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公开(公告)号：US20220165906A1
公开(公告)日：2022-05-26
申请号：US17322895
申请日：2021-05-17
IPC分类号： H01L31/18 , H01L31/0224 , H01L31/0236
摘要： A method for preparing a selective emitter solar cell includes: forming a textured surface with a plurality of protrusions in the first regions and the second regions of the surface of the semiconductor substrate, wherein each protrusion has a cross-sectional shape that is trapezoidal or trapezoid-like in a thickness direction of the semiconductor substrate; performing a diffusion treatment on at least part of protrusions to form a first doped layer, and forming a first oxide layer above the first regions; re-etching the surface of the semiconductor substrate by using the first oxide layer as a mask, to etch each protrusion in the second regions to form a pyramid structure, such that the first doped layer in the second regions is etched to form a second doped layer with a doping concentration lower than a doping concentration of the first doped layer.
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公开(公告)号：US12119423B2
公开(公告)日：2024-10-15
申请号：US18488909
申请日：2023-10-17
IPC分类号： H01L31/18 , H01L31/02 , H01L31/0288
CPC分类号： H01L31/1868 , H01L31/02008 , H01L31/0288 , H01L31/182
摘要： The solar cell includes a silicon substrate, multiple first electrodes, and multiple second electrodes. The solar cell further includes a tunneling oxide layer, multiple doped polysilicon layers, and at least one barrier layer. The at least one barrier layer is arranged between every adjacent two doped polysilicon layers in the multiple doped polysilicon layers, and the multiple first electrodes are electrically connected to different doped polysilicon layers. The solar cell provided according to the present application can reduce the total thickness of the polycrystalline silicon layer, so that a thinner polycrystalline silicon layer can reduce parasitic absorption, thereby increasing short-circuit current. Moreover, the risk of slurry burning through the tunneling oxide layer is reduced by the barrier layer, while reducing metal recombination, which increases the open circuit voltage of the solar cell, thereby improving the photoelectric conversion efficiency of the solar cell.
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公开(公告)号：US12074245B1
公开(公告)日：2024-08-27
申请号：US18458074
申请日：2023-08-29
发明人： Wusong Tao , Jun Feng , Heng Luo
IPC分类号： H01L31/048 , H01L31/0224 , H01L31/05 , H01L31/18
CPC分类号： H01L31/18 , H01L31/022425 , H01L31/048 , H01L31/0504
摘要： Embodiments of the disclosure provide a method for manufacturing a photovoltaic module and a photovoltaic module. The method includes the following: providing a plurality of cells; selecting at least one cell from the plurality of cells, and for each respective cell of the at least one cell, forming a corresponding solder layer on each respective solder pad of at least one solder pad of the respective cell; and performing a soldering treatment on the respective connecting member and the at least one solder pad and/or the at least one solder layer to connect the respective pair of adjacent cells, wherein the soldering treatment has a heating temperature in a range of 200° C. to 300° C.
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公开(公告)号：US20240274737A1
公开(公告)日：2024-08-15
申请号：US18480432
申请日：2023-10-03
发明人： Zhiqiu GUO , Jingguo YANG , Liqin LIU , Yingli GUAN , Shiliang HUANG
IPC分类号： H01L31/05 , H01L31/0224 , H01L31/0475
CPC分类号： H01L31/0508 , H01L31/022433 , H01L31/0475 , H01L31/049
摘要： A photovoltaic cell and a photovoltaic module. The photovoltaic cell includes a semiconductor substrate, a passivation layer arranged on a surface of the semiconductor substrate, a plurality busbars, and a plurality of electrode pads arranged on the passivation layer. Each of the plurality of electrode pads are electrically connected to an electrode line, and along a thickness direction of the photovoltaic cell, the plurality of electrode pads are arranged on a side of the plurality of busbars facing away from the passivation layer, or arranged on the passivation layer. Along a thickness direction of the photovoltaic cell, a vertical distance between a highest point of the plurality of electrode pads and a surface of the passivation layer is greater than or equal to a vertical distance between a highest point of the plurality of busbars and the surface of the passivation layer.
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35.发明授权公开(公告)号：US12040741B2
公开(公告)日：2024-07-16
申请号：US17968543
申请日：2022-10-18
发明人： Bo Li , Pengjun Xiao , Juan Wang , Sen Yang , Chunhua Tao , Ning Li , Rong Hu , Na Liu , Yunchao Diao , Zhinan Zhao
CPC分类号： H02S30/20 , H02S20/25 , F24S2025/015 , F24S2025/023 , F24S25/40 , F24S25/67 , H02S20/23 , Y02B10/10 , Y02E10/47 , Y02E10/50 , Y10T29/49355 , Y10T29/49826
摘要： A photovoltaic tile, a photovoltaic power generation system, and a method for mounting photovoltaic tile. The photovoltaic tile includes color steel tiles, adjacent color steel tiles are fixedly connected to each other, the color steel tiles each include a male rib, a female rib, and a folding portion, the male rib and the female rib are respectively arranged at two opposite ends of the color steel tile along a width direction, the folding portion is arranged between the male rib and the female rib, and the female rib is fixedly connected to the male rib of an adjacent color steel tile to form a connecting end; fixing devices mounted on the folding portions; and photovoltaic modules each having two ends respectively connected to the fixing devices of adjacent folding portions. When the photovoltaic module is mounted on the color steel tile, the connecting end supports the photovoltaic module.
