141 results about "Cell substrate" patented technology

The embodiment of the invention relates to the photovoltaic field, and provides a photovoltaic cell and a manufacturing method thereof, a laminated cell and a photovoltaic module, and the photovoltaic cell comprises a cell substrate which is provided with a first surface and a second surface which are opposite to each other; the grid lines are located on the first face and / or the second face and arranged at intervals in the first direction, each grid line comprises a contact structure and a connecting layer which are electrically connected with the battery substrate, and each contact structure comprises a plurality of contact parts; the contact part comprises a first contact part and a second contact part which are alternately arranged in the second direction, the connecting layer is provided with a first side part and a second side part which are opposite in the first direction, the first contact part is at least in contact connection with the first side part, and the second contact part is in contact connection with the second side part; the second contact part is at least in contact connection with the second side part, and the first contact part is in contact connection with the first side part, thereby at least facilitating the improvement of the electrical connection performance of the grid line and the battery substrate and the reduction of the manufacturing cost of the grid line.

The present application relates to the technical field of semiconductors, and discloses a back-contact cell and a manufacturing method therefor, for use in preventing electric leakage and improving the electrical stability of the back-contact cell. The back-contact cell comprises a cell substrate, and a first electrode and a second electrode which are formed on a non-illuminated surface of the cell substrate. The non-illuminated surface of the cell substrate comprises first areas and second areas which are alternately distributed. The first areas and the second areas have opposite conductivity types. The projection of at least part of the first electrode on the non-illuminated surface is located in the first areas. The projection of the second electrode on the non-illuminated surface is located in the second areas. Each of the first electrode and the second electrode comprises a plurality of current collector electrodes and a plurality of busbar electrodes. In a second direction, the distance between the end of each current collector electrode segment in the first electrode and an adjacent busbar electrode comprised in the second electrode is a first distance. In the second direction, the distance between the end of each current collector electrode segment in the second electrode and an adjacent busbar electrode comprised in the first electrode is a second distance. The first distance is different from the second distance.

The invention discloses a boron diffusion method of a solar cell and the solar cell. The boron diffusion method comprises the following steps: forming a boron-doped layer for a cell substrate in an oxidation furnace tube to obtain a primarily-doped boron substrate, the boron-doped layer comprising a deep-junction boron diffusion layer and a borosilicate glass layer which are laminated from inside to outside; taking out the primarily-doped boron matrix from the oxidation furnace tube, and cooling the primarily-doped boron matrix until the cooled temperature is not higher than 200 DEG C; putting the cooled primarily-doped boron substrate into the preheated oxidation furnace tube again, and heating the primarily-doped boron substrate in an oxygen-free environment to activate non-active boron atoms in the boron-doped layer; and carrying out oxidation source absorption treatment on the deep-junction boron diffusion layer in the primarily-doped boron substrate, and redistributing boron atoms in the deep-junction boron diffusion layer. According to the boron diffusion method, the amount of active boron atoms contained in the surface of the deep-junction boron diffusion layer of the solar cell is increased, the boron doping concentration peak value in the deep-junction boron diffusion layer is reduced, the boron doping concentration distribution is relatively uniform, and the contact resistance between the metal electrode and the deep-junction boron diffusion layer is reduced.

The embodiment of the invention relates to the photovoltaic field, and provides a photovoltaic cell and a photovoltaic module, and the photovoltaic cell comprises a cell substrate which is provided with two opposite edge regions along a first direction and a central region located between the two edge regions; the plurality of grid lines are positioned on the battery substrate and are arranged at intervals along a first direction; the first welding spots and the second welding spots are located on at least part of the edge areas, the second welding spots are located on the areas, close to the central area, in the edge areas, the first welding spots are located on the sides, away from the central area, of the second welding spots, and the orthographic projection area of the first welding spots on the battery substrate is smaller than that of the second welding spots on the battery substrate; the first connecting lines are located on at least a part of the edge areas, the first connecting lines are in contact connection with the first welding spots and the second welding spots, and are in contact connection with a plurality of grid lines located on the sides, away from the central area, of the second welding spots, and the transmission efficiency of carriers in the photovoltaic cell is at least improved.

A back contact cell includes a cell substrate and first insulation members. Fingers having two polarities are alternately arranged on a back surface of the cell substrate. The back surface includes current collection regions and non-current collection regions which are distributed in a staggered manner. The first insulation members are arranged at edges of the non-current collection regions in a continuous manner in an extension direction of the current collection regions, and cover portions of the fingers located in the non-current collection regions close to the current collection regions.

