104results about How to "Lower starting voltage" patented technology

The invention provides a liquid crystal composition and an application thereof. Based on 100 percent by mass of the composition, the liquid crystal composition comprises the following components in percentage by mass: 0-70 percent of a nematic liquid crystal compound shown as a formula I, 0-50 percent of a nematic liquid crystal compound shown as a formula II, 0-50 percent of a nematic liquid crystal compound shown as a formula III, 0-30 percent of a nematic liquid crystal compound shown as a formula IV and 0-30 percent of a nematic liquid crystal compound shown as a formula V. The liquid crystal composition has high birefringence rate, and has the characteristics of high upper limit temperature of a nematic phase, low lower limit temperature of the nematic phase, low rotation viscosity, high response speed and the like. The liquid crystal composition provided by the invention can be applied in the fields of variable-focus liquid crystal lenses and the like.

A double-sided, direct-irradiation type backlight unit has a structure of capable of reducing the luminance irregularity and improve the luminance efficiency. The backlight unit has a scatter-reflection rod member 101 between each adjacent two of elongate lamps. The scatter-reflection rod member 101 has a symmetric shape with respect to the line passing the center thereof in X-direction, and that passing the center thereof in Y-direction. The light emitted from the elongate lamp 102 in X-direction is reflected by the scatter-reflection-rod member 101 and then travels in the direction toward the front- and rear-side diffusion plates 106.

The invention provides a dielectric barrier discharge enhanced-type low-temperature plasma brush generation device for the purpose of improving the technical scheme in the background technology so as to obviously reduce the energy consumption. In the dielectric barrier discharge enhanced-type low-temperature plasma brush generation device, a pair of plate electrodes for ionizing working gas in advance is arranged between a gas inlet port and a main discharge electrode; the distance between each plate electrode and the main discharge electrode is not less than 1mm along the flow speed direction of the working gas; and the discharge end face of each plate electrode is provided with an insulation layer. According to the invention, the voltage of the main discharge or the initial voltage for generating a brush-shaped plasma is lower, the rated operational voltage and current are smaller when normal glow discharge is carried out, the discharge energy of the plasma is less, the Joule heat consumed on a current-limiting resistance is less, and the service lives of the main discharge electrode and a current-limiting resistor are prolonged.

This invention relates to a method and a device for ozone production, in particular to produce ozone by synergism of discharge and catalyst. The method includes introducing air or oxygen into the discharge space between high voltage electrode and grounding electrode, and discharging, wherein catalysts with high surface area and dielectric property filled in the space has catalytic effect on ozone production. The device comprises a discharge electrode consisting of high voltage power and high voltage electrode and grounding electrode, a cavity and an outlet and an inlet thereon, catalysts (2) with high surface area and dielectric property composited between the high voltage electrode (3) and the grounding electrode (4), spaces between discharge electrode and catalysts (2) and spaces formed by catalysts (2) as flow channel for discharge gas.

The invention provides an electrolysis method for producing high-purity hydrogen peroxide and hydrogen with low cost. The electrolysis method includes the steps that a pure-phase single crystal wafer or a single crystal wafer doped with bismuth vanadate serves as an anode of an electrolytic cell, wherein the crystal orientation of the single crystal wafer is {111} or {110} or {100} or {010}; and after alkaline electrolyte is added to the electrolytic cell, the bias voltage is externally applied to the anode and a cathode of the electrolytic cell, hydrogen peroxide is generated by the anode, and hydrogen is generated by the cathode. Compared with the prior art, by the adoption of the electrolysis method, expensive platinum is replaced with single crystal semiconductor oxide serving as the electrolytic anode, and production cost is lowered greatly. Compared with a platinum electrode of traditional electrolytic sulfuric acid or traditional electrolytic sulfate, by the adoption of the electrolysis method, the required initial voltage is smaller, and the electricity energy utilization efficiency is higher than that of the platinum electrode. By the adoption of the electrolysis method, the electrode material cost is lowered effectively, the electricity energy utilization efficiency is improved, meanwhile high-purity hydrogen peroxide and hydrogen are produced, and the electrolysis method has the important industrial application value.

