104 results about "Electron absorption" patented technology

A method to repair a scattering stencil type mask having a high electron beam scattering property and low electron absorption. In order to correct a defect caused at the time of manufacturing of the mask, which is being used when a reduction projection image is transferred onto a substrate and has a pattern projection portion comprising an electron beam scattering material, a repair membrane is formed in the defective portion of the mask by irradiating a charged particle beam to said defect while a gas including substances having high scattering properties are supplied to the close vicinity of the defective portion.

A toner including at least a binder resin; a colorant; and a charge controlling agent, in which the binder resin includes at least a polyester resin having a molecular weight distribution such that components having a molecular weight not greater than 500 are included in an amount of 4% by weight and at least a peak is present in a range of from 3,000 to 9,000 when measured by Gel Permeation Chromatography. In addition, the binder resin does not include a tetrahydrofuran-insoluble compound and the charge controlling agent is a resin charge controlling agent including at least units obtained from a monomer including a sulfonate group; an aromatic monomer including an electron absorption group; and an acrylic ester and/or a methacrylic ester monomer.

A shield assembly for an x-ray device is disclosed herein. The shield assembly includes a radiation shielding layer comprised of a first material; and a thermally conductive layer attached the radiation shielding layer. The thermally conductive layer is comprised of a second material. The shield assembly also includes an electron absorption layer attached to the radiation shielding layer. The electron absorption layer is comprised of a third material. The electron absorption layer is configured to absorb backscattered electrons.

The invention discloses a novel CH3NH3PbI3/polyimide composite material and a preparation method thereof. The preparation method comprises the following steps: (1) preparation of CH3NH3I and CH3NH3PbI3; (2) preparation of polyimide; (3) preparation of the CH3NH3PbI3/polyimide composite material, i.e., dissolving the prepared polyimide into dimethyl formamide, adding the CH3NH3PbI3 into a solution, stirring with great force under room temperature, pouring an obtained uniform mixture onto a glass plate with a silica gel mould, performing programmed heating in a muffle furnace, after heating is ended, cooling to room temperature, and stripping to obtain a CH3NH3PbI3/polyimide composite film. According to the CH3NH3PbI3/polyimide composite material prepared by the preparation method, a perovskite/polyimide composite material is prepared by means of excellent film-forming property of the polyimide; electrical property of perovskite and mechanical property of the polyimide are both achieved; the CH3NH3PbI3 can serve as an electron absorption layer, the polyimide can serve as a hole transport layer, thus forming a perfect conductive network and facilitating the application of a perovskite composite material in a solar cell.

The invention provides measuring equipment of an electron accelerator output beam parameter. The measuring equipment comprises: an electron absorption board (8) and a plurality of electron absorption rods (7), wherein the each electron absorption rod is insulated with other components. The electron absorption rods possess a same rectangular section which is parallel to the electron absorption board. A length direction is parallel to the width direction of an accelerator scanning output window (11). Side surfaces with the same width of the electron absorption rods are vertical to an electron ray direction which is located in a position of the electron absorption rods. The electron absorption board and each electron absorption rod are connected to a current measurement device through leads respectively. Compared to the prior art, by using the measuring equipment of the invention, the electron beam energy measurement is integrated with the scanning uniformity measurement. Therefore, amounts of the accelerator output beam, a spectral distribution situation, the scanning uniformity can be simultaneously determined. The equipment and the apparatus needed by electron beam output parameter measurement can be simplified. In the prior art, the different apparatuses are needed by the electron beam energy measurement and the electron beam scanning uniformity measurement. By using the measuring equipment of the invention, the above problem can be solved.

