Abstract: In a solar cell element including a silicon substrate that includes a p-type semiconductor region in a surface thereof and an electrode that is located on the p-type semiconductor region and based on aluminum, the electrode includes a glass component containing vanadium oxide, tellurium oxide, and boron oxide, the glass component having a vanadium oxide content smaller than the sum of a tellurium oxide and a boron oxide content. Alternatively, the electrode includes a glass component containing vanadium oxide, tellurium oxide, and boron oxide, the glass component containing 5 to 33 parts by mass of vanadium oxide, 4 to 30 parts by mass of tellurium oxide, and 4 to 18 parts by mass of boron oxide based on 100 parts by mass of the glass component.

Abstract: A solar cell element according to an embodiment of the present invention includes a semiconductor substrate that includes a first semiconductor layer of one conductivity type and a second semiconductor layer of the opposite conductivity type, and a plurality of linear current collector electrodes that are arranged on a first main surface of the semiconductor substrate at the second semiconductor layer side, the plurality of linear current collector electrodes being arranged at intervals in a direction from a middle part toward both end parts of the first main surface. A distance between neighboring ones of the current collector electrodes located in the middle part and a distance between neighboring ones of the current collector electrodes located in the both end parts are different from each other.

Abstract: A solar cell element comprising a semiconductor substrate including a first surface to receive light, and a second surface provided on a back side of the first surface, a plurality of base collector electrodes provided on the second surface of the semiconductor substrate, a plurality of collector electrodes provided on the plurality of base collector electrodes, a connector electrode to electrically connect the collector electrodes adjacent to each other across a region between the plurality of base collector electrodes among the plurality of collector electrodes. A first extracting electrode provided between the plurality of base collector electrodes, and a second extracting electrode electrically connected to at least one of the plurality of collector electrodes.

Abstract: A solar cell with a simple configuration and high efficiency, and a manufacturing method therefor are provided. A solar cell of the present invention includes a semiconductor substrate that has a first surface receiving sunlight and a second surface on the back side of the first surface and that includes a through hole passing through between the first surface and the second surface; and a first electrode that includes a main electrode portion containing a glass component and formed on the first surface of the semiconductor substrate and a conducting portion electrically connected to the main electrode portion, formed in the through hole of the semiconductor substrate, and having a lower glass-component content than the main electrode portion.

Abstract: A solar cell module with a simple configuration and high efficiency is provided. A solar cell module of the present invention is configured by electrically connecting a plurality of solar cell elements. Each of the plurality of solar cell elements includes a plurality of first connection parts representing wiring connection parts in a first electrode and a plurality of second connection parts representing wiring connection parts in a second electrode on the same surface. A first solar cell element and a second solar cell element arranged adjacent to each other have portions of the plurality of first connection parts of the first solar cell element and the plurality of second connection parts of the second solar cell element connected by a wiring having a linear form in plan view.

Abstract: A solar cell module comprises a plurality of solar cell elements including a front surface electrode and a wiring member electrically interconnecting the solar cell elements. The front surface electrode includes a bus bar electrode and finger electrodes, the finger electrodes including a plurality of first finger electrodes and connected to the bus bar electrode, and a plurality of second finger electrodes not connected to the bus bar electrode. The front surface electrode further includes a fine wire electrode that is disposed in a region extending from the bus bar electrode in a longitudinal direction of the bus bar electrode and that is electrically connected to the second finger electrodes, the fine wire electrode including first and second fine wire electrodes intersecting to each other. The wiring member is connected to an intersection of the first and second fine wire electrodes and to the bus bar electrode.

Abstract: A semiconductor substrate comprises a semiconductor region of one conductivity type and a layer of another conductivity type with first, second and side surfaces. Over surfaces on the first surface side, the side surface side and an outer peripheral portion on the second surface side of the semiconductor region, the layer is formed. An electrode of the one conductivity type is located on the second surface adjacent to the layer. The semiconductor substrate includes a trench located between the outer periphery of the second surface and an end of the electrode with a spacing from the electrode and configured to isolate the layer along the outer periphery of the second surface. When viewed from the second surface side, a shortest distance between the end of the electrode and the trench is smaller than a shortest distance between a junction of the layer of the side surface side and the trench.

Abstract: A solar cell module comprises a plurality of solar cell elements including a front surface electrode and a wiring member electrically interconnecting the solar cell elements. The front surface electrode includes a bus bar electrode and finger electrodes, the finger electrodes including a plurality of first finger electrodes and connected to the bus bar electrode, and a plurality of second finger electrodes not connected to the bus bar electrode. The front surface electrode further includes a fine wire electrode that is disposed in a region extending from the bus bar electrode in a longitudinal direction of the bus bar electrode and that is electrically connected to the second finger electrodes, the fine wire electrode including first and second fine wire electrodes intersecting to each other. The wiring member is connected to an intersection of the first and second fine wire electrodes and to the bus bar electrode.