The embodiment of the invention relates to the photovoltaic field, and provides a back contact cell, a back contact laminated cell and a photovoltaic module, and the back contact cell comprises a cell substrate which comprises at least one isolation region extending in a first direction and two unit regions located at the two opposite sides of the isolation region; each unit region comprises a first doped region and a second doped region which are spaced from each other, and the isolation region is located between the first doped region of one unit region and the second doped region of the other unit region in the two adjacent unit regions; the battery substrate located in the isolation region comprises at least one isolation group, the isolation group comprises a first isolation part and a second isolation part, the first isolation part and the battery substrate located in the first doped region have first type doping elements, and the second isolation part and the battery substrate located in the second doped region have second type doping elements; in the first and second isolation parts belonging to the same isolation group, the first isolation part is located between the second isolation part and the second doped region, and at least the insulation performance of the isolation region can be improved by means of the isolation group.

The invention relates to the technical field of solar cells, and discloses a back contact solar cell and a cell module. The battery comprises a battery base body with a light receiving face and a backlight face, the backlight face comprises first polarity areas and second polarity areas which are alternately arranged, isolation areas are arranged between the first polarity areas and the second polarity areas, and the battery base body further comprises boss structures formed by protruding the surfaces of the first polarity areas and / or the surfaces of the second polarity areas towards the isolation areas; and the interface optimization structure is convexly formed on at least part of the side wall surface of the isolation region and comprises at least one optimization unit, one end of the optimization unit is connected with the boss structure, and the other end of the optimization unit is spaced from the bottom surface of the isolation region. The boss structure enables the effective printing area of the first polarity area and the second polarity area to be increased, and the positioning difficulty of printing is reduced; according to the interface optimization structure, the area of the p-n junction is increased, the efficiency of separating electron-hole pairs by a built-in electric field is improved, the carrier separation and transmission efficiency is improved, and the current output efficiency and the overall electrical performance are improved.

The invention relates to the photovoltaic field, and provides a photovoltaic cell and a manufacturing method thereof, a laminated cell and a photovoltaic module, and the manufacturing method comprises the steps: providing a cell substrate which is provided with two opposite surface sides; forming a seed layer on the at least one surface side; printing a first paste on the surface side on which the seed layer is formed, the first paste including first conductive particles and second conductive particles, the silver content of the first conductive particles being lower than the silver content of the second conductive particles; modifying the first slurry to convert the first slurry into a transmission layer, and forming a grid line by the seed layer and the transmission layer; in the modification treatment step, a part of second conductive particles are connected with a part of first conductive particles to form a conductive connecting part, and / or each first conductive particle comprises an inner core and an outer layer, and a part of second conductive particles and a part of outer layers are connected into a whole and then are connected with the inner core to form a conductive connecting part; and the collection efficiency of the grid line to the current carriers is at least improved.

The invention relates to the technical field of biology, in particular to an MDCK cell strain and application of the MDCK cell strain in preparation of influenza vaccines. The invention provides an MDCK cell strain, the preservation number of which is CCTCC NO: C202504. The cell strain not only can maintain high sensitivity and high yield to influenza viruses and ensure the yield and quality of vaccines, but also can remarkably improve the biological safety of cell matrix influenza vaccines due to elimination of tumorigenicity risk, and has a good application prospect. And a key technical support is provided for promoting domestic research and development and marketing of influenza vaccines based on cell culture.

A method for in situ differentiation of stem cells within a cell culture bioreactor is provided. The method includes providing a bioreactor vessel having a cell culture chamber, the cell culture chamber having an inlet for introducing fluid into the cell culture chamber and an outlet for introducing fluid out of the cell culture chamber. The bioreactor vessel also includes a cell substrate disposed within the cell culture chamber for culturing cells on the cell substrate. The method includes seeding undifferentiated stem cells onto the cell substrate within the cell culture chamber and perfusing the cell culture chamber with a differentiation medium to promote differentiation of the undifferentiated stem cells into specific cell lineages, thereby causing the undifferentiated stem cells to become differentiated cells.

The present disclosure provides a solar cell, and a photovoltaic module and a manufacturing method therefor. The solar cell comprises a cell substrate (100), back electrodes (110) and a conductive enhancement layer (120); a plurality of back electrodes (110) are provided, and the plurality of back electrodes (110) are arranged on the backlight surface of the cell substrate (100); and the conductive enhancement layer (120) is arranged on the side of the back electrodes (110) distant from the backlight surface, the conductive enhancement layer (120) is connected to the plurality of back electrodes (110), and the conductive enhancement layer (120) covers at least part of the backlight surface of the cell substrate (100).