The invention provides preparation and surface modification methods of a ferrous titanate / iron trioxide composite photoelectrode and relates to the field of materials. The preparation method of the composite photoelectrode includes the steps that FTO conducting glass is washed; the FTO conducting glass is placed in an inorganic salt water solution of titanium in the manner that the conducting face is downward, and the FTO conducting glass is soaked for 10-60 min at the temperature of 60-80 DEG C; the washed FTO conducting glass is heated for 10-30 min at the temperature of 150-200 DEG C; the heated FTO conducting glass is placed in a reaction still containing inorganic salt of iron and a mineralizer water solution, and the reaction still is heated for 2-5 h at the temperature of 60-100 DEG C; and the FTO conducting glass obtained after the reaction in the reaction still is taken out and washed, the washed FTO conducting glass is annealed for 1-3 h at the temperature of 500-600 DEG C and then annealed for 10-30 min at the temperature of 700-800 DEG C, and the nano ferrous titanate / iron trioxide composite photoelectrode is prepared. The preparation method of the composite photoelectrode is simple, experimental conditions are easy to control, and the prepared composite photoelectrode has high photoelectrocatalysis water decomposition performance.

The invention relates to a pyrene-containing organic compound and application in OLED, and belongs to the technical field of semiconductors, wherein the structure of the compound is represented by a general formula (1). The compound provided by the invention has relatively strong hole transport capability, and the hole injection and transport performance is improved under a proper HOMO energy level; under the proper LUMO energy level, the electron blocking effect is achieved, and the recombination efficiency of excitons in the light-emitting layer is improved; and when the compound is used asa functional layer material of an OLED light-emitting device, exciton utilization rate and high fluorescence radiation efficiency can be effectively improved, efficiency roll-off under high current density is reduced, device voltage is reduced, current efficiency of the device is improved, and service life of the device is prolonged.

An objective of the invention is to provide an organic EL device that combines various materials of the device and a capping layer composed from a material that absorbs sunlight within the wavelength range of 400 nm to 410 nm to prevent impact on materials inside the organic EL device, has a high light absorption coefficient and a high refractive index to significantly improve light extraction efficiency, has excellent stability, durability and light resistance in a thin film, and has no absorption within the wavelength ranges of blue, green and red, to thereby effectively achieve the characteristics of the various materials of the device. The invention is an arylamine compound having a benzazole structure, and is also an organic EL device including a capping layer containing the arylamine compound and a light-emitting layer containing a host and a phosphorescent dopant.

A compound having an indolocarbazole ring structure is represented by the following general formula (1), and is used as a material for forming a highly efficient and highly durable organic electroluminescent device. The compound features excellent hole injection / transport capability, has electron blocking power and is highly stable in the form of a thin film.wherein,A is a divalent aromatic hydrocarbon group or aromatic heterocyclic group,Ar1 to Ar4 are monovalent aromatic hydrocarbon groups or aromatic heterocyclic groups, andR1 to R9 are hydrogen atoms, deuterium atoms, fluorine atoms, chlorine atoms, cyano groups, nitro groups, alkyl groups, cycloalkyl groups, alkenyl groups, alkyloxy groups, cycloalkyloxy groups, aromatic hydrocarbon groups, aromatic heterocyclic groups or aryloxy groups.

The invention relates to a pyrene-containing organic compound and application thereof, and belongs to the technical field of semiconductors, wherein structure of the compound is represented by a general formula (1). The compound provided by the invention has relatively strong hole transport capability, and the hole injection and transport performance is improved under a proper HOMO energy level; under the proper LUMO energy level, the electron blocking effect is achieved, and the recombination efficiency of excitons in the light-emitting layer is improved; and when the compound is applied to an OLED device, high film layer stability can be kept through device structure optimization, the photoelectric property of the OLED device can be effectively improved, and the service life of the OLEDdevice can be effectively prolonged.

The invention discloses a compound containing a pyrazole structural unit, a preparation method and an application. A structural general formula of the compound containing the spirofluorene structural unit is shown as a formula I. The nuclear magnetic detection of the compound is correct, the compound can be used as an OLED monomer material, and has important application value. The compound has the main advantages that 1) the synthesis is relatively simple; 2) the compound has high efficiency stability and good glass transition temperature; and 3)the device produced by the OLED material has the advantages of low original voltage, high luminescence efficiency and good chromaticity coordinate.

