16 results about "Electron absorption" patented technology

The application discloses an in-situ testing method for an electron transmission mechanism of an oxygen vacancy modified SrTiO3@Ag nanotube photocatalyst, and belongs to the technical field of energy materials. The method steps are as follows: first, SrTiO3 nanotubes are prepared by an in-situ electrospinning method; a SrTiO3@Ag nanotube is prepared by using a photoreduction method to anchor Ag nanoparticles near oxygen vacancies to construct a Schottky heterojunction. The electron absorption characteristics of the oxygen vacancies and the Ag nanoparticles provide a driving force for the transfer of photo-generated electrons, and the synergistic effect of the oxygen vacancies and the Ag nanoparticles greatly promotes the separation of photo-generated carriers. Subsequently, the migration direction of the photo-generated carriers in the system is characterized by in-situ irradiation XPS technology. By using the in-situ testing method, it is proved that the oxygen vacancies can serve as a "bridge" to transfer the photo-generated electrons activated by the SrTiO3 nanotubes to the active site Ag nanoparticles for a photocatalytic reduction reaction, and the electron transmission mechanism under the catalytic reaction condition is revealed. The method can provide a more convenient, more scientific and more actual scene conforming research mode for the research on the electron transmission mechanism of a photocatalyst with vacancies.

The invention discloses an electrolyte containing a pyridyl compound as well as a preparation method and application of the electrolyte. The invention provides an electrolyte containing a pyridyl compound, which is prepared from the following components in percentage by mass: 15 to 25 percent of lithium salt, 2 to 4 percent of 3-bromo-5-fluoropyridylaldehyde, 0.5 to 1 percent of sulfur additive, 0.2 to 0.5 percent of carbonic ester additive, 0.5 to 1 percent of lithium salt additive and the balance of organic solvent. In the electrolyte provided by the invention, the 3-bromine-5-fluoropyridylaldehyde can form a stable interfacial film, and electrolyte decomposition and metal ion dissolution are inhibited; the bromine and fluorine electricity absorption groups can improve the stability of an electrode / electrolyte interface and assist uniform deposition of lithium; and acid can be removed, high-temperature gas production can be reduced, and battery circulation and storage performance can be enhanced.

A thermalization arrangement at cryogenic temperatures is dislcosed. The arrangement comprises a dielectric substrate layer on which substrate a device / s or component / s are positionable, and a heat sink component is attached on another side of the substrate. The arrangement further comprises a conductive layer between the substrate layer and the heat sink component. A joint between the substrate layer and the conductive layer has minimal phonon thermal boundary resistance. Energy of conductive layer phonons are arranged to be absorbed by electrons. Another joint between the conductive layer and the heat sink component is electrically conductive. The substrate layer and the conductive layer have similar acoustic properties.

The laminated OLED device comprises an anode layer, and a first light-emitting layer, a charge generation layer and a second light-emitting layer are sequentially arranged on one side of the anode layer in the direction away from the anode layer. An electron generation layer, a first hole generation layer and a second hole generation layer are sequentially arranged in the charge generation layer in the direction away from the anode layer. The charge generation layer is doped with an organic material with strong electron absorption capability, and the doping proportion of the first hole generation layer is higher than that of the second hole generation layer. According to the laminated OLED device provided by the invention, the charge generation layer is divided into a plurality of thinner layers, and by adjusting the thickness and the doping proportion of each layer in the charge generation layer, the carrier rates between adjacent layers can be matched, and obvious voltage drop at the interface of two adjacent layers caused by charge accumulation is prevented, so that the service life of the OLED device is prolonged; a metal stable layer is not arranged in the charge generation layer, so that light extraction is prevented from being hindered due to low visible light band transmittance, and the efficiency of the OLED device is improved.

The invention belongs to the technical field of catalyst synthesis, and particularly discloses a preparation method of a first-generation Grubbs catalyst, dichlorophenyl ruthenium (II) dimer is used as a metal source raw material, benzaldehyde and tricyclohexylphosphine are combined to synthesize the first-generation Grubbs catalyst, in the reaction process, a dendritic multi-site di (pentafluorophenyl) boric acid catalyst is introduced, and the first-generation Grubbs catalyst is synthesized by using dichlorophenyl ruthenium (II) dimer as a metal source raw material. A di (pentafluorophenyl) boron group at the tail end forms a superacid center due to a strong electron absorption effect, and benzaldehyde carbonyl can be efficiently activated; the dendritic skeleton provides a multi-site synergistic effect and steric configuration control, enhances the substrate enrichment and transition state stabilization capability, and significantly reduces the activation energy generated by the Ru = CHPh key intermediate, and meanwhile, the key steps of further accelerating aldol condensation, metal-carbon double bond generation and the like are combined with a proper amount of alkaline accelerator, so that the preparation method has the advantages of high yield and high yield. The efficient introduction of a benzaldehyde key C1 construction unit is realized, the reaction condition is mild, and the operation is simple and convenient.

