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1. 发明授权

EP3111486B1 PHOTOVOLTAIC CELL STRUCTURE AND METHOD OF MANUFACTURING A PHOTOVOLTAIC CELL 有权
公开(公告)号：EP3111486B1
公开(公告)日：2024-05-01
申请号：EP15714934.5
申请日：2015-02-26
IPC分类号： H01L31/074 , H01L31/18 , H01L31/0224 , H01L31/0236 , C23C16/02 , C23C16/40 , C23C16/455 , C30B7/00 , C30B29/16 , C30B29/60
CPC分类号： H01L31/02363 , H01L31/074 , H01L31/18 , H01L31/1884 , Y02E10/50 , C30B7/00 , C23C16/0209 , C23C16/407 , C30B29/16 , C23C16/45525 , C30B29/60 , H01L31/022483

2. 发明公开

EP4287271A3 METHOD FOR MANUFACTURING SOLAR CELL 审中-公开
公开(公告)号：EP4287271A3
公开(公告)日：2024-04-24
申请号：EP23204939.5
申请日：2023-10-20
申请人： Trina Solar Co., Ltd
发明人： LIU, Chengfa , CHEN, Hong , CHEN, Daming , CHEN, Yifeng
IPC分类号： H01L31/0216 , H01L31/0236 , H01L31/068 , H01L31/18
CPC分类号： Y02P70/50 , H01L31/02167 , H01L31/02363 , H01L31/1804 , H01L31/0747 , H01L31/068
摘要： The present application relates toa method for manufacturing a solar cell. In the method, a wafer including a substrate and a doped conducting material layer is provided. A first surface and a portion of a first side surface of the substrate include a textured structure. The doped conducting material layer covers the textured structure. A passivating contact material layer is formed on each surface of the wafer. The wafer formed with the passivating contact material layer is cut along the thickness direction of the substrate to form a sub-wafer, so as to form a doped conducting layer. The passivating contact material layer is etched to form a passivating contact layer. A first passivation layer is formed on the doped conducting layer, and further covers at least a portion of a cut edge side surface which is a side surface of the sub-wafer formed by cutting the wafer.

3. 发明公开

EP4318600A8 TEXTURE STRUCTURE OF SOLAR CELL AND PREPARATION METHOD THEREFOR 审中-公开
公开(公告)号：EP4318600A8
公开(公告)日：2024-03-20
申请号：EP22872114.8
申请日：2022-09-23
申请人： Trina Solar Co., Ltd
发明人： CHEN, Hong , GAO, Jifan , CHEN, Yifeng
IPC分类号： H01L31/0216 , H01L31/0236 , H01L31/068 , H01L31/18 , C30B29/06 , C30B33/10
摘要： The present invention provides a texture structure of a solar cell and a preparation method therefor. The texture structure comprises a texture; a texture surface comprises a contact region and a non-contact region; the contact region is provided with a metal gate line; the specific surface area of the contact region is less than that of the non-contact region. According to the texture structure of a solar cell and the preparation method therefor provided by the present invention, texture structures having different microscopic morphologies are formed on the texture of a metal gate line coverage region and the texture of a metal gate line non-coverage region, and the specific surface area of the texture structure in the non-coverage region is much greater than that of the texture structure in the coverage region, thereby reducing the contact area between slurry metal and the PN junction on the texture, reducing metal compounding by more than 20%, and improving conversion efficiency.

4. 发明公开

EP4336571A1 PHOTOVOLTAIC CELL AND PHOTOVOLTAIC MODULE 审中-公开
公开(公告)号：EP4336571A1
公开(公告)日：2024-03-13
申请号：EP22199678.8
申请日：2022-10-04
申请人： Zhejiang Jinko Solar Co., Ltd. , JINKO SOLAR CO., LTD
发明人： MAO, Jie , WANG, Zhao , ZHENG, Peiting , YANG, Jie , ZHANG, Xinyu
IPC分类号： H01L31/0236 , H01L31/0216 , H01L31/0745
摘要： A photovoltaic cell is provided, including a substrate having a front surface with metal and non-metal pattern regions, first and second pyramid structures in each metal pattern region, third and fourth pyramid structures in each non-metal pattern region, a first tunneling layer and a first doped conductive layer on a portion of the front surface in a respective metal pattern region, and a second tunneling layer and a second doped conductive layer on a rear surface of the substrate. A dimension of a bottom portion of each first pyramid structure is greater than that of each second pyramid structure. A dimension of a bottom portion of each third pyramid structure is greater than that of each fourth pyramid structure. An area proportion of the first pyramid structures in the metal pattern region is greater than that of the third pyramid structures in a respective non-metal pattern region.

5. 发明公开

EP4333083A1 HETEROJUNCTION SOLAR CELL AND MANUFACTURING METHOD THEREOF 审中-公开
公开(公告)号：EP4333083A1
公开(公告)日：2024-03-06
申请号：EP23194562.7
申请日：2023-08-31
申请人： Gold Stone (Fujian) Energy Company Limited
发明人： LIN, Chaohui , LIN, Kairui
IPC分类号： H01L31/0747 , H01L31/0745 , H01L31/0236 , H01L31/18
摘要： The present disclosure belongs to the technical field of solar cells, and provides a heterojunction solar cell and a manufacturing method thereof. The manufacturing method includes the following steps: A: forming a tunnel oxide layer on a surface of a semiconductor substrate; B: forming an N-type polysilicon layer on the tunnel oxide layer; C: forming a mask layer on the N-type polysilicon layer of a first main surface of the semiconductor substrate; D: performing texturing and cleaning on a second main surface of the semiconductor substrate, and removing the mask layer; E: forming a second intrinsic amorphous silicon layer on the second main surface of the semiconductor substrate; and F: forming a P-type oxygen-doped microcrystalline silicon layer on the second intrinsic amorphous silicon layer. With a simple process, the manufacturing method of the heterojunction solar cell keeps not only the high conductivity and low equipment investment of the N-type polysilicon layer, but also the desirable passivation and high open-circuit voltage of a heterojunction technology.