The invention discloses a sewage treatment microbial carrier, which consists of a magnetic carbon fiber bracket and a polypyrrole film layer, wherein microorganisms are fixed on the surface of the polypyrrole film layer; wherein the magnetic carbon fiber bracket is formed by weaving composite fiber bundles, and is obtained through pre-oxidation and carbonization treatment; the composite fiber is apolyacrylonitrile fiber doped with graphene, and magnetic iron oxide nanoparticles are uniformly distributed on the surface and inside the composite fiber. The iron oxide nanoparticles generated in situ have good photocatalytic activity, and can promote local graphitization of the carbon fibers and cooperate with graphene to improve the conductivity of the carbon fibers; the magnetic carbon fiberbracket is used as a working electrode; a polypyrrole film is electrochemically deposited on an iron oxide photocatalyst, so that microorganisms are effectively fixed and cannot be embedded, microorganism loading and proliferation are facilitated, the iron oxide photocatalyst and the microorganisms can be in full contact with pollutants in sewage, photocatalytic degradation and microorganism treatment are synchronously carried out, and the sewage treatment efficiency is greatly improved.

A high-pressure discharge lamp comprising an inner bulb (2) with a discharge space (3) containing an ionizable filling is described. Two electrodes (4,5) project from opposite sides into the discharge space (3). An outer bulb (13) surrounds the inner bulb (2) and a current-supply conductor (12) extends outside the outer bulb (13) for supplying an electric current to one of the two electrodes (5). A starter antenna (14) is connected to they current-supplyconductor (12). The starter antenna (14) passes through an opening (15) in the wall of the outer bulb (13) and extends towards the outer surface of the inner bulb (2).

Electron emission sources, electron emission devices including the electron emission sources, and methods of making the electron emission sources are provided. The electron emission source includes a carbon-based material, and a degradation prevention material for preventing degradation of the carbon-based material. A binding energy between the degradation prevention material and external oxygen is greater than a binding energy between the carbon-based material and the external oxygen. The electron emission sources have excellent field emission efficiencies and long lifetimes.

The invention relates to applications of a catalyst and a device in a reaction for preparing high-purity hydrogen through an electrocatalytic water-vapor shift reaction. According to the invention, based on the application, a process for converting carbon monoxide and water into hydrogen and carbon dioxide at a normal temperature under a normal pressure is achieved, the purity of the cathode product hydrogen is up to 99.99%, and the separation is not required; and the method is mild in reaction conditions, the cathode product and the anode product are completely separated, the obtained hydrogen is high in purity and is not required to be further separated, and the energy efficiency of the whole reaction is high.

The invention relates to a pyrene-containing organic compound and application thereof, and belongs to the technical field of semiconductors, wherein the structure of the compound is represented by a general formula (1). The organic compound provided by the invention has relatively strong hole transport capability, and the hole injection and transport performance is improved under a proper HOMO energy level; under the proper LUMO energy level, the electron blocking effect is achieved, and the recombination efficiency of excitons in the light-emitting layer is improved; and when the compound used as a light-emitting functional layer material of an OLED light-emitting device, the branched chains in the range of the invention can be matched to effectively improve the exciton utilization rate and radiation efficiency, reduce the efficiency roll-off under high current density, reduce the device voltage, improve the current efficiency of the device and prolong the service life of the device.

The invention relates to an amino-containing organic compound and application thereof, and belongs to the technical field of semiconductors, wherein the structure of the compound is represented by a general formula (1). According to the invention, the compound has relatively strong hole transport capability, and hole injection and transport performances are improved under a proper HOMO energy level; under the proper LUMO energy level, the electron blocking effect is achieved, and the recombination efficiency of excitons in the light-emitting layer is improved; and when the compound is appliedto an OLED device, high film layer stability can be kept through device structure optimization, the photoelectric property of the OLED device can be effectively improved, and the service life of the OLED device can be effectively prolonged.

The invention discloses an organic LED of a multilayer structure. The organic LED comprises a cathode layer, an electron injection layer, an electron transfer layer, a luminous layer, a hole transfer layer, a hole injection layer, an anode layer and a glass substrate which are stacked up in sequence from top to bottom, and is characterized in that the cathode layer is an Mg-Ag alloy layer; the anode layer is a conducting glass layer; a buffer layer is also arranged between the hole injection layer and the conducting glass layer, and the buffer layer is an insulating substance layer and is 0.6-1.8 nm in thickness; the hole injection layer is a PEDOT layer. Preferably, the buffer layer can be a silicon dioxide layer or a lithium fluoride layer. Preferably, the electron injection layer is an alkali metal compound layer or an alkali metal fluoride layer. The conventional multilayer structure is improved, so that the charge injection efficiency of the hole injection layer is improved, and the driving voltage is reduced.