The invention belongs to the technical field of vaccine preparation, and particularly relates to a method for suspension culture of rabies virus. MDCK-siat7e-C is used as a cell matrix for suspension culture of the rabies virus, experiments prove that the rabies virus can be subcultured in the cell, the virus titer can reach 7-81gFFU / ml, and through mouse immunogenicity inspection, the protection index is greater than 100, and the antibody titer reaches 67IU / ml after mice are immunized. The method for suspension culture of the rabies virus by the cell strain provides reference for suspension culture of the rabies virus.

A method of coating a cell culture substrate in situ in a bioreactor is provided that includes providing a bioreactor vessel having a cell culture chamber with an inlet for flowing fluid into the cell culture chamber and an outlet for flowing fluid out of the cell culture chamber, and a cell substrate disposed in the cell culture chamber for culturing cells. The method includes providing a coating solution for coating the cell substrate; inputting the coating solution into the cell culture chamber such that the coating solution contacts the cell substrate; and removing an excess of the coating solution from the cell culture chamber. After removing the coating solution, a coated cell substrate remains in the cell culture chamber.

The invention relates to a method (100) for producing an electrochemical cell element (10) comprising an electrochemical cell (14), in particular an electrolysis cell (14), and an interconnector (24), the electrolysis cell (14) having at least three functional layers (26) and a metal cell substrate (22), the interconnector (24) having projections (16). According to the invention, the interconnector (24) is connected to the cell substrate (22) by means of a plurality of micro-welded connections (34), each micro-welded connection (34) being arranged on a projection (16).

This invention belongs to the field of cell sample detection and provides a microfluidic chip for separating circulating tumor cells (CTCs) based on size and aptamers. The invention includes a functional layer with a sample outlet and a sample inlet, and a cell substrate disposed on the upper and lower surfaces of the functional layer. The sample outlet and sample inlet of the functional layer are connected by a separation channel, which includes at least one micropillar array capable of carrying an EpCAM aptamer. The micropillar array is composed of a capture channel surrounding at least two micropillar structures. One end of the micropillar array is connected to the sample inlet, and the other end of the micropillar array has a gradient retention channel connected to the sample outlet. The microfluidic chip uses EpCAM aptamers to modify the micropillar array, increasing the number of collisions between CTCs and the chip, and increasing the probability of collisions between circulating tumor cells and the aptamers on the micropillar surface. Secondly, by utilizing the high specificity of the aptamer for tumor cells, the accuracy and specificity of separation are improved.

A method is proposed for detecting at least one fluorescence pattern on an immunofluorescence image of a biological cell substrate, comprising the following steps: incubating the cell substrate with a liquid patient sample, which potentially includes primary antibodies, and furthermore with secondary antibodies, which are marked using a fluorescence stain, irradiating the cell substrate using excitation radiation and capturing the immunofluorescence image, determining segmentation information comprising at least one first and one second segmentation area, wherein the segmentation areas each represent a respective cell substrate area, via segmentation of the immunofluorescence image using a first neural network, determining a boundary area, which represents a transition from the first cell substrate area towards the second cell substrate area in the fluorescence image, on the basis of the segmentation information, selecting multiple partial images from the immunofluorescence image along the boundary area, determining a confidence measure of a presence of the fluorescence pattern on the basis of the multiple partial images via a second neural network.

The invention relates to a method (10) for producing an electrochemical cell (12), in particular an electrolysis cell (14), comprising a cell substrate (16), a first electrode layer (26), a second electrode layer (32), an electrolyte layer (28) situated between the first electrode layer (26) and the second electrode layer (32), and a first barrier layer (22) situated between the cell substrate (16) and the first electrode layer (26), the first barrier layer (22) being deposited onto the cell substrate (16) by means of a physical vapor deposition (PVD) process, and the first barrier layer (22) having a cerium oxide which has a first doping with a rare earth element. According to the invention, the cerium oxide has a second doping with a transition metal from the fifth subgroup or sixth subgroup.

The invention relates to a method for stably incorporating nanobubbles and / or nanodrops of oxygen into hydrogels for biological and regenerative medicine applications, wherein gas micro / nanobubbles (MNBs) and / or micro / nanodrops (MNDs) are formed using compression and expansion cycles in a closed system, by means of cavitation by vacuum degassing before polymerising the hydrogel. The invention also relates to the hydrogel formed and the use thereof: as a biological substrate for tissue regeneration / generation; as a biological matrix as a cell substrate for cell invasion; to supply oxygen and, optionally, active components such as drugs, growth and / or migration factors, antibodies, peptides, vesicles, cellular derivatives and / or oligonucleotides, to tissues.

