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公开(公告)号：EP2479804B1
公开(公告)日：2020-09-23
申请号：EP10816939.2
申请日：2010-05-24
IPC分类号： H01L31/068 , H01L31/0216 , H01L31/0224
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公开(公告)号：EP2610918B1
公开(公告)日：2018-12-05
申请号：EP11819820.9
申请日：2011-08-16
发明人： OOIWA, Hideo , WATABE, Takenori , OTSUKA, Hiroyuki , HARA, Kazuo
IPC分类号： H01L31/04
CPC分类号： H01L31/065 , H01L29/045 , H01L29/0657 , H01L31/02168 , H01L31/022433 , H01L31/0352 , H01L31/035281 , H01L31/068 , H01L31/182 , H01L31/186 , Y02E10/546 , Y02E10/547 , Y02P70/521
摘要： Provided is a substrate for a solar cell, wherein a flat chamfered portion is formed on one corner of a silicon substrate having a square shape in a planar view, or a notch is formed on the corner or close to the corner. This invention makes it possible to easily check the position of the substrate and determine the direction of the substrate in a solar cell manufacturing step, and suppresses failures generated due to the direction of the substrate.
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公开(公告)号：EP2270841B1
公开(公告)日：2018-08-22
申请号：EP09721858.0
申请日：2009-03-18
发明人： TSUKIGATA, Shintarou , MATSUOKA, Toshifumi , YAMAMOTO, Kenji , UEGURI, Toyohiro , ISHIKAWA, Naoki , OTSUKA, Hiroyuki
IPC分类号： H01L31/068 , H01L31/18 , H01L21/225
CPC分类号： H01L31/18 , H01L21/2225 , H01L21/2254 , H01L31/068 , H01L31/1804 , Y02E10/547 , Y02P70/521
摘要： Disclosed is a phosphorus paste for diffusion that is used in continuous printing of a phosphorus paste for diffusion on a substrate by screen printing. The phosphorus paste for diffusion does not undergo a significant influence of ambient humidity on viscosity and has no possibility of thickening even after a large number of times of continuous printing. The phosphorus paste for diffusion is coated on a substrate by screen printing for diffusion layer formation on the substrate. The phosphorus paste for diffusion includes a doping agent containing phosphorus as a dopant for the diffusion layer, a thixotropic agent containing an organic binder and a solid matter, and an organic solvent. The doping agent is an organic phosphorus compound.
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4.发明授权FIRING FURNACE FOR FIRING ELECTRODE OF SOLAR CELL ELEMENT, METHOD FOR MANUFACTURING SOLAR CELL ELEMENT 有权用于太阳能电池元件的发射电极的发射炉，用于制造太阳能电池元件的方法
公开(公告)号：EP2581933B1
公开(公告)日：2017-11-15
申请号：EP11792355.7
申请日：2011-06-03
发明人： MITTA, Ryo , WATABE, Takenori , OTSUKA, Hiroyuki
CPC分类号： H01L31/18 , F27B9/243 , F27B17/00 , H01L21/67109 , H01L21/6776 , H01L31/022425 , H01L31/1864 , Y02E10/50 , Y02P70/521
摘要： Disclosed is a firing furnace for firing an electrode of a solar cell element, which is provided with: a transfer member, which transfers a substrate having a conductive paste applied thereto; a heating section, which heats the substrate and fires the conductive paste; and a cooling section, which cools the heated substrate. The furnace is also provided with a heating means for heating the transfer member. Specifically, at the time of firing the electrode paste using the wire-type firing furnace, since a wire is fired at a temperature substantially equivalent to the ambient temperature of the heating section, deterioration of yield due to having the electrode damaged by a deposited material of the metal component of the conductive paste is suppressed, said deposited material being deposited on the wire, and the wire-type firing furnace can be continuously used.
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5.发明公开SOLAR CELL AND METHOD FOR MANUFACTURING SOLAR CELL 审中-公开SOLARZELLE UND VERFAHREN ZUR HERSTELLUNG EINER SOLARZELLE
公开(公告)号：EP3157062A1
公开(公告)日：2017-04-19
申请号：EP15807525.9
申请日：2015-04-07
发明人： ENDO, Yoko , WATABE, Takenori , OTSUKA, Hiroyuki
IPC分类号： H01L31/0224 , H01L21/28 , H01L31/068
CPC分类号： H01L31/022458 , H01L21/28 , H01L31/0201 , H01L31/02167 , H01L31/0224 , H01L31/02366 , H01L31/068 , Y02E10/50
摘要： The present invention is a solar cell including: a first conductivity type diffusion layer and a second conductivity type diffusion layer which are formed on a backside of a light-receiving surface of a substrate, a first electrode portion, a second electrode portion, a first electrode line portion, a second electrode line portion, a first electrode bus bar portion, and a second electrode bus bar portion; a first insulator film which is formed so as to cover a side portion and a top of the second electrode portion in an intersection region of the second electrode portion and the first electrode bus bar portion, a second insulator film which is formed so as to cover a side portion and a top of the first electrode portion in an intersection region of the first electrode portion and the second electrode bus bar portion, wherein the second electrode portion is formed continuously in a line shape under the first insulator film, and the first electrode portion is formed continuously in a line shape under the second insulator film. This provides a back surface electrode-type solar cell with low wiring resistance and high conversion efficiency, and a method for producing a solar cell which can produce such a back surface electrode-type solar cell at low cost.