The invention is a device for using self-assembly molecular as the electron ejecting layer of emitting LED and the method. It uses a kind of self-assembly molecular as electron ejecting layer, it forms a self-assembly molecular film with self pair pole on negative metal layer, the film is used as an electron ejecting layer, which binds with negative metal through dipole and donor of self-assembly molecular, the dipole direction of self-assembly molecular can rebound to the improvement of electron ejecting efficiency, thus increases the emitting efficiency of emitting LED component, and decrease the start voltage of emitting LED component.

The present invention provides an organic EL device having at least an anode, a hole injection layer, a first hole transport layer, a second hole transport layer, a luminous layer, an electron transport layer, and a cathode in order of description. The second hole transport layer includes an arylamine compound having a specific structure, and the electron transport layer includes a pyrimidine derivative having a specific structure. The organic EL device of the present invention has a high efficiency, a low driving voltage, and a longer life.

The invention discloses a modified ferrihydrite / hematite nano-rod core-shell structure compound light anode and an application thereof. A preparation method of the light anode includes the steps: S1 preparing hematite growth solution, placing a conducting substrate into the hematite growth solution, synthesizing a FeOOH film on the conducting substrate by a solvent thermal synthesis method, washing the FeOOH film, and drying the washed FeOOH film for standby application; S2 performing high temperature annealing on the conducting substrate acquired in the step S1, and cooling the conducting substrate to obtain the conducting substrate with the hematite film surface; S3 preparing ferrihydrite growth solution, placing the conducting substrate acquired in the step S2 into the ferrihydrite growth solution, heating mixture, washing the conducting substrate after reaction is completed, and drying the washed conducting substrate to obtain the modified ferrihydrite / hematite nano-rod core-shellstructure compound light anode. According to the method, a ferrihydrite thin layer is loaded on the surface of the hematite to prepare the core-shell structure compound light anode which is resistantto light corrosion and good in photoelectrochemical property and stability, and the compound light anode can be used for decomposing water to generate hydrogen and is high in catalytic efficiency andstable in catalytic effect.

The invention relates to an organic compound taking triarylamine as a core, and a preparation method and an application thereof, and belongs to the technical field of semiconductors. The structure ofthe compound is represented by general formula (1) shown in the description. The invention also discloses the preparation method and the application of the compound. The compound has a high hole transport capability, and has improved hole injection and transport performances under a proper HOMO energy level; the compound has an electron blocking effect under a proper LUMO energy level to improve the recombination efficiency of excitons in a light-emitting layer; and when the compound is used as a light-emitting functional layer material of an OLED device, the exciton utilization rate and the radiation efficiency can be effectively improved by matching with the branched chains in the range of the invention.

The present invention relates to a method for producing storage cell characterized in depletion type, single layer, polysilicion, electrical erase and programme read only. The method includes the steps as follows: providing a substrate which consists of a floating area and a control area, forming a separated pit area and a pit area respectively in the substrate of the floating area and the control area; next, establishing a well region and a separated well region respectively in the separated pit area and the substrate between the separated pit area and the well region; forming a depletion dope area and a storage cell injecting area respectively in the well area and the pit area; constructing a floating grid which crosses the floating area and the control area on the substrate. Wherein, the floating grid exposes part of the depletion dope area as well as part of the storage cell injecting area; finally, carrying out a technique of doping for the aim of forming a source electrode or drain electrode area and a heavy dope area respectively in the exposed part of the depletion dope area and the storage cell injecting area.

A double constant flow driving module for high-power LED miner's lamp, the supply power is lithium battery, use the high-power super-light LED as the main lamp-house, the low-power super-light LED as the vice lamp-house, the characters are: the normal voltage circuit (-) connect with the in-phase input end of the calculating magnifier (-), the calculating magnifier (-) and the calculating magnifier (-) in-phase respectively; the current sampling unit (-) connect with the off-phase input end of the calculating magnifier (-); the output end of the calculating magnifier (-) connect with the current adjust unit, he output end of the calculating magnifier (-) connect with the current adjust unit, the over-current protecting circuit parallel connect with the current adjust unit, by the whole circuit supply power to the main lamp-house (-) and the vice lamp-house (-).