6. 发明公开

EP4297102A1 SEMICONDUCTOR SUBSTRATE, SOLAR CELL, AND PHOTOVOLTAIC MODULE 审中-公开
公开(公告)号：EP4297102A1
公开(公告)日：2023-12-27
申请号：EP22187232.8
申请日：2022-07-27
申请人： Zhejiang Jinko Solar Co., Ltd. , JINKO SOLAR CO., LTD
发明人： LI, Huimin , XU, Menglei , YANG, Jie , ZHANG, Xinyu
IPC分类号： H01L31/0236 , H01L31/0747 , H01L31/18
摘要： A semiconductor substrate, including a back surface having N-type conductive regions and P-type conductive regions. The N-type conductive regions are provided with first non-pyramidal texture structures, and the P-type conductive regions are provided with second non-pyramidal texture structures. A top surface of the first non-pyramidal texture structure is a polygonal plane, and a top surface of the second non-pyramidal texture structure is a polygonal plane. A one-dimensional size of the top surface of the first non-pyramidal texture structure is less than a one-dimensional size of the top surface of the second non-pyramidal texture structure. The one-dimensional size of the top surface of the first non-pyramidal texture structure is in a range of 5 µm to 12 µm. The one-dimensional size of the top surface of the second non-pyramidal texture structure is in a range of 10 µm to 40 µm.

7. 发明公开

EP4250373A1 PHOTOVOLTAIC CELL AND PHOTOVOLTAIC ASSEMBLY 审中-公开
公开(公告)号：EP4250373A1
公开(公告)日：2023-09-27
申请号：EP21893968.4
申请日：2021-11-18
申请人： Longi Green Energy Technology Co., Ltd.
发明人： WU, Zhao , XU, Chen , LI, Zifeng , XIE, Junjie
IPC分类号： H01L31/0236 , H01L31/0224
摘要： In the present disclosure, at least one surface of a cell body of a photovoltaic cell comprises a first area and a second area; the first area is configured as a textured structure, and the textured structure composed of pyramid and/or inverted pyramid structures can reduce the probability of small-angle incident light being reflected out of the photovoltaic cell; the second area is configured as a plurality of pits having a projection size of 0.5 to 100 microns on the surface of the cell body, and the plurality of micron-scale pits can reduce the probability of large-angle incident light being reflected out of the photovoltaic cell, the large-angle incident light being reflected multiple times in the micron-scale pits, such that the incident light absorption effect of the photovoltaic cell is improved; in addition, compared to nano-level light-trapping structures, the structural dimensions of the micron-level pits are larger and the surface area of a photovoltaic cell provided with the micron-level pits is smaller, so that a uniform passivation layer can be effectively generated on the surface of the photovoltaic cell, and the recombination rate of non-equilibrium carriers on the surface of the photovoltaic cell can be reduced, thereby improving the photoelectric conversion efficiency of the photovoltaic cell.

8. 发明授权

EP3050120B1 NANOSTRUCTURED SILICON BASED SOLAR CELLS AND METHODS TO PRODUCE NANOSTRUCTURED SILICON BASED SOLAR CELLS 有权转让
公开(公告)号：EP3050120B1
公开(公告)日：2023-06-07
申请号：EP14784184.5
申请日：2014-09-26
发明人： DAVIDSEN, Rasmus Schmidt , HANSEN, Ole , BOISEN, Anja , SCHMIDT, Michael Stenbæk
IPC分类号： H01L31/0236 , H01L31/068 , H01L31/18

9. 发明公开

EP4177977A1 SOLAR CELL AND PHOTOELECTRIC CONVERSION ELEMENT 审中-公开
公开(公告)号：EP4177977A1
公开(公告)日：2023-05-10
申请号：EP21837906.3
申请日：2021-06-16
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： HIRAOKA, Maki , SEKIMOTO, Takeyuki , YAMAMOTO, Teruaki
IPC分类号： H01L51/44 , H01L51/46 , H01L31/0236 , H01L51/42
摘要： A solar cell 100 includes a first electrode 2, a first electron transport layer 4, a second electron transport layer 3, a photoelectric conversion layer 5, and a second electrode 7. The first electron transport layer 4 includes carbon and a porous electron transport material.

10. 发明授权

EP3858606B1 FARBIGES FASSADENELEMENT MIT VERBUNDSCHEIBENSTRUKTUR 有权转让
公开(公告)号：EP3858606B1
公开(公告)日：2022-09-07
申请号：EP20153987.1
申请日：2020-01-28
发明人： Palm, Jörg , Tautenhahn, Lutz
IPC分类号： B32B17/10 , C03C17/00 , E04C2/54 , H01L31/048 , H01L31/0236 , H01L31/054 , H02S20/22 , E04F13/14

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