The invention provides a fingernail integrated system for monitoring cardiovascular health of a human body, which is characterized in that firstly, a photoelectric detector device performs matching between energy bands to construct a built-in electric field through different energy band structures of materials, when light irradiates a light active layer, electron absorption energy jumps to a conduction band to generate electron-hole pairs, and the energy of the conduction band of an electron transport layer is relatively low, so that the electron-hole pairs are generated; electrons flow to the electron transport layer and are conducted away by the electrode, and holes left in a valence band flow to the hole transport layer and are conducted away by the electrode, so that the device can generate current under the condition of not applying voltage, which indicates that the photoelectric detector can operate under the condition of low power consumption; meanwhile, due to the vertical structure and the self-powered characteristic of the photoelectric detector, the area of the device can be greatly reduced, a patterned electrode can be designed, the size of the electrode can be freely adjusted, and therefore personalized and miniaturized electrode preparation is achieved.

The invention discloses a silicon nanowire water photovoltaic device, a preparation method and a water photovoltaic cell. The silicon nanowire water photovoltaic device comprises an n-type silicon nanowire layer, a top electrode arranged on the top surface of the n-type silicon nanowire layer and a bottom electrode arranged on the bottom surface of the n-type silicon nanowire layer, wherein Si-OH groups on the surface of the n-type silicon nanowire layer are at least partially substituted by chemical bonds or chemical groups with the electron withdrawing capability weaker than that of the Si-OH groups. According to the silicon nanowire water photovoltaic device, the preparation method and the water photovoltaic cell provided by the invention, Si-OH groups on the surfaces of the silicon nanowires are at least partially replaced by chemical bonds or chemical groups with relatively weak electron attraction capability, so that the number of free electrons in the silicon nanowires can be remarkably increased through the replacement; and when microcirculation caused by water evaporation enables a charge carrier in the silicon nanowire to move directionally, more electrons can participate in the process, so that the hydrovolt effect is enhanced, and the electrical property of the silicon nanowire hydrovolt device is remarkably improved.

The invention discloses a ZrO2 / TiO2 solid acid catalyst as well as a preparation method and application thereof, and relates to the technical field of catalysts. According to the catalyst provided by the invention, ZrO2 is used as an active component to be attached to the TiO2 carrier, so that a Lewis acid structure can be formed, the catalyst has an excellent electron-withdrawing characteristic, and cured silicone rubber in an insulator umbrella cover can be activated in a manner of coordination with Si-O bonds in the silicone rubber, so that the cured silicone rubber is directionally converted into DMC (dimethyl cyclosiloxane mixture) with low molecular weight. According to the present invention, with the application of the catalyst to catalytically degrade the silicone rubber umbrella cover in the decommissioned insulator, the reactant conversion rate of more than 72% can be obtained at the low temperature of less than 200 DEG C, the yield of the DMC monomer in the product can achieve more than 75%, and the low-temperature high-value recovery of the silicone rubber umbrella cover in the decommissioned composite insulator can be achieved.

The invention relates to the technical field of solar cells, and discloses a solar cell piece, a solar cell module and a photovoltaic system, a plurality of first grid lines and a plurality of second grid lines are arranged on the back face of the solar cell piece, and the first grid lines and the second grid lines are parallel in the first direction and are arranged alternately; the side edge of the back surface of the solar cell is provided with an edge grid line extending along a second direction, and the edge grid line is connected with the second grid line; first Pad points are arranged at the end parts of the solar cells along the first direction, the first Pad points are arranged along the second direction, the first Pad points are connected with the plurality of first grid lines, insulating glue is arranged on the second grid lines around the first Pad points, and the insulating glue electrically isolates the second grid lines from the first Pad points. According to the invention, edge electron absorption can be enhanced, the pseudo soldering risk is reduced, and the cost is reduced.

The application provides a direct electronic detector, which comprises a semiconductor laminated structure and a peripheral signal measurement circuit; the semiconductor laminated structure comprises, from bottom to top, a semiconductor base, a U-shaped cross-section semiconductor resistance layer, a first semiconductor layer, a second semiconductor layer, an insulating layer, a metal layer, an intrinsic layer and a third semiconductor layer; the first semiconductor layer is formed in a groove of the resistance layer, the second semiconductor layer is formed on the first semiconductor layer, the insulating layer is formed on the outside of the second semiconductor layer, and the metal layer is formed on the outside of the insulating layer; the resistance layer and the first semiconductor layer are of a first doping type, the second semiconductor layer and the third semiconductor layer are of a second doping type, the third semiconductor layer and the intrinsic layer form an electron absorption zone, and the first semiconductor layer and the second semiconductor layer form an avalanche zone; the peripheral signal measurement circuit comprises a counter; and the semiconductor laminated structure is electrically connected with the peripheral signal measurement circuit. The structure can effectively improve the sensitivity and response speed of the detector.

The present invention discloses a yellow fluorescent graphene quantum dot based on electron absorption and donation regulation, a preparation method thereof, and an application in dye detection. The graphene quantum dots (y-GQDs) of the present invention are prepared by a bottom-up hydrothermal method using 1-amino-2-naphthol-4-sulfonic acid as a precursor, acrylic acid as an acid regulator, and deionized water as a solvent. y-GQDs exhibit bright yellow light under ultraviolet light. Dye detection was performed using different dyes, and it was found that methylene blue dye had a good quenching effect on the fluorescence of y-GQDs. In addition, there was a good linear relationship between the concentration of methylene blue dye and the fluorescence intensity of y-GQDs. The y-GQDs prepared by the present invention have selective recognition of methylene blue dye and have great potential in the field of methylene blue dye detection.

