344results about How to "Avoid quenching" patented technology

By doping an organic compound functioning as an electron donor (hereinafter referred to as donor molecules) into an organic compound layer contacting a cathode, donor levels can be formed between respective LUMO (lowest unoccupied molecular orbital) levels between the cathode and the organic compound layer, and therefore electrons can be injected from the cathode, and transmission of the injected electrons can be performed with good efficiency. Further, there are no problems such as excessive energy loss, deterioration of the organic compound layer itself, and the like accompanying electron movement, and therefore an increase in the electron injecting characteristics and a decrease in the driver voltage can both be achieved without depending on the work function of the cathode material.

A multicolor light-emitting element using fluorescence and phosphorescence, which has a small number of manufacturing steps owing to a relatively small number of layers to be formed and is advantageous for practical application can be provided. In addition, a multicolor light-emitting element using fluorescence and phosphorescence, which has favorable emission efficiency is provided. A light-emitting element which includes a light-emitting layer having a stacked-layer structure of a first light-emitting layer exhibiting light emission from a first exciplex and a second light-emitting layer exhibiting phosphorescence is provided.

The present invention provides a light-emitting element that includes a pair of electrodes, and an organic compound that has a glass-transition temperature of 150° C. or more, preferably 160° C. or more and 300° C. or less, and a metal oxide that are provided between the pair of electrodes, or includes a pair of electrodes, and a compound having a spiro ring and a triphenylamine skeleton and a metal oxide that are provided between the pair of electrodes. It is a feature that the compound has a spiro ring and a triphenylamine skeleton is a benzidine derivative represented by a general formula (1) In the formula, R1 is hydrogen or an alkyl group having 1 to 4 carbon atoms.

A high-intensity light source configuration has a long lifetime and can be modulated at a high rate. The configuration includes a movable member mounted to an actuator; a light-emitting phosphor region associated with the movable member; an input light source that illuminates the light-emitting phosphor region at a spot that is fixed relative to an emitted light output region; and a light source controller controlling the movable member actuator and the input light source. The input light source (e.g., laser) provides high-intensity input light to the illuminated spot, causing the light-emitting phosphor region to emit high-intensity output light. The light-emitting phosphor region is moved relative to the illuminated spot so as to reduce optical quenching and photobleaching, to thereby extend the life of the light source configuration. The phosphor region may emit broadband light and / or may include respective sub-regions having phosphors that emit respective peak wavelengths.

A high-intensity light source configuration has a long lifetime and can be modulated at a high rate. The configuration includes a movable member mounted to an actuator; a light-emitting phosphor region associated with the movable member; an input light source that illuminates the light-emitting phosphor region at a spot that is fixed relative to an emitted light output region; and a light source controller controlling the movable member actuator and the input light source. The input light source (e.g., laser) provides high-intensity input light to the illuminated spot, causing the light-emitting phosphor region to emit high-intensity output light. The light-emitting phosphor region is moved relative to the illuminated spot so as to reduce optical quenching and photobleaching, to thereby extend the life of the light source configuration. The phosphor region may emit broadband light and / or may include respective sub-regions having phosphors that emit respective peak wavelengths.

A method of forming an organic light emitting diode comprising the steps of: providing a substrate comprising a first electrode for injection of charge carriers of a first type; forming a charge transporting layer by depositing over the substrate a charge transporting material for transporting charge carriers of the first type, the charge transporting material being soluble in a solvent; treating the charge transporting layer to render it insoluble in the solvent; forming an electroluminescent layer by depositing onto the charge transporting layer a composition comprising the solvent, a phosphorescent material, and a host material; and depositing over the electroluminescent layer a second electrode for injection of charge carriers of a second type.

A combustion system includes a primary combustion chamber divided into left and right sides by fuel-retaining standards defining a canyon or void extending into a secondary combustion chamber is provided. The floor of the primary combustion chamber and the fuel-retaining standards direct the burning solid fuel toward the lower part of the canyon, while at the same time retaining the non-burning solid fuel on either side of the fuel-retaining standards. The combustion system further includes an air delivery system having a lower air tube supplying high and low velocity air and an upper air tube. The lower air tube is positioned proximate to a firebox floor, while the upper air tube is positioned within the secondary chamber. Automatic air setting mechanisms are provided so that proper air settings can be maintained during various phases of a fire. The combustion system further includes a loading door having openings and a bypass system preventing the loading door from being fully closed unless the bypass is in the completely closed position. The secondary combustion chamber includes at least fuel protecting baffles and a secondary combustion chamber ceiling which extends partially over the entire length of the secondary combustion chamber or includes openings. A catalyst mounting system which minimizes canning and masking and a radiant catalyst heating system are also provided.

