92 results about "Cell substrate" patented technology

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 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 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 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 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 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 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.

The invention relates to the photovoltaic field, and provides a photovoltaic cell preparation method, a sintering device, a photovoltaic cell and a photovoltaic module, the photovoltaic cell preparation method comprises the following steps: providing a cell substrate; preparing a copper paste layer on the surface of the cell substrate; performing first microwave treatment on the battery substrate, and heating the copper paste layer to a first temperature; performing second microwave treatment on the battery substrate, and heating the copper paste layer to a second temperature; the first temperature is lower than the second temperature; and the copper paste layer is subjected to electromagnetic treatment, and the copper paste layer forms an electrode, so that good ohmic contact and sintering cost are considered.

The invention discloses a preparation method of a perovskite solar cell and the perovskite solar cell. The preparation method comprises the following steps: step 1, spraying a perovskite precursor solution on the surface of a cell substrate in an ink-jet printing mode, synchronously heating the cell substrate, and crystallizing the perovskite precursor solution to form a perovskite thin film; the surface of the cell substrate is a textured structure or a light trapping structure with certain roughness, and the step 1 is cycled until the total thickness of the cyclically prepared multi-layer perovskite thin film reaches a preset thickness, and then the step 2 is executed; and 2, fusing a plurality of layers of perovskite films into a perovskite film layer with an integrated structure. According to the preparation method, the uniformity of the perovskite film layer can be ensured, and the perovskite film layer can grow according to the surface morphology of the cell substrate for a suede structure of any size or the surface of the cell substrate of any roughness, so that the photoelectric conversion efficiency of the perovskite solar cell is improved.

The present application discloses a method for preparing a perovskite layer, a tandem solar cell, and a preparation method. The method for preparing a perovskite layer comprises the following steps: S1, providing a cell substrate (1), and co-evaporating lead iodide and cesium bromide onto a surface of the cell substrate by a co-evaporation method to obtain a lead iodide / cesium bromide thin film (L1); S2, depositing an ion diffusion material on the surface of the lead iodide / cesium bromide thin film in S1 by a vapor deposition method to obtain an ion diffusion layer (L2); and S3, applying an ammonium salt precursor solution on the surface of the ion diffusion layer in S2 by a spin coating method, and performing annealing to obtain a perovskite layer (302).

The application 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, at least one side surface of the cell substrate is provided with a groove structure, and an electrode structure is arranged at the groove structure. The electrode structure comprises a conductive metal layer, the conductive metal layer comprises a first subpart and a second subpart connected with each other, the first subpart is filled in the groove structure, and the second subpart is exposed outside the cell substrate. An oxidation-resistant layer is coated on the surface of the second subpart, the oxidation resistance of the oxidation-resistant layer is higher than that of the conductive metal layer, the oxidation-resistant layer is prepared by placing the cell substrate containing the conductive metal layer in a reaction solution containing oxidation-resistant metal ions, and along the thickness direction of the cell substrate, the height H1 of the first subpart and the height H2 of the second subpart satisfy 1 <= H1 < 3 mu m and 5 <= H2 <= 15 mu m. The electrode structure on the solar cell has high stability and good current collection effect.

A thermoelectric generator substrate includes: a flexible substrate including an insulating base material and a metal layer; and a cell substrate portion, wherein the cell substrate portion includes a strip-shaped first beam portion, a strip-shaped first leg portion whose one end is coupled to one end of the first beam portion and extends toward a center of the first beam portion, a strip-shaped second leg portion whose one end is coupled to the other end of the first beam portion and extends toward the center of the first beam portion, a first contact portion coupled to the other end of the first leg portion and in contact with a heat source, and a second contact portion coupled to the other end of the second leg portion and in contact with the heat source, and the first leg portion and the second leg portion are configured to deform and erect by widening an interval between the first contact portion and the second contact portion.

The application discloses an HJT solar cell and a preparation method thereof. The preparation method comprises the following steps: providing a heterojunction cell substrate, depositing a transparent conductive oxide layer on both sides of the heterojunction cell substrate, manufacturing a mask layer on the surface of the transparent conductive oxide layer, performing a patterned opening treatment on the mask layer to form a mask layer with a patterned opening, performing roughening, pre-impregnation and metal activation treatment in sequence at the patterned opening of the mask layer in a dark environment to obtain a pretreated heterojunction cell substrate, and performing pre-plating, deoxidation, copper electroplating, film stripping and chemical tin plating treatment on the pretreated heterojunction cell substrate in sequence to obtain the HJT solar cell. In the method, the copper seed layer of PVD sputtering and etching are not needed on both sides of the cell, the discharge of copper-containing wastewater is avoided, the TCO damage caused by the etching of the copper seed layer is reduced, the invalid line width shielding area is reduced, and the defects of the traditional technology are overcome.

The application provides a solar cell, a preparation method thereof and a photovoltaic module, and relates to the technical field of photovoltaics. The solar cell comprises a cell substrate, a dielectric layer, a first conductive layer and a second conductive layer. The dielectric layer is arranged on the surface of the cell substrate, and the dielectric layer is provided with a groove exposing the surface of the cell substrate. At least part of the first conductive layer is arranged in the groove and is in electrical contact with the surface of the cell substrate, and the material of the first conductive layer comprises graphene. The second conductive layer is arranged on the side of the first conductive layer away from the cell substrate and is in electrical contact with the first conductive layer. The first conductive layer and the second conductive layer are connected as a gate line, which is beneficial to reducing the resistance of the gate line, thereby reducing the loss in the energy conversion process. Furthermore, the first conductive layer is made of graphene, and the preparation cost of the gate line is lower than that of the current silver gate line.

