration quenching and formation of an excimer caused by pi-pi stacking, achieving higher solid-state light-emitting efficiency, and the rigid, non-planar structure can also effectively improve the thermal stability of the material and improve the service life of the device. The compound of the application can be used as an electron transport layer and a hole blocking layer in a light-emitting device, so that the device has low driving voltage, high light-emitting efficiency and long service life.

1. The name of the design product: the main body of excimer germicidal lamp. 2. The use of the design product: the whole product and local use are used as hand-held excimer germicidal lamp for sterilization, skin disease treatment and infection control, etc. 3. The design points of the design product: the shape of the solid line part. 4. The picture or photo that best shows the design points: Fig. 1. 5. Other circumstances that need to be explained: the design requests local design protection, the solid line part represents the local part that is required to be protected, and the dashed line part represents the part that is not required to be protected.

The invention provides a liquid atomic-scale coating method, and relates to the technical field of coating. And uniform adsorption and reaction activity of precursor molecules are ensured through surface treatment of the substrate. Then, the diluted liquid precursor forms a uniform monomolecular layer through a coating process and the like, and precursor molecules are cracked at room temperature through a 172nm excimer ultraviolet light source to generate a first active species; reaction gas is selectively introduced according to the type of the target thin film, the reaction gas is subjected to a cracking reaction under irradiation of a 172 nm excimer ultraviolet light source to generate a second active species, the second active species and the first active species are subjected to a chemical reaction, and the target thin film material is formed. Through repeated circulation, layer-by-layer growth of the thin film and precise control over the atomic-scale thickness are achieved. According to the physical-chemical self-limited liquid phase deposition mechanism, atomic-scale uniform deposition of the thin film becomes possible, and the limitation of traditional gas phase ALD in the aspects of precursor selection, equipment complexity and process temperature is solved.

The present invention discloses a fluorescent probe containing a pyrene group, and its preparation method and application. The fluorescent probe described in the present invention is a ratiometric fluorescent molecule that binds to protamine through electrostatic interaction to induce the emission of an excimer. The addition of trypsin can hydrolyze the protamine, and the fluorescence can be restored to monomer emission, thereby enabling the detection of trypsin. In addition, the probe forms a host-guest complex system with γ-cyclodextrin, exhibiting the fluorescence emission of the excimer. Based on the hydrolysis of cyclodextrin by α-amylase, the fluorescence can be restored to monomer emission, thereby enabling the quantitative detection of α-amylase. The present invention provides a multifunctional fluorescent detection probe with excellent selectivity and sensitivity, which can be used in a diluted serum environment.

The application provides an excimer acceptor material based on a nitrogen heterocycle, a preparation method and application thereof, and belongs to the technical field of organic photoelectric materials. Two excimer acceptor materials are synthesized by combining 2-phenyl-4,6 di(4-pyridine)-1,3,5-triazine with spirobifluorene and pyridine. The synthesis method is simple, the yield is high, and the excimer acceptor material has good electrochemical stability. The spirobifluorene is added to improve the molecular rigidity, reduce non-radiative transition and reduce efficiency roll-off. The pyridine is added to deepen the LUMO level, which is conducive to the development of red excimer OLED. The synthesized excimer acceptor material is combined with a donor material to form an excimer, which is used as a light-emitting layer of an organic electroluminescent device. The excimer can realize yellow light and orange red light emission, has a high external quantum efficiency, and the highest external quantum efficiency can reach 11.5%. The excimer has a wide application prospect and can be widely applied in the fields of flat panel display and solid state lighting.

Provided is a light-emitting element having high external quantum efficiency. The invention provides a light-emitting element with a long service life. Provided is a light-emitting element including a light-emitting layer including a phosphorescent compound, a first organic compound, and a second organic compound between a pair of electrodes, in which a combination of the first organic compound and the second organic compound forms an exciplex. The light-emitting element transfers energy by using the overlap between the emission spectrum of the exciplex and the absorption spectrum of the phosphorescent compound, and thus has high energy transfer efficiency. Consequently, a light-emitting element having high external quantum efficiency can be realized.

This invention discloses a circularly polarized excimer luminescent molecule, luminescent material, and their preparation methods and applications. The circularly polarized excimer luminescent molecule of this invention has the structural formula shown in formula (I) or formula (II): In formulas (I) and (II), R is a polycyclic aromatic hydrocarbon group containing a π-conjugated system. Compared to single-module and dual-module designs, the circularly polarized excimer luminescent molecule obtained by the helical self-locking molecular design of this invention exhibits stable luminescence, independent of both solution concentration and solvent type; and using a helical self-locking strategy, a chiral pyrene ring was successfully constructed using pyrene as a model, exhibiting stable excimer emission and CPEE performance in solution and various assemblies.

