Abstract: A solar cell module includes: two solar cells that has a photoelectric conversion part 10 which has first and second main faces, a first electrode 20 that is provided on the first main face and that is made of conductive paste, and a second electrode that is provided on any one of the first and second main faces and that has a polarity opposite to that of the first electrode 20; a wiring member 40 for electrically connecting the first electrode 20 of one solar cell of the two solar cells to the second electrode of the other solar cell; and a connection layer 80 that is provided between the first electrode 20 and the wiring member 40 and that is made of resin 60 including a plurality of conductive particles 70. The first electrode 20 is electrically connected to the wiring member 40 by the conductive particles 70. A surface of the first electrode 20 having a contact with the connection layer 80 has a concavo-convex shape.

Abstract: This photovoltaic device is provided with a crystalline semiconductor substrate, and a first amorphous layer formed on the main surface of the substrate. At the interface between the substrate and the first amorphous layer, electrical conductivity can be improved while suppressing an increase in recombination centers, and power generation efficiency can be improved by having a p-type dopant density profile that decreases stepwise in the film thickness direction from the vicinity of the interface with the substrate.

Abstract: A photovoltaic device may be provided having a semiconductor substrate, an i-type amorphous layer or an i-type amorphous layer formed over a front surface or a back surface of the semiconductor substrate, and a p-type amorphous layer or an n-type amorphous layer formed over the i-type amorphous layer or the i-type amorphous layer. The i-type amorphous layer or the i-type amorphous layer has an oxygen concentration profile in which a concentration is reduced in a step-shape from a region near an interface with the semiconductor substrate and along a thickness direction.

Abstract: A solar cell module includes: two solar cells that photogenerate carriers, each having a first electrode on a first main face of a photoelectric conversion body, and a second electrode of opposite polarity on a main face; and a wiring member to electrically connect the two solar cells via the respective cell's first and second electrodes. A bus-bar electrode collects photogenerated carriers from the finger electrodes. The wiring member connects to the bus-bar electrode of one solar cell through a conductive resin connection layer. The connection layer also contacts the first main face of the photoelectric conversion body.

Abstract: A manufacturing method of a solar module according the embodiment includes a step A of disposing one of the wiring members 11 on the light receiving surface of one solar cell of n solar cells, with a thermosetting resin adhesive 12 interposed therebetween, the wiring member being to be connected to a solar cell adjacently located on one side of the one solar cell, and disposing another one of the wiring members 11 on the back surface of the one solar cell with the resin adhesive 12 interposed therebetween, the wiring member 11 being to be connected to a solar cell 10 adjacently located on the other side of the one solar cell; a step B of bonding the wiring members 11 to the one solar cell by heating the resin adhesive 12 at a temperature higher than a softening temperature of the resin adhesive 12 but lower than a hardening temperature of the resin adhesive 12; a step C of bonding the wiring members 11 to all the n solar cells by repeating the step A and the step B alternately; and a step D of hardening the r

Abstract: With the method for manufacturing the solar cell module 100 according to the present embodiment, the width W1 of the connection region C in which the wiring member 11 and the connecting electrode 40 are electrically connected is set to be larger than the substantially half of the width W2 of the wiring member 11 in the thermocompression bonding process of the wiring member 11 using the resin adhesive 12 including the particles 13 onto the principal surface of the solar cell 10.

Abstract: An object of the present invention is to provide a photovoltaic module that achieves a reduction in adverse influence of damage accumulated in a collector electrode provided on the light receiving surface side, and a method for manufacturing the photovoltaic module. To this end, in a photovoltaic module of the present invention, the degree of cross-linkage of the second region of the sealing material that is in contact with the back surface of the solar cell is smaller than that of the first region of the sealing material that is in contact with the light receiving surface of the solar cell.

Abstract: A solar cell module is provided that comprises: a solar cell; a connection electrode provided on each of a light-receiving surface and back surface of the solar cell; a conductive resin adhesive arranged on an upper surface of the connection electrode; and a wiring material electrically connected to the solar cell and connected with the connection electrode and the conductive resin adhesive, wherein the conductive resin adhesive changes color upon curing, and the conductive resin adhesive on the upper surface of the connection electrode provided on the light-receiving surface of the solar cell is arranged within a region corresponding to at least one of the connection electrode and the wiring material, on a projection plane parallel with the light-receiving surface and exposed on a light-receiving surface side.

Abstract: An object of the present invention is to provide a photovoltaic module that achieves a reduction in adverse influence of damage accumulated in a collector electrode provided on the light receiving surface side, and a method for manufacturing the photovoltaic module. To this end, in a photovoltaic module of the present invention, the degree of cross-linkage of the second region of the sealing material that is in contact with the back surface of the solar cell is smaller than that of the first region of the sealing material that is in contact with the light receiving surface of the solar cell.

Abstract: A solar cell module is provided that comprises: a solar cell; a connection electrode provided on each of a light-receiving surface and back surface of the solar cell; a conductive resin adhesive arranged on an upper surface of the connection electrode; and a wiring material electrically connected to the solar cell and connected with the connection electrode and the conductive resin adhesive, wherein the conductive resin adhesive changes color upon curing, and the conductive resin adhesive on the upper surface of the connection electrode provided on the light-receiving surface of the solar cell is arranged within a region corresponding to at least one of the connection electrode and the wiring material, on a projection plane parallel with the light-receiving surface and exposed on a light-receiving surface side.