A solid state light-emitting device comprising: a first electrode coupled to a first charge injecting layer; a second electrode coupled to a second charge injecting layer; an emissive layer comprising a perovskite material, wherein the emissive layer is provided between the first and second charge injecting layers; and wherein the bandgaps of the first and second charge injecting layers are larger than the bandgap of the emissive perovskite layer.

The invention provides a preparation method for carbon dots. The preparation method comprises the steps: mixing citric acid and urea in a solvent, and then, carrying out heating, so as to obtain a reaction solution; and carrying out centrifugal separation on the reaction solution, so as to obtain precipitates, i.e., the carbon dots, wherein the solvent is one or a mixture of two of water, glycerine and dimethylformamide. According to method, visible-light-all-waveband-luminescent carbon dots are prepared through adopting different solvents, and thus, the carbon-dot composite material provided by the invention can emit light in all wave band of visible light, particularly, white-light carbon-dot composite materials of different color coordinates and color temperatures can be obtained by adopting the carbon dots of different colors. Furthermore, the carbon-dot composite material provided by the invention employs silicon dioxide as a dispersion matrix, so that gathered induced fluorescence quenching can be inhibited, and the composite material has relatively high quantum efficiency. The invention further provides the preparation method for the carbon dots, the carbon-dot composite material, a preparation method therefor and a luminescent LED (Light Emitting Diode).

Disclosed is a method of splicing ReBCO high temperature superconductors (HTSs), which ensures excellent superconductivity after splicing. The method of splicing 2G ReBCO HTSs allows a superconductors-spliced assembly to exhibit excellent superconductivity by direct contact of high temperature superconducting layers of two strands of 2G ReBCO HTSs and solid state atoms diffusion pressurized splicing there between at a ReBCO below peritectic reaction temperature in a vacuum, and enables loss of superconductivity caused by loss of oxygen due to transport and out-diffusion of oxygen to atoms during splicing to be recovered through oxygenation annealing.

The invention discloses a preparation method of a controlled fluorescent graphene quantum dot. The preparation method comprises the following steps: uniformly and quickly dispersing graphite oxide into ultrapure water by ultrasonic action to obtain a dispersion liquid of graphite oxide; adding different amount of hydrogen peroxide solution into the obtained dispersion liquid of graphite oxide, and at last, obtaining the graphene quantum dot under ultraviolet radiation. The preparation method disclosed by the invention is simple, and short in technology process; the prepared product is small in particle size, uniform in distribution, and excellent in fluorescent property; the conditions can be controlled to prepare the graphene quantum dot with the required wavelength.

A multicolor light-emitting element using fluorescence and phosphorescence, which has a small number of manufacturing steps owing to a relatively small number of layers to be formed and is advantageous for practical application can be provided. In addition, a multicolor light-emitting element using fluorescence and phosphorescence, which has favorable emission efficiency is provided. A light-emitting element which includes a light-emitting layer having a stacked-layer structure of a first light-emitting layer exhibiting light emission from a first exciplex and a second light-emitting layer exhibiting phosphorescence is provided.

The invention discloses a low-voltage organic electroluminescent blue light emitting device. The low-voltage organic electroluminescent blue light emitting device is composed of an ITO transparent substrate, a p-type doping injection layer, a hole transport layer, a luminescent layer with the hole transport characteristic, a hole diffusion layer, an electronic transport layer, an electronic buffer layer and a metal back electrode in a stacked mode. The luminescent layer with the hole transport characteristic is made of blue light emitting materials. The hole diffusion layer is made of organic semiconductor materials with the bipolar transport characteristic. The HOMO energy level of the hole diffusion layer is between the HOMO energy level of the luminescent layer and the HOMO energy level of the electronic transport layer. A photoluminescent spectrum of the hole diffusion layer and an absorption spectrum of the luminescent layer overlap. The low-voltage organic electroluminescent blue light emitting device has the advantages that the p-type doping injection layer and the hole diffusion layer are arranged in the device, so that the injection capability of holes is improved; meanwhile, cancellation, caused by accumulation of a large number of holes, of excitons in the luminescent layer is avoided, and efficient luminescence of the device at a low voltage is realized; the device has the advantages of low driving voltage, high brightness, high efficiency, good stability and simple preparation processes.