摘要翻译： 本发明是一种太阳能电池，包括：形成在基板的受光面的背面的第一导电型扩散层和第二导电型扩散层，第一电极部，第二电极部，第一导电型扩散层 电极线部分，第二电极线部分，第一电极母线部分和第二电极母线部分; 第一绝缘膜，其形成为覆盖第二电极部分和第一电极母线部分的交叉区域中的第二电极部分的侧部和顶部;第二绝缘膜，形成为覆盖 在第一电极部分和第二电极汇流条部分的交叉区域中的第一电极部分的侧部和顶部，其中第二电极部分在第一绝缘膜下方以线形连续地形成，并且第一电极 部分在第二绝缘膜下方以线形连续地形成。 这提供了具有低布线电阻和高转换效率的背面电极型太阳能电池，以及可以以低成本生产这种背面电极型太阳能电池的太阳能电池的制造方法。
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6.发明公开PHOSPHORUS PASTE FOR DIFFUSION AND PROCESS FOR PRODUCING SOLAR BATTERY UTILIZING THE PHOSPHORUS PASTE 有权荧光粉浆体用于生产太阳能电池的使用荧光粉浆体扩散和过程
公开(公告)号：EP2270841A1
公开(公告)日：2011-01-05
申请号：EP09721858.0
申请日：2009-03-18
发明人： TSUKIGATA, Shintarou , MATSUOKA, Toshifumi , YAMAMOTO, Kenji , UEGURI, Toyohiro , ISHIKAWA, Naoki , OTSUKA, Hiroyuki
IPC分类号： H01L21/225 , H01L31/04
CPC分类号： H01L31/18 , H01L21/2225 , H01L21/2254 , H01L31/068 , H01L31/1804 , Y02E10/547 , Y02P70/521
摘要： Disclosed is a phosphorus paste for diffusion that is used in continuous printing of a phosphorus paste for diffusion on a substrate by screen printing. The phosphorus paste for diffusion does not undergo a significant influence of ambient humidity on viscosity and has no possibility of thickening even after a large number of times of continuous printing. The phosphorus paste for diffusion is coated on a substrate by screen printing for diffusion layer formation on the substrate. The phosphorus paste for diffusion includes a doping agent containing phosphorus as a dopant for the diffusion layer, a thixotropic agent containing an organic binder and a solid matter, and an organic solvent. The doping agent is an organic phosphorus compound.
摘要翻译： 公开了一种用于扩散用磷糊料并在用磷糊料用于在基片通过丝网印刷扩散的连续印刷中使用。 扩散用磷糊料不经历环境湿度对粘度的影响显著，甚至大量的连续印刷的次数之后没有增粘的可能性。 扩散用磷糊料涂布在在该衬底上的扩散层形成用基板通过丝网印刷。 扩散用磷糊料包括掺杂剂的含磷作为用于扩散层，包含有机粘合剂和固体物质的触变剂，和在有机溶剂中的掺杂剂。 掺杂剂是有机磷化合物。
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公开(公告)号：EP4287272A3
公开(公告)日：2024-01-17
申请号：EP23204282.0
申请日：2010-05-24
IPC分类号： H01L31/068 , H01L31/0216 , H01L31/0224
摘要： Disclosed is a solar cell which is provided with: a semiconductor substrate having a light-receiving surface and a non-light-receiving surface; a PN junction section formed on the semiconductor substrate; a passivation layer formed on the light-receiving surface and/or the non-light-receiving surface; and power extraction electrodes formed on the light-receiving surface and the non-light-receiving surface. The solar cell is characterized in that the passivation layer includes an aluminum oxide film having a thickness off 40 nm or less. As a result of forming an aluminum oxide film having a predetermined thickness on the surface of the substrate, it is possible to achieve excellent passivation performance and excellent electrical contact between silicon and the electrode by merely firing the conductive paste, which is conventional technology. Furthermore, an annealing step, which has been necessary to achieve the passivation effects of the aluminum oxide film in the past, can be eliminated, thus dramatically reducing costs.