Disclosed in the present invention is a stacked OLED device, comprising an anode layer, one side thereof being successively provided with a first light-emitting layer, a charge generation layer and a second light-emitting layer in a direction away from the anode layer; an electron generation layer, a first hole generation layer and a second hole generation layer are successively provided in the charge generation layer in a direction away from the anode layer; and the charge generation layer is doped with an organic material having a strong electron absorption capability, and a doping ratio of the first hole generation layer is higher than that of the second hole generation layer. The stacked OLED device of the present invention divides the charge generation layer into a plurality of thinner layers, and adjusting the thicknesses and doping ratios of the layers inside the charge generation layer enables carrier rates of adjacent layers to be matched, which avoids an obvious voltage drop at an interface between two adjacent layers caused by charge accumulation, thereby prolonging the service life of OLED devices. No metal stabilizing layer is provided in the charge generation layer, which avoids the obstruction of light extraction due to low transmittance in visible light bands, thereby improving the efficiency of OLED devices.

The invention discloses a nano-scale electromagnetic shielding coating and a preparation method thereof, and belongs to the technical field of electromagnetic shielding materials, the coating comprises nano-silver and a nano-scale dielectric material, the nano-scale dielectric material comprises nano-scale barium titanate, the nano-scale dielectric material is a resonance excitant, and the nano-scale dielectric material comprises nano-scale barium titanate. The dielectric confinement field amplifies vibration of free electrons on the surface of the nano-silver and excites the nano-silver to generate surface plasma resonance, the free electrons of the nano-silver absorb energy of electromagnetic waves, and the energy is converted into heat energy through interaction of the electrons and crystal lattices, so that resonance loss of the electromagnetic energy is achieved, and the purpose of shielding the electromagnetic waves is achieved. Compared with the prior art, through the synergistic effect of the nano-silver and the nanoscale dielectric material, the electromagnetic shielding potential of the nano-silver is more fully utilized, electromagnetic waves are reflected, and electromagnetic energy is absorbed through resonance, so that the shielding performance of the coating is remarkably improved, and efficient electromagnetic shielding is realized in a wider frequency band; the method is especially suitable for scenes with strict electromagnetic environment requirements.

The invention relates to a conical electric field air axial acceleration electrode, which is characterized in that maximum electron migration is generated by utilizing the strength difference of electron binding capability of a conductor, air axial acceleration in a conical electric field is formed, and a chargeable substance is driven to move. Comprising a direct-current power supply, paired and relatively asymmetric electrodes, an electrode insulating support and an air flow channel. Under the action of direct current, electrons between the tip or wire electrode with weak electron binding capability and the net and ring electrode with strong electron absorbing capability move to generate air and axial acceleration of substances in the air, so that the air and suspended substances are pushed to flow and be collected.

This invention discloses a super-resolution stimulated Raman scattering imaging method for drug distribution detection, comprising the following steps: The laser output from a laser is frequency-doubled and spatially shaped to generate three laser beams, one used as a Stokes beam, one as a pump beam, and one as a saturation beam; the Stokes beam and the pump beam are spatially collinear; the three beams are temporally coupled; the beams are connected to the scanning section of a microscope system; a digital acquisition card acquires signals, obtaining the modulation response of the pump beam to the Stokes beam, thereby monitoring drug distribution. This invention also discloses the application of this super-resolution stimulated Raman scattering imaging method for drug distribution detection in the cellular targeting and intracellular distribution of drugs in the nervous system. By controlling the spatial distribution of the laser, this invention enables a portion of molecules within the focal point to be in an electron absorption saturation state, which can suppress the pump detection signal and break the diffraction limit of non-fluorescent substances in far-field imaging.

The invention discloses a high-strength ceramic rock plate and a preparation method thereof, and belongs to the technical field of ceramic materials. According to the invention, sintering is carried out in a solar sintering furnace body, such that the sintering temperature of the ceramic rock plate can be substantially reduced because crystal lattices absorb solar energy to generate crystal lattice vibration, high-energy photons in sunlight are absorbed by electrons in a ceramic rock plate blank material to generate optical transition, and then electron-phonon scattering is carried out, such that the sintering temperature of the ceramic rock plate can be substantially reduced. Energy is transferred from high-energy electrons to crystal lattices to provide heat energy, so that main crystal phases, namely mullite and quartz crystals, of the ceramic rock plate can be generated at a relatively low temperature; besides, a large amount of needle-rod-shaped mullite in the fired ceramic rock plate is embedded in a glass phase to form a framework in the ceramic rock plate together with quartz, and the framework has good stability and can play a good role in reinforcing and toughening when the rock plate is impacted by external force, so that the breaking strength of the ceramic rock plate is improved. Therefore, the method has a good application prospect.