The invention discloses a collecting electrode used for a traveling wave tube and a manufacture method thereof. The collecting electrode used for the traveling wave tube comprises an oxygen-free copper inner core (1), wherein a graphite loading head (2) in a conical structure is nested inside one end of the oxygen-free copper inner core (1) near an collecting electrode opening, the contact part of the oxygen-free copper inner core (1) and the graphite loading head (2) is filled with welding flux (3), in addition, the oxygen-free copper inner core (1) and the graphite loading head (2) are connected in a brazing way, and a ring (4) which is made of ultraperm and used for preventing the pull cracks of the graphite loading head (2) caused by heat expansion of the oxygen-free copper inner core (1) is sheathed on the outer ring of one end of the oxygen-free copper inner core (1) provided with the graphite loading head (2). The oxygen-free copper inner core and the graphite loading head of the collecting electrode used for the traveling wave tube with the structure are connected in the brazing way, so good heat conductive performance of the collecting electrode is ensured, in addition, the front end of the graphite loading head is processed into a conical shape, and the invention is more favorable for the electron absorption.

The invention relates to a Salen catalyst using CN as an axial ligand, and a preparation method and application thereof. The method comprises the following preparation steps of (1) synthesizing Salen H2; (2) performing mixing reaction on the Salen H2 with metal M salt ethyl alcohol solution to synthesize Salen-M; (3) performing mixing reaction on the Salen-M and the metal cyanide solution to synthesize the Salen catalyst using CN as the axial ligand. Compared with the prior art, the method has the advantages that the cyano group with strong electron absorption capability is used as the axial ligand; the catalyst is stable; the deterioration and inactivation cannot easily occur; in a reaction process of catalyzing the copolymerization of carbon dioxide and epoxypropane to synthesize polycarbonate, the inhibition of the generation of cyclic carbonates byproducts is facilitated; the reaction window is widened; under the high-temperature polymerization condition, the activity of the Salen catalyst can be greatly improved.

The invention discloses a MgIn2S4-based intermediate band solar energy absorbing material and a preparation method thereof, wherein the chemical formula is MgIn2-xSnxS4, 0 < x < 2, obtained by vacuumsolid-state reaction sintering process through the formation of a half-full intermediate band in the in-site doping element Sn of the parent compound MgIn2S4; Compared with the traditional solar cellmaterials, the above materials increase the electron absorption path and enhance the light absorption capacity.

The invention discloses a double-electrode perovskite solar battery and a preparation method thereof. The battery includes a transparent conducting substrate, a semiconductor electron absorption layer, a perovskite thin film, (a hole transfer layer) and a double-layer carbon electrode superposed in sequence. As for the double-layer carbon electrode, the first layer electrode is a structural layerhaving charge selective absorption and longitudinal transmission functions and capable of increasing the contact area between perovskite or the hole transfer layer and the carbon electrode, so that alarge size of a micron order non-contact area is avoided and charge transmission distance is reduced, and holes can be extracted timely and recombination of electrons and the holes is reduced; the second layer electrode is a structural layer having a good transverse charge transmission function and facilitating timely converged exporting of holes in the electrode, so that the battery efficiency isimproved. According to the invention, good contact of the carbon electrode in the perovskite solar battery and perovskite and the electrical conductivity of the carbon electrode are both taken into account, so that advantages of simple preparation, good economical performance and practicability and batch production convenience are achieved.

The invention provides an electron-transport polymer semiconductor material based on pyridine substituted pyrrolopyrroledione and applied to an organic field effect transistor. The material is represented as the structural formula (I). In the material, pyridine substituted pyrrolopyrroledione, having strong electron absorption capability and good planarity, serves as a first polymerization monomerand tetrafluorobithiophene and tetrafluorobithiophene ethylene serve as second polymerization monomers; a plurality of fluorine atoms are introduced onto the thiophene unit, so that highest occupiedmolecular orbital (HOMO) energy level and lowest unoccupied molecular orbital (LUMO) energy level of the polymer are both reduced, and the polymer shows an n-type transportation character. By means ofthe weak interactions of F-S and F-H, interchain interaction of the polymer is improved, so that the organic field effect transistor with the polymer semiconductor material has high electron mobilitycapable of reaching up to 2.45 cm<2>/V*s.

