7 results about "Polar structure" patented technology

The invention belongs to the technical field of acoustic-electric conversion, and discloses a sound production monomer and electronic equipment, and the sound production monomer comprises a shell, at least one first polar structure, at least one second polar structure and a vibrating diaphragm. The first polar structure is arranged on the shell; the second polar structures are arranged on the shell, the first polar structures and the second polar structures are alternately arranged in the first direction, and the first direction is the thickness direction of the shell; the vibrating diaphragm is arranged in the shell, the inner periphery of the vibrating diaphragm is correspondingly connected to the second polar structure, the outer periphery of the vibrating diaphragm is connected to the shell, and the first polar structure and the second polar structure are matched with each other to drive the vibrating diaphragm to vibrate; when one of the first polar structure and the second polar structure includes an electrode layer, the other of the first polar structure and the second polar structure includes an electret layer. The sound production monomer and the electronic equipment provided by the invention meet the requirements of lightness and thinness, and have relatively high low-frequency sensitivity.

The present disclosure relates to the technical field of solar cells, and discloses a back contact solar cell, a preparation method thereof and a battery assembly. The back contact solar cell comprises a substrate layer, a first polarity structure, a second polarity structure and an isolation groove. The substrate layer comprises a light-receiving surface and a back surface arranged oppositely. The first polarity structure and the second polarity structure are alternately formed on the back surface side of the substrate layer. The isolation groove is formed between the first polarity structure and the second polarity structure and extends into the substrate layer. The bottom of the isolation groove is formed with a chamfer structure at the end close to the first polarity structure and / or the second polarity structure. The chamfer structure is recessed from the bottom surface of the isolation groove towards the light-receiving surface side. The chamfer structure of the present disclosure is deeper than the depth of the isolation groove, effectively blocking the conduction between the diffusion atoms of different polarities, and can further narrow the width of the bottom of the isolation groove, while enhancing the effective internal reflection of the back surface side to the incident sunlight, improving the optical performance of the cell.

The embodiment of the application discloses a kind of cornea multimodal data fusion method and related device, the method includes determining the coordinate and physical size of the same feature of cornea in polar structure diagram and topographic thickness chart;According to the coordinate and physical size of the same feature in polar structure diagram and topographic thickness chart, determine the similar transformation matrix between the polar structure diagram and the topographic thickness chart;According to the similar transformation matrix, polar structure data is resampled to the topographic thickness chart, obtains multimodal fusion data, or, according to the similar transformation matrix, topographic thickness data is resampled to the polar structure diagram system, obtains multimodal fusion data.The embodiment of the application greatly enhances the density of data and the relevance of information by deeply fusing the microscopic structure information and macroscopic morphological information of cornea, which is beneficial to accurately identify complex lesion patterns and improve the accuracy and robustness of computer-aided diagnosis.

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 substrate layer, a first polar structure, a second polar structure and an isolation groove, the substrate layer comprises a light receiving surface, a backlight surface and a side surface which are oppositely arranged, at least part of the surface of the light receiving surface forms a first suede, and a third suede is formed on the side surface; the first polar structures and the second polar structures are alternately arranged on the backlight surface; the isolation grooves are formed between the adjacent first polar structures and second polar structures, and second textured surfaces are formed on the exposed backlight surfaces of the isolation grooves. In the invention, the surface roughness of the first suede surface, the second suede surface and the third suede surface, namely the uneven degree of the whole surface, is gradually reduced, and the first suede surface ensures more light absorption; the passivation electrical property of the battery is improved by the second suede; and the third suede reduces the fragmentation rate of the cell, improves the edge blackening, and finally improves the photoelectric conversion efficiency of the cell.

The invention relates to the technical field of solar cells, and discloses a back contact solar cell and a preparation method thereof. The preparation method comprises the steps that a substrate layer with a light receiving face and a backlight face opposite to each other is provided, and one side of the backlight face comprises first areas and second areas which are alternately arranged; a groove is formed in the first area of the backlight face, and correspondingly, a protrusion is formed in the second area; forming a first polarity structure in the groove; second polar structures are formed on the protrusions, the bottom faces of the second polar structures are higher than the top faces of the first polar structures, and isolation areas are further formed between the first polar structures and the second polar structures; and forming a first electrode on the first polar structure and forming a second electrode on the second polar structure. According to the invention, the formed first polar structure is lower than the backlight surface, and the backlight surface is lower than the second polar structure, so that the radiation range of a built-in electric field is effectively enlarged, the carrier transport resistance and collection efficiency are reduced, and the photoelectric property and photoelectric conversion efficiency of the cell are greatly improved.

The invention relates to a back contact solar cell, a manufacturing method thereof and a photovoltaic module. The back contact solar cell includes: a substrate; the plurality of first polar structures are arranged on the first surface of the substrate; the plurality of second polar structures are arranged on the first surface of the substrate; the doping types of the first polar structures and the second polar structures are opposite, the first polar structures and the second polar structures are alternately arranged at intervals along a first preset direction, and an insulating isolation groove is defined between the adjacent first polar structure and second polar structure; and the marking structure is arranged in the insulating isolation groove and is spaced from the first polar structure and the second polar structure. According to the back contact solar cell and the manufacturing method thereof, the positioning precision of the photovoltaic module is relatively high, and the yield of solar cell production is also relatively high.

The invention relates to the technical field of solar cells, and discloses a back contact solar cell, a preparation method thereof and a cell module. The back contact solar cell comprises a substrate layer, a first polarity structure, a second polarity structure and an isolation groove, wherein the substrate layer comprises a light receiving surface and a backlight surface which are oppositely arranged; the first polar structure and the second polar structure are alternately formed on one side of the backlight surface of the substrate layer; the isolation groove is formed between the first polar structure and the second polar structure and extends into the substrate layer; a chamfer structure is formed at the end part, close to the first polar structure and / or the second polar structure, of the bottom of the isolation groove, and the chamfer structure is concavely formed from the bottom surface of the isolation groove to one side of the light receiving surface. Compared with the isolation groove, the chamfer structure is deeper, conduction between diffusion atoms with different polarities is effectively blocked, the width of the bottom of the isolation groove can be further reduced, meanwhile, effective internal reflection of incident solar rays by one side of the back face is enhanced, and the optical performance of the cell is improved.