This application provides a liquid atomic-level deposition method, relating to the field of deposition technology. Surface treatment of the substrate ensures uniform adsorption and reactivity of precursor molecules. Subsequently, the diluted liquid precursor is coated to form a uniform monolayer, and the precursor molecules are cleaved at room temperature using a 172nm excimer ultraviolet light source to generate a first active species. Depending on the type of target thin film, a reactive gas is selectively introduced. Under irradiation with the 172nm excimer ultraviolet light source, the reactive gas undergoes a cleavage reaction to generate a second active species. The second active species reacts chemically with the first active species to form the target thin film material. Through repeated cycles, layer-by-layer growth and precise atomic-level thickness control of the thin film are achieved. This self-constrained "physical-chemical" liquid-phase deposition mechanism enables atomically uniform deposition of thin films, overcoming the limitations of traditional gas-phase ALD in terms of precursor selection, equipment complexity, and process temperature.

Complexes and devices, such as organic light emitting devices and full color displays, including a compound of the formula:wherein:M is Pd2+, Ir+, Rh+, or Au3+;each of V1, V2, V3, and V4 is coordinated to M and is independently N, C, P, B, or Si;each of L1, L2, L3, and L4 is independently a substituted or unsubstituted aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, carbene, or N-heterocyclic carbene; andZ is O, S, NR, CR2, SiR2, BR, PR, where each R is independently substituted or unsubstituted C1-C4 alkyl or substituted or unsubstituted aryl.

A laser processing device and a laser processing method that are capable of forming a high-quality semiconductor film are provided. An ELA device (excimer laser annealing device) (1) includes a laser oscillator (10) that generates laser light for forming a polysilicon film by irradiating an amorphous silicon film over a substrate to be processed with the laser light, a pulse measuring instrument (100) for detecting first partial light and second partial light contained in the laser light, and a monitoring device (60) for comparing a detection result of the first partial light with a detection result of the second partial light.

Provided is a light-emitting element having high external quantum efficiency. The invention provides a light-emitting element with a long service life. Provided is a light-emitting element including a light-emitting layer including a phosphorescent compound, a first organic compound, and a second organic compound between a pair of electrodes, in which a combination of the first organic compound and the second organic compound forms an exciplex. The light-emitting element transfers energy by using the overlap between the emission spectrum of the exciplex and the absorption spectrum of the phosphorescent compound, and thus has high energy transfer efficiency. Consequently, a light-emitting element having high external quantum efficiency can be realized.

An organic light emitting device and a device including the same are provided. The organic light emitting device includes a first electrode, a second electrode facing the first electrode, and an organic layer between the first electrode and the second electrode and including an emission layer, wherein the emission layer includes a host and a dopant, the host includes a first compound and a second compound, and the first compound, the second compound, and the dopant are different from each other. The two compounds included in the host in the emission layer can have different HOMO and LUMO energy levels, and can form an excimer, and a difference (△E 激基复合物 ) between a HOMO energy level and a LUMO energy level of the excimer can be greater than a difference (△E 掺杂剂 ) between a HOMO energy level and a LUMO energy level of the dopant.

The present invention discloses a kind of excimer ratio fluorescent probe, preparation method and application that can be used for high-selectivity lysosomal polarity imaging in cells, and the fluorescent probe is recorded as Lyso-PRG, and only one-step reaction is required to prepare it, and its synthetic raw materials are easy to obtain, simple to operate, and easy to promote. The fluorescent probe is applied to prepare ratio-type lysosomal intracellular polarity change detection reagent or detection element. The fluorescent probe of the present invention pioneered the use of monomer-excimer imaging mechanism for the design of lysosomal polarity imaging probe, and then the obtained fluorescent probe shows extremely low background noise, ultra-high Stocks shift (130nm) and dual-color ratio fluorescence properties; and based on the basis of the fluorescent probe, by introducing quaternary amine positive charge structure, it can be avoided to be combined with lipid membrane and fat droplet, showing excellent lysosomal selectivity, and then in the sensitivity, resolution and accuracy of lysosomal polarity detection, it shows significant advantages, and it has broad application prospects in lysosomal polarity-related pathological research, drug efficacy evaluation and new drug research and development fields.

Provided is a light-emitting element having high external quantum efficiency. The invention provides a light-emitting element with a long service life. Provided is a light-emitting element including a light-emitting layer including a phosphorescent compound, a first organic compound, and a second organic compound between a pair of electrodes, in which a combination of the first organic compound and the second organic compound forms an exciplex. The light-emitting element transfers energy by using the overlap between the emission spectrum of the exciplex and the absorption spectrum of the phosphorescent compound, and thus has high energy transfer efficiency. Consequently, a light-emitting element having high external quantum efficiency can be realized.