The invention discloses a quartz clock and watch rotor wheel which is low in starting voltage and power consumption. The rotor wheel comprises a wheel disc, wherein the edge of the cross section of the wheel disc is provided with at least three symmetric edge lugs which are the same in thickness, the outmost edges of all the edge lugs are located on the same excircle with the axis of the wheel disc as a center, and the wall thickness of the largest transverse portion of each edge lug is 0.01 mm-0.3 mm larger than that of other portions of the disc wall of the wheel disc. According to the rotor wheel, on the condition that injection molding is safely formed, the thickness of the disc wall of the wheel disc is effectively reduced, and accordingly the weight is correspondingly reduced, namely rotation inertia of the rotor wheel can be effectively reduced; due to the action of the edge lugs, during assembling, the inclination angle of the rotor wheel is smaller than the inclination angle of a rotor wheel which is assembled in the prior art. On the condition that identical materials and magnetic steel are used, the rotation inertia of the rotor wheel is effectively reduced, and accordingly the starting voltage and the power consumption are low; additionally, the rotation inertia is small, and accordingly the rotor wheel is reliable when moving.

The invention discloses a compound taking a dibenzo five-membered heterocyclic ring as a core and an application thereof, and belongs to the technical field of semiconductors. The structure of the compound provided by the invention is shown as a general formula (1) or a general formula (2), the compound provided by the invention contains a dibenzo five-membered heterocyclic parent nucleus structure, and has appropriate HOMO and LUMO energy levels, a relatively high triplet state energy level (T1) and a relatively low dipole moment. After the compound is applied to an OLED device, the luminousefficiency of the device can be effectively improved, and the service life of the device can be effectively prolonged.

The invention discloses a multi-electrode microsensor for detecting copper metal vapor concentration. The microsensor comprises a discharge cathode comprising a metal discharge needle array, a first insulated support, an extraction electrode, second insulated supports and a collecting electrode, wherein the discharge cathode is grounded, and generates a strong electric field in a small local area at the tips of metal discharge needles, thereby realizing the field emission of electrons; the first insulated support is used for isolating the discharge cathode from the extraction electrode; the extraction electrode is connected with a direct current power supply, and is used for extracting positive ion current generated by the ionization, collision and diffusion of detected gas to realize the separation of the electrons from the positive ion current; the second insulated supports are used for isolating the extraction electrode from the collecting electrode; the collecting electrode is connected with the direct current power supply, and the positive ion current is accelerated by the electric field so as to be absorbed by the collecting electrode. According to the microsensor, the detected gas can weakly discharge electricity under the conditions of normal temperature, atmospheric pressure and low voltage, and corresponding discharge current can be obtained on the collecting electrode; the microsensor can be used for detecting the copper metal vapor concentration in an arc extinguishing chamber of a circuit breaker.

The invention belongs to the technical field of preparation of functional nano materials, and relates to preparation of an electrolytic water evolution oxygen catalyst, and in particular relates to asulfur-doped NiFe(CN) 5NO electrolyze water oxygen evolution catalyst by using a solvothermal preparing method and application thereof. The method comprises the following steps that equal volume of Na2Fe(CN)5 NO. 2H2O solution is added into a Ni(NO3).6H2O solution, and uniform stirring is performed, after leaving the solution to stand, centrifugal separation, washing and vacuum drying are carriedout on the precipitates, NiFe(CN)5NO nano-particles are obtained, and then the NiFe(CN)5NO nano-particles are ultrasonically dispersed in absolute ethyl alcohol, a sulfur source is added, after ultrasonically dispersing and uniformly stirring are performed, the mixture is transferred into a reaction kettle, wherein reaction time is carried out for 8-16 hours at the temperature of 120-200 DEG C, then naturally cooling is performed, a product S-NiFe(CN)5NO is obtainedthe after the centrifugal separation, the washing and the vacuum drying are performed on the product; the morphology of the prepared product is regular, and the particle size is about 40 micron; and the S-NiFe(CN)5NO has the advantages of excellent in electrocatalytic activity and good in stability when being used as an electrolytic oxygen evolution reaction catalyst. According to the method, compared with a commercial noble metal catalyst, the prepared electrolytic water oxygen evolution reaction catalyst has better catalytic performance; and the preparation method is simple, the controllability is good, the cost is low, and the industrial implementation is easy.

The invention discloses a compound taking a spirofluorene alkene structure as a core, a preparation method and applications thereof, wherein the structure of the compound is shown as a general formula(1). According to the invention, the compound has strong hole transport capability, wherein the hole injection and transport performance is improved under a proper HOMO energy level; under a proper LUMO energy level, the electron blocking effect is achieved so as to improve the recombination efficiency of excitons in a light-emitting layer; and with the application of the compound as the light-emitting functional layer material of an OLED light-emitting device, the utilization rate and the radiation efficiency of excitons can be effectively improved by matching with the branched chains in therange of the invention.