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公开(公告)号：EP4287272A2
公开(公告)日：2023-12-06
申请号：EP23204282.0
申请日：2010-05-24
IPC分类号： H01L31/0224
摘要： Disclosed is a solar cell which is provided with: a semiconductor substrate having a light-receiving surface and a non-light-receiving surface; a PN junction section formed on the semiconductor substrate; a passivation layer formed on the light-receiving surface and/or the non-light-receiving surface; and power extraction electrodes formed on the light-receiving surface and the non-light-receiving surface. The solar cell is characterized in that the passivation layer includes an aluminum oxide film having a thickness off 40 nm or less. As a result of forming an aluminum oxide film having a predetermined thickness on the surface of the substrate, it is possible to achieve excellent passivation performance and excellent electrical contact between silicon and the electrode by merely firing the conductive paste, which is conventional technology. Furthermore, an annealing step, which has been necessary to achieve the passivation effects of the aluminum oxide film in the past, can be eliminated, thus dramatically reducing costs.
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公开(公告)号：EP3220424A1
公开(公告)日：2017-09-20
申请号：EP15858822.8
申请日：2015-10-14
发明人： OTSUKA, Hiroyuki
IPC分类号： H01L31/068
CPC分类号： H01L31/022441 , H01L31/02167 , H01L31/022425 , H01L31/0288 , H01L31/03767 , H01L31/068 , H01L31/18 , Y02E10/50 , Y02P70/521
摘要： The present invention is a solar cell having a P-type silicon substrate in which one main surface is a light-receiving surface and another main surface is a backside, a plurality of back surface electrodes formed on a part of the backside, an N-type layer in at least a part of the light-receiving surface of the P-type silicon substrate, and contact areas in which the P-type silicon substrate is in contact with the back surface electrodes; wherein the P-type silicon substrate is a silicon substrate doped with gallium; the P-type silicon substrate has a resistivity of 2.5 Ω·cm or less; and a back surface electrode pitch P rm [mm] of the plurality of back surface electrodes and the resistivity R sub [Ω·cm] of the P-type silicon substrate satisfy the relation represented by the following formula (1). This provides a solar cell and a solar cell module having excellent conversion efficiency with the resistance loss being prevented, with the solar cell using a substrate the light-induced degradation of which is eliminated. log R sub ≤ − log P rm + 1.0
摘要翻译： 本发明是一种具有P型硅基板的太阳能电池，其中一个主表面是光接收表面并且另一主表面是背侧，多个背面电极形成在背面的一部分上， 在所述P型硅基板的所述受光面的至少一部分上具有P型硅层和所述P型硅基板与所述背面电极接触的接触区域， 其中所述P型硅衬底是掺杂有镓的硅衬底; P型硅衬底具有2.5Ω·cm或更小的电阻率; 并且多个背面电极的背面电极间距Prm [mm]和P型硅基板的电阻率Rsub [Ω·cm]满足下述式（1）所示的关系。 这提供了太阳能电池和太阳能电池组件，该太阳能电池和太阳能电池组件具有优异的转换效率，并且防止了电阻损失，其中使用基板的太阳能电池的光致降解被消除。 logRsub≤-logPrm + 1.0
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公开(公告)号：EP3217437A1
公开(公告)日：2017-09-13
申请号：EP15857438.4
申请日：2015-10-13
发明人： OTSUKA, Hiroyuki , WATABE, Takenori
IPC分类号： H01L31/068 , H01L31/18
CPC分类号： H01L31/068 , H01L31/0288 , H01L31/035272 , H01L31/036 , H01L31/0392 , H01L31/18 , H01L31/1804 , Y02E10/50 , Y02P70/521
摘要： The present invention is a solar cell having a P-type silicon substrate in which one main surface is a light-receiving surface and another main surface is a backside, a dielectric film on the backside, and an N-conductivity type layer in at least a part of the light-receiving surface of the P-type silicon substrate, wherein the P-type silicon substrate is a silicon substrate doped with gallium, and the backside of the P-type silicon substrate contains a diffused group III element. This provides a solar cell with excellent conversion efficiency provided with a gallium-doped substrate, and a method for manufacturing the same.
摘要翻译： 本发明提供一种太阳能电池，该太阳能电池具有P型硅基板，该P型硅基板的一个主面为受光面，另一个主面为背面，背面为电介质膜，至少具有N导电型层 所述P型硅基板的受光面的一部分，所述P型硅基板是掺杂有镓的硅基板，所述P型硅基板的背面含有扩散型III族元素。 这提供了一种提供有掺镓衬底的具有优异转换效率的太阳能电池及其制造方法。
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