A rapid data recording/reproducing method, a data recording system adopting the same, media for the system, and a tracking method, wherein the recording/reproducing method includes preparing media having a data recording layer in which a phase change is generated through electron absorption, generating electrons using an electron generating source at a position separated from the data recording layer by a predetermined interval, forming a magnetic field on the path of the electrons and cyclotron moving the electrons, recording data through local melting and cooling due to absorption of the electrons by the data recording layer. A micro-tip does not contact the data recording layer during electron collisions therewith, hence no damage is caused by or to the micro-tip. The present invention allows the region where the electron beam reaches the data recording layer to be minimized thereby maximizing the data recording density.

The invention discloses a low cost perovskite solar cell being suitable for production, and a preparation method thereof. The solar cell comprises a light transmission/transparent electrode layer, an electronic transmission layer, a light-absorption layer, an electronic absorbing layer, a cavity transmission layer and a top electrode, wherein the light transmission/transparent electrode layer, the electronic transmission layer, the light-absorption layer, the electronic absorbing layer, the cavity transmission layer and the top electrode are stacked successively; the light-absorption layer is provided with a material with a perovskite structure; the electronic absorbing layer is formed by fullerene derivatives; the cavity transmission layer is formed by ternary oxides; and the top electrode is formed by materials with good conductivity. The low cost perovskite solar cell effectively utilizes the performance of perovskite materials, and improves the photoelectric conversion efficiency of a perovskite solar cell by more than 17%, and is suitable for volume production.

The invention belongs to the technical field of luminescence and display, and particularly relates to a D-pi-A type AIE-TADF near-infrared luminescent material and a preparation method and application thereof. According to the near-infrared luminescent material, phenyl dicyanoquinoxaline with strong electron absorption is used as an acceptor (A) unit, and triarylamine[diphenylthiophenamine, di(4-methoxyphenyl)thiophenamine and di(4-fluorophenyl)thiophenamine] with strong electron donating is used as a donor (D) unit. The near-infrared luminescent material is high in thermal stability and has excellent carrier transport performance and photoluminescence performance, and the fluorescence quantum efficiency of the near-infrared luminescent material is 27%, so that the near-infrared luminescent material is widely applied to the fields of organic electroluminescent displays, biological imaging and the like.

The invention discloses a high-efficiency perovskite solar cell and a preparation method thereof. The perovskite solar cell comprises a light transmission/transparent electrode layer, a transition layer, an electron transport layer, a light absorption layer, an electron absorption layer, a hole transport layer, and a top electrode which are successively stacked. The transition layer is an oxide of nickel. The electron transport layer is a quaternary oxide. The light absorption layer is a material provided with perovskite structure. The electron absorption layer is formed by fullerene derivative. The hole transport layer is formed by a ternary oxide. The top electrode is formed by a material with good conductivity. The high-efficiency perovskite solar cell effectively utilizes the performance of the perovskite material, is increased in the photoelectric converting efficiency by over 20 percent, and is suitable for batch production.

The electronic smoke and dust absorbing technology as one new technology includes ionizing and charging smoke and dust particles with high voltage static electricity and then deflecting and absorbing the charged smoke and dust particles with strong electric field. The environment protecting electronic kitchen fume eliminator and electronic smoke and dust absorber developed on the new technology can recover and filter fume, smoke and dust, produce negative oxygen ion and freshen and sterilize air, and is healthy. Compared with a common kitchen fume eliminator, the environment protecting electronic kitchen fume eliminator has one increased electronic fume recovering unit, which consists of mainly four parts of high voltage fume ionizing electrode, electrostatic fume deflecting and collecting board, oil liquid recovering tray, and high voltage power source with two output high voltages and automatic protecting function.

The invention discloses a hexaazabenzophenanthrene trianthraquinone derivative and a synthesis method thereof. The general structural formula of the hexaazabenzophenanthrene trianthraquinone derivative is asshown in the specification. In the general structural formula, R is a C6-C40 alkyl group, C6-C40 alkyl ester, C6-C40 alkylamide; or two ortho-position Rs synthesize C6-C40 substituted imide. The hexaazabenzophenanthrene trianthraquinone derivative can effectively improve the electron absorption capacity of hexaazabenzophenanthrene, and is a novel N-type semiconductor material. Meanwhile, the synthetic method is short in synthetic route, simple and convenient to operate, mild in reaction condition and easy to control, and does not need special equipment.