The invention relates to a light-splitting spectrum greenhouse film which comprises an inner film, a middle film and an outer film, wherein the master batch of the outer film comprises 2.8-3.4 parts of optical stabilizer, 0.8-1.1 part sof antioxidant, 0.8-1.2 parts of polyethylene wax, 0.8-1.2 parts of light-splitting assistant and 48-57 parts of polyethylene-vinyl acetate copolymer; the light-splitting assistant is the mixture of La<3+>, Y<3+> and Gd3<+>; the ratio by weight of the rare earth ions La<3+>, Y<3+> and Gd<3+> is (4-5):(8-9):(5-6); the ingredients comprise EVA (ethylene-vinyl acetate copolymer), LDPE (low-density polyethylene) and LLDPE (linear low density polyethylene); the ratio of parts by weight of the EVA, LDPE and LLDPE of the outer film and the master batch is (23-27):(23-27):(73-77):(11-17); the Eu<3+> ions in the rare earth assistant are partly displaced by non-fluorescent rare ions La<3+>, Y<3+> and Gd<3+> to form a heteronuclear multinuclear coordination compound, so as to strengthen the luminous intensity and overcome acute peaks; the half-width of the emission spectrum is 70nm; the excitation wavelength of the light-splitting spectrum greenhouse film is 290-390nm, the maximum wavelength is 332nm, and the emission spectrum is between 580-660nm; ultraviolet lights in solar radiation can be absorbed and transformed into red orange lights with large emission brightness and good colour purity; and the light conversion rate reaches 98%.

The invention utilizes a characteristic of superconducting coils that they have high thermal conductivity in a direction of winding. A part of the superconducting coils is thermally connected with liquid helium through thermal anchors so that the part of the superconducting coils can be cooled to the liquid helium temperature. This cooling structure maintains thermal stability of a superconducting MRI magnet even in a condition that a refrigerator stops for a certain period of time, and reduces a manufacturing cost of the superconducting magnet.

The invention relates to a multi-layer quantum dot film and a backlight module group. A quantum dot core layer, an upper water and oxygen barrier layer and a lower water and oxygen barrier layer are included. A first quantum dot microcapsule layer is arranged between the quantum dot core layer and the upper water and oxygen barrier layer. A second quantum dot microcapsule layer is arranged between the quantum dot core layer and the lower water and oxygen barrier layer. The first quantum dot microcapsule layer and the second quantum dot microcapsule layer comprise, by weight, 80-110 parts of matrix adhesives, 3-41 parts of quantum dot microcapsules and 1-15 parts of diffusion particles. Luminescence efficiency stability of the multi-layer quantum dot film is good. A test is performed under high temperature and high humidity conditions. Brightness and color gamut attenuation are low and small.

The invention relates to a quantum-dot optical film and a backlight module. A quantum dot core layer, an upper water-proof oxygen-insulation encapsulation layer and a lower water-proof oxygen-insulation encapsulation layer are included. The quantum dot core layer comprises, by weight, 80-110 parts of a matrix adhesive, 6-44 parts of a quantum dot microcapsule and 1-15 parts of a diffusion particle. Luminescence efficiency and stability of the quantum-dot optical film are good. A test is performed under high temperature and high humidity conditions. Brightness and color gamut attenuation are low and small.

A refrigerating machine jacket structure for a superconduction magnet and an installation and disassembly method of the refrigerating machine jacket structure relate to the technical field of low-temperature engineering and superconduction magnets. The refrigerating machine jacket structure sequentially comprises a refrigerating machine flange seat (3), a primary corrugated pipe (11), a primary flange seat (12), a secondary corrugated pipe (21) and a secondary flange seat (22) from top to bottom, wherein thermal connection is formed between a cold screen and the primary flange seat 12), thermal connection is formed between a superconduction coil and the secondary flange seat (22), the refrigerating machine flange seat (3) and the primary flange seat (12) are connected by the primary corrugated pipe (11), and the primary flange seat (12) and the secondary flange seat (22) are connected by the secondary corrugated pipe (21). The refrigerating machine jacket structure has the characteristics of low conduction thermal leakage, high vacuum tightness, high thermal connection efficiency and long lifetime of a refrigerating machine.