The invention relates to a manufacturing method and device of a silicon-based perovskite laminated cell, and the method comprises the steps: carrying out the texturing processing and cleaning of a silicon substrate, and obtaining a processed silicon substrate; forming a passivation layer and a heterojunction layer on the surface of the treated silicon substrate to obtain a heterojunction silicon-based bottom battery; forming a perovskite top cell film system structure and a transparent electrode layer for the heterojunction silicon-based bottom cell to obtain a laminated cell substrate; carrying out annealing treatment on the transparent electrode layer of the laminated cell substrate by using excimer laser annealing equipment; and forming metal grid line electrodes on the front and back surfaces of the laminated cell substrate to obtain the silicon-based perovskite laminated cell. According to the method, the transparent electrode layer is annealed through the excimer laser annealing technology, the photoelectric property of the transparent electrode layer can be remarkably improved, the uniformity and stability of the perovskite layer are remarkably improved, and therefore the overall photoelectric conversion efficiency and reliability of the perovskite / crystalline silicon laminated solar cell are improved.

The invention relates to the technical field of conductive silver paste, in particular to perovskite silver paste and a preparation method and application thereof.The perovskite silver paste is prepared from, by mass, 2-5 parts of sericin nano-silver, 78-92 parts of spherical silver powder and 6-13 parts of organic carriers, and the organic carriers comprise resin, a solvent, a curing agent and auxiliaries. According to the perovskite silver paste provided by the invention, sericin nano-silver with the particle size D50 larger than or equal to 10 nm and smaller than or equal to 50 nm is added, hydrogen bonds or chemical bonds can be formed on the surface of a silicon wafer, the bonding strength of the silver paste and a cell substrate is improved, the grid line falling risk is reduced, and meanwhile the service life of an electrode is prolonged.

The invention relates to an electrode preparation method and device and a solar cell, an organic polymer thin film is formed on the surface of a cell substrate, the organic polymer thin film is etched to form a groove penetrating through the organic polymer thin film, the width of the groove can be smaller at the moment, slurry is filled in the groove, and the thickness of the groove is reduced. And the preparation of the electrode is completed after the residual organic polymer film is removed. According to the electrode preparation method, the electrode with smaller width and higher resolution can be prepared, the shading rate of the solar cell can be reduced, the contact resistance can be improved, and the photoelectric conversion efficiency of the solar cell can be improved.

The invention provides a back contact battery, a battery assembly and a photovoltaic system. The back contact battery comprises a battery substrate, the battery substrate is provided with a first surface and a second surface which are opposite to each other, the first surface comprises a first edge and a second edge which are arranged along a first direction, the first edge and the second edge extend along a second direction, and the first direction and the second direction intersect; the doping layer is arranged on the first surface; the plurality of fine grids are arranged on the doping layer, and the plurality of fine grids are arranged along the first direction and extend along the second direction; wherein the first surface further comprises a first overlapping area and a non-overlapping area which are sequentially arranged in the first direction, the first overlapping area is used for being overlapped with an adjacent battery piece in the battery assembly, and all fine grids of the back contact battery are located in the non-overlapping area.

The invention discloses a back contact cell and a preparation method, and is applied to the field of photovoltaic cells. In the first direction, the back surface of the cell substrate is provided with first areas and second areas which are alternately arranged, the first areas are provided with first type structures, and the second areas are provided with second type structures; in the second direction, a first type structure and a second type structure are partially stacked between the first region and the second region, and an isolation layer is arranged between the first type structure and the second type structure which are stacked; the first type structure comprises a first dielectric layer and a first type polycrystalline silicon layer, and the second type structure comprises a second dielectric layer and a second type polycrystalline silicon layer; the first region is provided with a first electrode which is in contact with the first type polycrystalline silicon layer, and the second region is provided with a second electrode which is in contact with the second type polycrystalline silicon layer. The first type structure and the second type structure are effectively isolated through the isolation layer, and the photoelectric conversion efficiency of the cell is improved.

