18 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 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 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.

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.

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 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.

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 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.

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).