The invention discloses a 20W3dB attenuating piece of an aluminium nitride ceramic substrate, comprising a 5*5*1mm aluminium nitride substrate, wherein a back conducting layer is printed on the back surface of the aluminium nitride substrate; wires and resistors are printed on the front surface of the aluminium nitride substrate; the wires are connected with the resistors to form an attenuation circuit which is symmetrical along the central line of the aluminium nitride substrate; the output end and the input end of the attenuation circuit are respectively connected with a bonding pad; and the two bonding pads are symmetrical along the central line of the aluminium nitride substrate. In the attenuating piece, the resistance area is enlarged, so that the high-low temperature impact resistance is enhanced, the quenching damage of high temperature to the resistors is avoided when the output end is welded with a lead, the risk of breaking down in the actual use process due to quenching damage of the resistors is avoided, the performance of the attenuating piece is greatly improved, the situation that the original attenuating piece only can be applied in low frequency is broken, and further the attenuating piece can be applied in 2G-3G networks.

The invention provides a method for removing polycyclic aromatic hydrocarbons by using zero-valent iron activated persulfate. The method comprises the following steps: adding zero-valent iron and persulfate into a system rich in polycyclic aromatic hydrocarbons; and after carrying out full mixing and reacting, removing the polycyclic aromatic hydrocarbons in the system. According to the method, the zero-valent iron is used for dissolving out ferrous ions in a reaction system, the persulfate is activated to generate sulfate radicals, the polycyclic aromatic hydrocarbons are degraded, and a purpose of removing the polycyclic aromatic hydrocarbons in soil and underground water is achieved. The method has the advantages that the polycyclic aromatic hydrocarbons can be effectively degraded under the condition of small feeding amount, meanwhile, quenching reaction between the ferrous ions and the sulfate radicals can be avoided, and the degradation efficiency is improved. A good removal effect can be achieved at normal temperature, the pH application range is wide, the method is simple to operate, and the method can be implemented without other equipment and can be used for removing thepolycyclic aromatic hydrocarbons in the soil and the underground water.

The invention relates to a single preheating, sintering, igniting and heat insulating furnace with the advantages of simple structure, little pollution, obvious energy saving effect and high safety. The furnace comprises an igniting section and a heat insulating section, wherein the igniting section and the heat insulating section are connected into a whole and are arranged on a sintering machine table. The heat insulating section comprises an air preheating furnace, and an air heat exchanger is arranged in the air preheating furnace. The igniting section comprises a plurality of burning nozzles, and each burning nozzle is connected with a blast furnace gas pipe and a hot air pipe. A cold air inlet and a cold air input tube of the air heat exchanger are connected, and a fan is arranged on the cold air input tube. A hot air outlet of the air heat exchanger is connected with an inlet of the hot air tube. The air heat exchanger is arranged on a trolley. When the single preheating, sintering, igniting and heat insulating furnace is in working, the sintering compound of the waste gas trolley outputted by the air preheating furnace is insulated, and sucked into a large fume passage by the sintering compound surface of the trolley. The large fume passage is connected with the hot waste gas heat energy recovery system and the waste gas treating system to recover and utilize heat energy and remove harmful elements of sulphur and the like in the waste gas.

The invention discloses a high-power aluminum nitride ceramic substrate 100W-20dB attenuator, which comprises an aluminum nitride substrate, a conductive layer is printed on the back of the aluminum nitride substrate, and several resistors and silver are printed on the front of the aluminum nitride substrate. Paste wire, the silver paste wire is connected to the resistor to form an attenuation circuit, and the glass protective film is printed on the resistor. The high-power aluminum nitride ceramic substrate 100W-20dB attenuator increases the resistance area, increases the high and low temperature impact resistance of the attenuator, and makes the product performance index meet the requirements. At the same time, it avoids the high temperature resistance quenching when welding the lead wire at the output end, avoids the risk of damage due to resistance quenching during actual use, and improves the circuit design so that the product can be applied to 3G networks.

The invention belongs to the technical field of solar cell manufacturing and relates to a method for manufacturing a polymer solar cell mixed with clad nanometer metal. The method for manufacturing the polymer solar cell mixed with the clad nanometer metal includes the following steps. A transparent substrate with anode electrodes are thoroughly cleaned and dried. An electron hole transmitting layer is formed on anode electrodes. An optical activity layer mixed with organic or inorganic clad nanometer metal is formed on the electron hole transmitting layer. An electron buffering layer is formed on the optical activity layer. Finally, a cathode electrode is formed on the electron buffering layer to obtain a polymer solar cell mixed with organic or inorganic clad nanometer metal. The polymer solar cell manufacturing method mixed with the clad nanometer metal is simple in manufacturing technology, high in optical conversion rate, low in cost and friendly to environment.