The invention relates to a perovskite laminated cell substrate, a perovskite laminated cell and a preparation method of the perovskite laminated cell. The substrate preparation method comprises the following steps: manufacturing a crystalline silicon substrate through a diamond wire cutting process; the method comprises the following steps: carrying out pre-wetting polishing treatment on a crystalline silicon substrate, cleaning residues on the surface of the crystalline silicon substrate, and rounding sharp peaks and valleys generated by cutting to form a pre-treated surface; laser cold polishing is conducted on the pretreated surface, picosecond / femtosecond pulse laser is adopted to be matched with a light spot of a surface cutting line mark for carving, the surface height difference and roughness are reduced, and a photochemical treatment surface is formed; and the photochemical treatment surface is subjected to post-humidification polishing treatment, a laser melting layer and surface residues are removed, the morphology is modified, and finally the activated texture surface is formed. According to the preparation method of dry and wet combination, the diamond wire cut silicon wafer is polished and carved so as to be suitable for large-scale industrial production of the perovskite laminated cell substrate, the preparation cost of the substrate and the cell is reduced, and the production efficiency is 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 doped layer comprises a first doped region closest to the first edge and a plurality of second doped regions arranged in the first direction, part of the first doped region is located in the first overlapping region, and in the first direction, the width of the first doped region is larger than that of the second doped regions.

This application discloses a solar cell and a photovoltaic module, relating to the field of photovoltaic technology. The solar cell includes a cell substrate and grid lines disposed on the cell substrate. The cell substrate includes a silicon substrate, a doped polycrystalline silicon layer, and a passivation layer, which are stacked. Grid line grooves are formed on the passivation layer, with the bottom of the grid line grooves exposing the doped polycrystalline silicon layer. At least a portion of the edge of the passivation layer adjacent to the grid line groove is warped away from the doped polycrystalline silicon layer to form a warped portion. The grid lines cover and fill the grid line grooves. In the solar cell of this application embodiment, the warped edge of the passivation layer forms a warped portion. On the one hand, this widens the bottom area of ​​the grid line groove, which helps to reduce the contact resistance between the grid lines and the doped polycrystalline silicon layer; on the other hand, it can improve the bonding strength between the grid lines and the cell substrate, reducing the risk of grid line detachment.

The present disclosure provides a back contact cell and a photovoltaic module. The back contact cell includes: a cell substrate; first and second busbars alternately arranged on the cell substrate in a first direction, the first busbar including a plurality of first sections spaced apart in a second direction, and the second busbar including a plurality of second sections spaced apart in the second direction; a first through-wire extending in the first direction and in contact connection with a plurality of first sections in a same row in the first direction; and a second through-wire extending in the first direction and in contact connection with a plurality of second sections in a same row in the first direction. The adjacent first through-wire and the second through-wire form a through-wire set. The number of the through-wire set is designed to decrease as the number of busbars increases.

The invention relates to the technical field of photovoltaics, in particular to a solar cell and a preparation method thereof and a photovoltaic module, the preparation method comprises the following steps: printing a 3-aminopropyltrimethoxysilane solution to a grid line area of a transparent conductive layer of a cell substrate, and performing first thermocuring to form an aminosilane activated self-assembly layer in the grid line area; performing electrophoretic deposition on the amino silane activated self-assembled layer by using an electrophoretic liquid, and performing second thermal curing to form a transition layer which is a poly (3, 4-ethylenedioxythiophene)-poly (styrenesulfonic acid) transition layer; and electroplating on the transition layer to form a copper grid line. The solar cell prepared by the preparation method can be used for a photovoltaic module, and the solar cell can improve the adhesive force of the copper grid line, reduce the interface contact resistance and further reduce the production cost.

A solar cell and its fabrication method are disclosed. The solar cell includes a cell substrate, an antireflection layer located on at least one surface of the cell substrate, and an electrode. The antireflection layer has grid line regions and non-grid line regions, with at least a portion of the grid line regions having a lower density than the non-grid line regions. The electrode is located in the grid line regions and passes through the antireflection layer to contact the cell substrate. This invention reduces the density of the reflective layer in at least a portion of the grid line regions, thereby allowing for the selective use of more electrode paste. Even with low-corrosion pastes, more silver-silicon contacts can be formed between the silver paste and silicon during conventional sintering, reducing the contact resistance in the metal region. Furthermore, low-temperature silver paste can be used, reducing costs while ensuring ohmic contact in the grid line regions.

The embodiment of the present disclosure relates to the photovoltaic field, and provides a photovoltaic cell and a photovoltaic module, the photovoltaic cell comprises: a cell substrate having two surface sides opposite along a first direction, at least one surface side comprising an interconnection area and a non-interconnection area opposite along a second direction, and a connecting area between the interconnection area and the non-interconnection area; a plurality of grid lines arranged at intervals along the second direction and located on the at least one surface side, the grid lines extending along a third direction; a straight-through part located on the non-interconnection area, the straight-through part extending along the second direction; a connecting block located on a side of the straight-through part away from the cell substrate; and an oblique-through part located on the interconnection area, the oblique-through part comprising two bus lines intersecting in the extending direction; the interconnection area is an area on the surface side provided with components for electrically connecting two adjacent photovoltaic cells, the non-interconnection area is an area on the surface side not provided with components for electrically connecting two adjacent photovoltaic cells, and at least the photovoltaic cell is beneficial to reducing the light-shielding area of the photovoltaic cell and improving the structural stability of the photovoltaic cell.