The application belongs to the field of organic electroluminescent materials, and relates to a kind of blue fluorescent material, and specifically relates to a kind of excimer donor material based on tri(triazole)triazine and application. With triazolotriazine and its derivatives as electron acceptor, acridine as electron donor, a kind of new excimer donor material is synthesized. Because the tri(triazole)triazine core is planar, the material has good electron transport capacity, and is conducive to better realization of intermolecular charge transfer with acceptor material molecules, and then higher efficiency excimer is obtained. The application discusses the relationship between molecular structure and performance in detail, and has important significance for constructing new excimer donor material.

Provided is a method for manufacturing a laser cavity and electronic device. A laser cavity of an excimer laser device has a container that contains a first member and a second member, and internally houses a laser gas; and a ring-shaped sealing member that is disposed between two opposing sealing surfaces of the first member and the second member, a surface of the sealing member on the laser gas side is composed of fluorine rubber, a surface of the sealing member on the atmosphere side is composed of a film that inhibits the passage of the atmosphere, and the film has a thickness that is thicker at a position away from the two sealing surfaces and is thinner at a position close to the two sealing surfaces.

The present application relates to the excimer luminescent material based on gold complex acceptor and its application. The excimer luminescent material is constructed by gold complex acceptor material and organic donor material, which is applied in organic light emitting diode, has lower driving voltage and higher luminescent efficiency, and can improve the service life of the device, and has potential application in the field of organic electroluminescent device. The present application also provides an organic electroluminescent device, which comprises a cathode, an anode and an organic layer, the organic layer is one or more of a hole injection layer, a hole transport layer, a light emitting layer, a hole blocking layer, an electron transport layer and an electron injection layer, and at least one layer of the organic layer contains a compound in structural formula (I) and (II).

The application belongs to the field of electroluminescence, and specifically discloses an organic electroluminescent device and a display device. The organic electroluminescent device comprises a light-emitting layer, and the light-emitting layer comprises a boron-nitrogen compound with a structural formula as shown in Formula I as a light-emitting guest material. Formula I; the application proposes a specific boron-nitrogen compound as a light-emitting guest material of a light-emitting layer of a device. On the basis of a rigid structure, the specific boron-nitrogen compound increases molecular conjugation and induces intermolecular π-π interaction, thereby producing excimer emission. This single-molecule double-emission spectrum can cover the blue light and yellow light regions, thereby solving the problems of intermediate phase separation among different light-emitting materials and poor color purity stability in the prior art. The organic electroluminescent device prepared by using the specific boron-nitrogen compound has the characteristics of high external quantum efficiency, small device efficiency roll-off and good color purity stability, and is more conducive to the further development of WOLED devices.

A series of functionalized imidazophenthridine analogue-based blue phosphorescent emitters have been designed, where bulky substituents (e.g., tetrabutyl, phenyl, mesityl, triisopropylbenzene, etc.) are introduced on an imidazophenthridine fragment of the emitters. Bulky substituents may suppress potential excimer formation, as well as improve the solubility of the complexes. This class of emitters may be utilized in luminescent labels, emitters for organic light emitting devices, and lighting applications.

The application discloses a light oil fraction rapid analysis method and system, comprising the following steps: performing chromatographic rapid analysis on multiple light fraction oil samples to obtain original spectrograms and label information; analyzing the multiple light fraction oil samples to establish a standard molecular library of light oil fractions; using the original spectrograms and the label information, constructing a data set, and establishing a gasoline type classifier model; taking a sample to be analyzed to perform chromatographic rapid analysis to obtain a new sample chromatogram, inputting the new sample chromatogram into the gasoline type classifier model to determine the type of the sample to be analyzed; finding similar samples close to the sample to be analyzed in the standard molecular library through a centroid method to obtain a matching molecular library and matching characteristic molecules of the type corresponding to the sample to be analyzed; constructing an optimization model to determine the positions of normal alkane peaks and characteristic molecule peaks in the sample to be analyzed; calculating the retention indexes of all molecules in the sample to be analyzed, identifying the molecules, and outputting a molecular identification result.

The present invention relates to preparation and application of a novel quadridentate platinum (II) complex, and belongs to the field of OLED organic electroluminescent materials. The complex of the present invention has NCNC chelating coordination, a stable structure, a spiro ring structure in the skeleton, a strong molecular stereoscopic property, and weak intermolecular interaction, so that mutual stacking between complex molecules is avoided, the formation of an excimer is greatly inhibited, and thus the efficiency of an OLED device is improved. The complex of the present invention has high fluorescence quantum efficiency, great thermal stability and low quenching constant, and can be used for manufacturing a red-light OLED device with high luminescence efficiency and low roll-off.