The present invention provides a light-emitting element and a light-emitting device which have high contrast, and specifically, provides a light-emitting device whose contrast is enhanced, not by using a polarizing plate but using a conventional electrode material. Reflection of external light is suppressed by provision of a light-absorbing layer included between a non-light-transmitting electrode and a light-emitting layer. As the light-absorbing layer, a layer is used, which is obtained by adding a halogen atom into a layer including an organic compound and a metal oxide. Further, the light-absorbing layer is formed also over a region in which a thin film transistor for driving a light-emitting element is formed, a region in which a wiring is formed, and the like, and thus light is extracted from the side opposite to the region in which the TFT is formed, thereby reducing reflection of external light.

The present invention relates to an opto-electric device having a stack of layers subsequently comprisinga first electrode layer (20) of a material having a first work function, deposited on a substrate (10) or forming a substrate (20),an organic opto-electric layer (30) on the first electrode layer (20),a patterned electrically conductive layer (40) printed on the opto-electric layer (30),a transparent, second electrode layer (50) of a material having a second work function on the opto-electric layer (30) provided with the patterned electrically conductive layer (40), the second work function having a value lower than the first work function.

The invention discloses a sectional binary current lead structure on the basis of conduction cooling. The sectional binary current lead structure is characterized in that a copper lead portion of a current lead is of a sectional variable-cross-section structure, a constant-temperature connecting portion of the copper lead portion is thick, a high-temperature superconductor connecting lead end of the copper lead portion is thin, a connecting portion of the copper lead portion is in conical transition, and a superconductor lead portion of the current lead is of an epoxy resin fixed assembly structure. The sectional binary current lead structure has the advantages that heat leakage of the current lead can be greatly reduced owing to the sectional variable-cross-section structure, and the sectional binary current lead structure is favorable for machining; a joint of a common conductor and a superconductor is optimally designed and is refrigerated by a primary cold head of a refrigerator, aluminum nitride (AlN) is used as an insulating heat-conduction material, the cross section of the aluminum nitride is maximized, only the section side of a part, which is close to the cold head, of a copper lead keeps connected with a superconductor lead, accordingly, contact heat resistance of the joint is low, heat leakage can be reduced, a good cold-conduction effect can be realized, and quench at the joint can be effectively prevented.

The invention discloses a multi-layer wrapped quantum dot core-shell composite particle and a preparation method of the core-shell composite particle. The preparation method comprises wrapping a transparent inorganic insulating layer on the surface of a quantum dot to obtain an inorganic insulating layer wrapped quantum dot; connecting the inorganic insulating layer with a reductive group and performing surface modification to obtain a surface activated inorganic insulating layer wrapped quantum dot; and wrapping a precious-metal nano-particle layer on the surface of the surface activated inorganic insulating layer wrapped quantum dot to obtain the multi-layer wrapped quantum dot core-shell composite particle. The multi-layer wrapped quantum dot core-shell composite particle has characteristics of good stability, low biological toxicity, strong fluorescence intensity and high quantum efficiency. The reaction for preparing the multi-layer wrapped quantum dot core-shell composite particle is performed in a solution; high temperature and high pressure are not needed during the whole process; the operation is simple; the yield is high; a large number of multi-layer wrapped quantum dot core-shell composite particles can be prepared at a time; wrapping layers with different thickness can be obtained by controlling the reaction conditions and reaction parameters; and thus the multi-layer wrapped quantum dot core-shell composite particle has a good application prospect.

The invention discloses a perovskite photoelectric detector for accelerating electron filtering. The perovskite photoelectric detector comprises a substrate, an anode, an active layer and a compound cathode, wherein a hole-transporting layer is arranged between the anode and the active layer and an electron filtering layer is arranged between the active layer and the compound cathode. According to the invention, a perovskite material, which is characterized by high migration rate, low exciton binding energy, longer exciton life and longer exciton diffusion length, is taken as the active layer of the photoelectric detector, so that the loss of heat exciton in the device is greatly reduced. A novel electron filtering layer is creatively provided; the electrons can be effectively transmitted to the cathode and then collected; the recombination probability of exciton and the quenching effect of electrode to exciton can be greatly reduced; the obtained perovskite photoelectric detector has higher external quantum efficiency and spectral responsivity; the performance is obviously promoted.