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公开(公告)号：US20240234612A1
公开(公告)日：2024-07-11
申请号：US18616205
申请日：2024-03-26
发明人： Yuanfang ZHANG , Menglei XU , Jie YANG , Xinyu ZHANG
IPC分类号： H01L31/077 , H01L31/0236 , H01L31/043 , H01L31/18
CPC分类号： H01L31/077 , H01L31/02363 , H01L31/043 , H01L31/1892
摘要： A method for preparing a solar cell includes: providing a carrier plate and a separation auxiliary layer, forming a perovskite absorption layer, having a first side facing away from the separation auxiliary layer and a second side opposite to the first side and including a bonding matrix and monocrystal perovskite particles, over the separation auxiliary layer away from the carrier plate, at least some of the monocrystal perovskite particles having first convex surfaces and second convex surfaces protruding from the bonding matrix on the first and second side respectively, and a functional layer formed over a respective monocrystal perovskite particle; forming a first carrier transport layer on the first side of the perovskite absorption layer; forming a first conductive layer over the first carrier transport layer; removing the carrier plate and the separation auxiliary layer, and forming a second conductive layer on the second side of the perovskite absorption layer.
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公开(公告)号：US12021157B2
公开(公告)日：2024-06-25
申请号：US17964502
申请日：2022-10-12
发明人： Qiang Xu , Jing Zhou , Yankai Qiu
CPC分类号： H01L31/0201 , H01L31/0504 , H01L31/1868
摘要： An electrode structure, a solar cell, and a photovoltaic module are provided. The electrode structure includes: busbars extending along a first direction and each including two sub-busbars arranged opposite to each other along a second direction intersecting with the first direction, each of the sub-busbars includes first sub-portions and second sub-portions that are spaced at intervals; fingers extending along the second direction and arranged at two sides of the busbars, the fingers are connected to the sub-busbars; and electrode pads sandwiched between the first sub-portions of the two sub-busbars and connected to the first sub-portions, the first sub-portion of at least one of the sub-busbars protrude towards a side away from the electrode pads.
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公开(公告)号：US20240204125A1
公开(公告)日：2024-06-20
申请号：US18298304
申请日：2023-04-10
发明人： Zhao WANG , Peiting ZHENG , Jie YANG , Jiajia ZHU , Simin ZHU
IPC分类号： H01L31/0735 , H01L31/0224 , H01L31/048 , H01L31/18
CPC分类号： H01L31/0735 , H01L31/022425 , H01L31/048 , H01L31/1868
摘要： A solar cell is disclosed, including a substrate having a first surface and an opposite second surface, and a first passivation contact structure. The first surface has a metal pattern region and a non-metal pattern region including a first region and a second region. The first region is closer to the second surface than the metal pattern region, and the second region is not closer to the second surface than the first region and is not further away from the second surface than the metal pattern region. The substrate has a doped layer formed in a portion of the substrate corresponding to the non-metal pattern region, and the doped layer has a top surface at the non-metal pattern region. The first passivation contact structure covers the metal pattern region and includes at least one first tunneling layer and at least one first doped conductive layer.
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公开(公告)号：US20240204116A1
公开(公告)日：2024-06-20
申请号：US18590798
申请日：2024-02-28
发明人： Ruifeng LI , Wenqi LI , Yankai QIU , Ning ZHANG , Bin LI
IPC分类号： H01L31/0216 , H01L31/18
CPC分类号： H01L31/02168 , H01L31/02167 , H01L31/1868
摘要： The photovoltaic cell includes a silicon substrate, a first passivation layer, a second passivation layer, at least one silicon oxynitride layer, and at least one silicon nitride layer. The second passivation layer includes a first silicon oxide layer and at least one aluminum oxide layer, and a thickness of the at least one aluminum oxide layer is in a range of 4 nm to 20 nm. The number of silicon atoms is greater than the number of oxygen atoms in the at least one silicon oxynitride layer and the number of oxygen atoms is greater than the number of nitride atoms in the at least one silicon oxynitride layer. The first silicon oxide layer is disposed between the substrate and the at least one aluminum oxide layer, and a thickness of the first silicon oxide layer is in a range of 0.1 nm to 5 nm.
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公开(公告)号：US20240125005A1
公开(公告)日：2024-04-18
申请号：US18149038
申请日：2022-12-30
发明人： Chunsheng SU , Yuang YANG , Peng XIANG , Bo XIONG
IPC分类号： C30B15/22
摘要： A method for crystal pulling is provided. The method includes the following. The method includes performing an equal-diameter process. The equal-diameter process is performed as follows. From the first equal-diameter stage to the third equal-diameter stage, the crystal rotation rate is gradually increased after starting at a first initial crystal rotation rate, and then is kept at a constant rotation rate after gradually increasing the crystal rotation rate. The crucible rotation rate is gradually increased from a first initial crucible rotation rate to a maximum crucible rotation rate after starting at the first initial crucible rotation rate in the first equal-diameter stage, the crucible rotation rate is kept at the maximum crucible rotation rate in the second equal-diameter stage, and the crucible rotation rate is gradually decreased after the second equal-diameter stage. The method further includes a cooling process.
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