Abstract: A solar cell according to the present invention includes: a photoelectric conversion part having a photoelectric converting function; and a collector electrode provided at a side of a light-receiving surface of the photoelectric conversion part in a way that parts of the light-receiving surface are exposed. Interconnection tabs are connected at a side of a light-receiving surface of the collector electrode with an adhesive being interposed in between. The collector electrode contains a thermosetting first resin, an conductive material and a second resin for forming a sea-island structure between the second resin and the first resin. The collector electrode includes an internal region in the inside, a concentration ratio of the second resin to the first resin being higher in the internal region than in the surface region at the side of either the adhesive or the photoelectric conversion part.

Abstract: A manufacturing method of a solar module according the embodiment includes a step A of disposing one of the wiring members 11 on the light receiving surface of one solar cell of n solar cells, with a thermosetting resin adhesive 12 interposed therebetween, the wiring member being to be connected to a solar cell adjacently located on one side of the one solar cell, and disposing another one of the wiring members 11 on the back surface of the one solar cell with the resin adhesive 12 interposed therebetween, the wiring member 11 being to be connected to a solar cell 10 adjacently located on the other side of the one solar cell; a step B of bonding the wiring members 11 to the one solar cell by heating the resin adhesive 12 at a temperature higher than a softening temperature of the resin adhesive 12 but lower than a hardening temperature of the resin adhesive 12; a step C of bonding the wiring members 11 to all the n solar cells by repeating the step A and the step B alternately; and a step D of hardening the r

Abstract: Solar cells and methods of their manufacture are described that exhibit decreased or eliminated leak current, improved open voltage and improved fill factor characteristics. In an embodiment, a separate processed surface is interposed between a first and a second main surface of a crystal substrate, as prepared by laser irradiation and cut processing. The laser irradiation is applied to an amorphous semiconductor layer of the same conductive type as an underlying single crystal substrate, but does not penetrate an underlying amorphous opposite type layer. Details of lamination and laser characteristics for processing the layers are provided.

Abstract: A solar battery module is provided with a plurality of solar battery cells which are connected to each other by connecting bus bar electrodes (21) formed on the surfaces of the adjacent solar battery cells with wiring material (41a, 41b). The bus bar electrode (21) is embedded in the wiring material (41b), and the solar battery cell (1) and the wiring material (41b) are bonded with a resin.

Abstract: In a solar cell module, a plurality of solar cells are provided between a front surface protection member and a back surface protection member and bus bar electrodes 20 of the plurality of solar cells are electrically connected to each other by wiring members. The solar cell module includes an adhesive layer made of a resin 60 containing a plurality of conductive particles 70, the adhesive layer provided between each of the bus bar electrodes 20 and the wiring member 40. Each of the bus bar electrodes 20 and the corresponding wiring member 40 are electrically connected by the plurality of conductive particles 70. The resin 60 covers side surface of each of the bus bar electrodes 20 and configured to bond the wiring member 40 with the surface of a photoelectric conversion body 10.

Abstract: A backsheet for photovoltaic module superior in hydrolysis resistance and thus in durability. To attain the object, the has backsheet for photovoltaic module has a hydrolysis-resistant film and a resin film laminated on the hydrolysis-resistant film. The hydrolysis-resistant film is made of a polyester resin having a carboxy end-group content of 15 equivalent/ton or less, and the resin film is made of a polypropylene resin.

Abstract: In a solar cell module, a plurality of solar cells are arranged between a front-surface protection member and a back-surface protection member, and electrodes of the plurality of solar cells is electrically connected to each other by a wring member. The solar cell module includes an adhesive layer including a resin 90 and a plurality of conductive particles 80, between the electrodes 10 and the wiring member 70. Each conductive particle 80 has a flattened shape that a maximum thickness D in a plane perpendicular to a solar cell 20 is smaller than a maximum length L in a plane parallel to the solar cell 20. Both ends of each conductive particle 80 in a thickness direction are respectively in contact with one of the electrodes 10 and the wiring member 70.

Abstract: A solar cell according to the present invention includes: a photoelectric conversion part having a photoelectric converting function; and a collector electrode provided at a side of a light-receiving surface of the photoelectric conversion part in a way that parts of the light-receiving surface are exposed. Interconnection tabs are connected at a side of a light-receiving surface of the collector electrode with an adhesive being interposed in between. The collector electrode contains a thermosetting first resin, an conductive material and a second resin for forming a sea-island structure between the second resin and the first resin. The collector electrode includes an internal region in the inside, a concentration ratio of the second resin to the first resin being higher in the internal region than in the surface region at the side of either the adhesive or the photoelectric conversion part.

Abstract: A solar cell module is provided that comprises: a solar cell; a connection electrode provided on each of a light-receiving surface and back surface of the solar cell; a conductive resin adhesive arranged on an upper surface of the connection electrode; and a wiring material electrically connected to the solar cell and connected with the connection electrode and the conductive resin adhesive, wherein the conductive resin adhesive changes color upon curing, and the conductive resin adhesive on the upper surface of the connection electrode provided on the light-receiving surface of the solar cell is arranged within a region corresponding to at least one of the connection electrode and the wiring material, on a projection plane parallel with the light-receiving surface and exposed on a light-receiving surface side.

Abstract: With the method for manufacturing the solar cell module according to the present embodiment, the width W1 of the connection region C in which the wiring member 11 and the connecting electrode 40 are electrically connected is set to be larger than the substantially half of the width W2 of the wiring member 11 in the thermocompression bonding process of the wiring member 11 using the resin adhesive 12 including the particles 13 onto the principal surface of the solar cell 10.