The present disclosure provides an excimer laser annealing device and a method for preparing a polysilicon film. The device comprises: a substrate support for carrying a substrate to be processed; a laser unit for emitting a laser beam to a carrying surface of the substrate support, and the laser beam has an extension length along a first direction, and the first direction is parallel to the substrate to be processed; the substrate to be processed comprises a first side edge and a second side edge arranged adjacently, and the substrate to be processed is arranged on the substrate support in a manner that the first side edge is inclined to a reference direction, and the reference direction is perpendicular to the first direction and parallel to a plane defined by the first direction and the substrate to be processed; and the substrate support is capable of moving relative to the laser beam along a second direction, and the second direction is a vector direction inclined to both the first direction and the reference direction. The excimer laser annealing device and the method for preparing a polysilicon film can improve the utilization rate of the substrate.

A mixture comprising two host materials (a first host material H1 and a second host material H2) capable of forming an exciplex and two emitters (a first emitter E1 and a second emitter E2) wherein the first emitter E1 is an MR-TADF material and the absorption spectrum of the second emitter E2 and the emission spectrum of the first emitter E1 at least partially overlap each other; therefore, effective resonance energy transfer is achieved between the two light-emitting bodies. The first illuminant E1 is preferably selected from a first host material H1, the second illuminant E2 is preferably selected from an MR-TADF material, and the half-peak width of the luminous spectrum of the second illuminant E2 is smaller than or equal to 40 nm. The invention further discloses a composition (printing ink) containing the first host material H1, the second host material H2, the first illuminant E1 and the second illuminant E2, and a technical option is provided for OLED printing. The invention further discloses a photoelectric device, especially an organic electroluminescent device, the luminescent layer of which contains the mixture, and the organic electroluminescent device according to the invention has both high luminous efficiency and long device life.

The invention relates to a preparation method of a molybdenum-rhenium alloy superconducting thin film and a micro-nano device application thereof. The preparation method comprises the following steps: (1) providing a substrate, and placing the substrate in a vacuum cavity of pulse laser deposition equipment; (2) a molybdenum-rhenium alloy target material is provided, the weight ratio of molybdenum to rhenium in the components of the target material is (70-80): (30-20), and the purity of the target material is not lower than 99.95%; (3) pumping the background vacuum degree of the vacuum cavity to be less than or equal to 1 * 10 <-5 > Pa, or introducing inert gas until the working air pressure is 0.5-20 Pa; (4) ablating the molybdenum-rhenium alloy target material by adopting an excimer laser with the wavelength of 200-300nm, wherein the laser energy density is 1-5J / cm, the pulse frequency is 1-20Hz, and the target-substrate distance is 30-50mm; (5) depositing on the substrate to form a molybdenum-rhenium alloy superconducting thin film, wherein the distance between the target material and the substrate is 35-50 mm in the deposition process; the substrate is kept to be not heated or the temperature is lower than 100 DEG C, and the molybdenum-rhenium alloy superconducting thin film with the thickness ranging from 50 nm to 100 nm is obtained.

A method for producing a decorative surface comprises the step of providing a carrier comprising a coating layer (21) having a macrostructure. The macrostructure comprises embossments (25). The method comprises the step of applying a lacquer layer (50) onto the coating layer (21). The lacquer layer (50) comprises at least components comprising radiation curable double bonds. The method comprises the step of submitting the lacquer layer (50) to excimer radiation (52), thereby providing the decorative surface with a microstructure. The microstructure is provided by a wrinkled surface of the lacquer layer (50), while maintaining a macrostructure provided by the embossments (25).

A decorative sheet (1) includes: a base material (2); and a surface layer (3) located on the base material (2). The surface layer (3) is composed of a continuous layer (4) and a dispersion (5), the continuous layer (4) being composed of an ultraviolet-cured layer (6) located on a surface (2a) of the base material (2) and an excimer light-cured layer (7) located on a surface (6a) of the ultraviolet-cured layer (6), and the dispersion (5) being dispersed in the continuous layer (4) and composed of either or both of organic particles and inorganic particles. The standard deviation σ [μm] of the surface roughness Sa of the opposite surface (3a) of the surface layer (3) from the base material (2) divided by the thickness T [μm] of the continuous layer (4) is 7% or less.

The application discloses an excimer type circularly polarized luminescent material and a preparation method thereof. The excimer type circularly polarized luminescent material is composed of a pair of chiral excimer donor and acceptor molecules. The donor is a molecule DMG prepared by covalently connecting N, N-dimethylaniline as a head group with a chiral glutamine derivative through an amide bond. The acceptor is a molecule PG prepared by covalently connecting pyrene as a head group with a chiral glutamine derivative through an amide bond. The application covalently connects a pair of classic excimer N, N-dimethylaniline and pyrene with a long-chain chiral glutamine derivative respectively to design an excimer donor-acceptor pair. With the aid of a supramolecular co-assembly strategy, the material with the excimer type circularly polarized luminescent property is obtained.