Provided are a memory device, a method of fabricating the same, and an electronic system including the same. The memory device includes a peripheral circuit structure and a cell structure on the peripheral circuit structure. The cell structure comprises a cell substrate including a first surface facing the peripheral circuit structure and a second surface opposite to the first surface and having a first conductivity type, gate electrodes on the first surface of the cell substrate, a channel structure intersecting the gate electrodes and connected to the cell substrate, a first impurity region that is in the cell substrate adjacent to the second surface and has a second conductivity type, and a second impurity region that is in the cell substrate and is spaced apart from the first impurity region, the second impurity region having the first conductivity type with a higher impurity concentration than that of the cell substrate.

The invention relates to the field of solar cells, and discloses a solar cell, a preparation method thereof and a photovoltaic module. The solar cell comprises a cell substrate, wherein at least one side surface of the cell substrate is provided with a groove structure; the electrode structure is arranged at the groove structure, the electrode structure comprises a conductive metal layer, the conductive metal layer comprises a first sub-part and a second sub-part which are connected, the groove structure is filled with the first sub-part, and the second sub-part is exposed out of the battery substrate; the surface of the second subpart is coated with the anti-oxidation layer, the oxidation resistance of the anti-oxidation layer is higher than that of the conductive metal layer, and the anti-oxidation layer is configured to be prepared by placing the battery substrate containing the conductive metal layer in a reaction solution containing anti-oxidation metal ions; along the thickness direction of the cell substrate, the H1 of the first sub-part and the H2 of the second sub-part satisfy the following conditions: 1 < = H1 < 3 [mu] m, and 5 < = H2 < = 15 [mu] m. The electrode structure on the solar cell is high in stability and good in current collection effect.

The invention discloses a back contact solar cell and a photovoltaic module, and relates to the technical field of solar cells, and the back contact solar cell comprises a cell substrate which is provided with a first surface and a second surface which are opposite to each other; the front field film layer structure is arranged on the first surface; the back field electrode structure is arranged on the second surface; wherein the side wall of the cell substrate is provided with a functional layer, the functional layer comprises a first material, and the first material is used for increasing the number of carriers on the side wall of the back contact solar cell based on the singlet exciton fission multiplication effect. According to the back contact solar cell, the functional layer with the singlet exciton fission function is arranged on the side wall of the cell substrate, after sunlight irradiation, more carriers are generated based on the singlet exciton fission multiplication effect and enter the cell substrate through the side wall, the number of the carriers in the cell is increased, and then the photovoltaic performance of the back contact solar cell is improved.

The invention discloses a preparation method of a perovskite absorption layer and a solar cell. The preparation method of the perovskite absorption layer comprises the steps that under the mixed atmosphere of Ar and F2, an interface layer is deposited on a cell substrate through magnetron sputtering by means of a target material prepared through pre-sintering, and the target material comprises PbI2 and other metal halides in a set proportion; switching F2 into H2, and depositing a mesoporous layer on the cell substrate through magnetron sputtering by using a target material prepared by pre-sintering in a mixed atmosphere of Ar and H2; the mesoporous layer is coated with a solution containing AX, annealing treatment is carried out, the perovskite absorption layer is formed, A comprises formamidine and / or methylamine, and X comprises halogen. The proportion of each component of the perovskite absorption layer is effectively controlled, so that the carrier transmission capability and the carrier collection capability of the perovskite solar cell are improved, and the stability of the perovskite solar cell can be improved.

The invention discloses a battery piece preparation method and a battery piece, and the method comprises the following steps: forming a seed layer on a first surface of a battery piece substrate; forming a mask layer on the seed layer, wherein the mask layer is provided with a mask opening communicated with the seed layer; forming a first protection layer on the second surface of the cell substrate; electroplating in the mask opening to form a metal grid line; and removing the mask layer and the first protection layer. The first protection layer is formed on the second surface of the cell substrate, so that the'pyramid 'suede on the second surface of the cell substrate can be protected from being damaged in each process operation.

The invention is suitable for the technical field of solar cells, and provides a solar cell grid line preparation process and a solar cell, and the solar cell grid line preparation process comprises the following steps: providing a cell substrate; preparing a seed layer on the surface of a to-be-prepared grid line of the battery substrate; electroplating the seed layer to form a whole-surface metal layer; preparing a patterned mask on the metal layer, wherein the patterned mask is provided with an opening corresponding to the non-grid line area; and removing the metal layer and the seed layer in a non-grid line area, and removing the mask in a grid line area to form a grid line. The solar cell grid line preparation process provided by the invention has lower requirements on the precision of electroplating equipment, can reduce the electroplating cost, can make the thickness of the prepared grid line more uniform, facilitates the improvement of the current collection capability of the grid line, and facilitates the mass production of solar cells.