Abstract: A solar cell module with a simple configuration and high efficiency is provided. A solar cell module of the present invention is configured by electrically connecting a plurality of solar cell elements. Each of the plurality of solar cell elements includes a plurality of first connection parts representing wiring connection parts in a first electrode and a plurality of second connection parts representing wiring connection parts in a second electrode on the same surface. A first solar cell element and a second solar cell element arranged adjacent to each other have portions of the plurality of first connection parts of the first solar cell element and the plurality of second connection parts of the second solar cell element connected by a wiring having a linear form in plan view.

Abstract: A solar cell module with a simple configuration and high efficiency is provided. A solar cell module of the present invention is configured by electrically connecting a plurality of solar cell elements. Each of the plurality of solar cell elements includes a plurality of first connection parts representing wiring connection parts in a first electrode and a plurality of second connection parts representing wiring connection parts in a second electrode on the same surface. A first solar cell element and a second solar cell element arranged adjacent to each other have portions of the plurality of first connection parts of the first solar cell element and the plurality of second connection parts of the second solar cell element connected by a wiring having a linear form in plan view.

Abstract: A semiconductor substrate comprising a first surface and a second surface, a first electrode, and a second electrode are arranged. The first electrode comprises a plurality of main electrodes located on the first surface and a plurality of first output taking parts electrically connected to the plurality of main electrodes and located on the second surface. The second electrode comprises one pair of collection parts located on the second surface to sandwich the first output taking parts and a connection part that electrically connects the one pair of collection parts to each other. The plurality of main electrodes comprise a first group located at first intervals and a second group located at second intervals. Third intervals between the first group and the second group are larger than the first and second intervals, and the connection part is located at positions corresponding to the third interval on the second surface.

Abstract: A semiconductor substrates comprises a semiconductor region of one conductivity type and a layer of another conductivity type with first, second and side surfaces. Over surfaces on the first surface side, the side surface side and an outer peripheral portion on the second surface side of the semiconductor region, the layer is formed. An electrode of the one conductivity type is located on the second surface adjacent to the layer. The semiconductor substrate includes a trench located between the outer periphery of the second surface and an end of the electrode with a spacing from the electrode and configured to isolate the layer along the outer periphery of the second surface. When viewed from the second surface side, a shortest distance between the end of the electrode and the trench is smaller than a shortest distance between a junction of the layer of the side surface side and the trench.

Abstract: A solar cell element according to an embodiment of the present invention includes a semiconductor substrate that includes a first semiconductor layer of one conductivity type and a second semiconductor layer of the opposite conductivity type, and a plurality of linear current collector electrodes that are arranged on a first main surface of the semiconductor substrate at the second semiconductor layer side, the plurality of linear current collector electrodes being arranged at intervals in a direction from a middle part toward both end parts of the first main surface. A distance between neighboring ones of the current collector electrodes located in the middle part and a distance between neighboring ones of the current collector electrodes located in the both end parts are different from each other.

Abstract: A solar cell element comprising a semiconductor substrate including a first surface to receive light, and a second surface provided on a back side of the first surface, a plurality of base collector electrodes provided on the second surface of the semiconductor substrate, a plurality of collector electrodes provided on the plurality of base collector electrodes, a connector electrode to electrically connect the collector electrodes adjacent to each other across a region between the plurality of base collector electrodes among the plurality of collector electrodes. A first extracting electrode provided between the plurality of base collector electrodes, and a second extracting electrode electrically connected to at least one of the plurality of collector electrodes.

Abstract: A solar cell with a simple configuration and high efficiency, and a manufacturing method therefor are provided. A solar cell of the present invention includes a semiconductor substrate that has a first surface receiving sunlight and a second surface on the back side of the first surface and that includes a through hole passing through between the first surface and the second surface; and a first electrode that includes a main electrode portion containing a glass component and formed on the first surface of the semiconductor substrate and a conducting portion electrically connected to the main electrode portion, formed in the through hole of the semiconductor substrate, and having a lower glass-component content than the main electrode portion.

Abstract: [Object] An object is to provide a solar cell element exhibiting a reduced warp, a low resistance loss and a high adhesion between the silicon substrate and the electrode, and a method for manufacturing the same. [Solving Means] The solar cell element includes a silicon substrate 1, and a first electrode 5a formed of aluminum and a metal containing zinc on the silicon substrate 1. The solar cell element is produced by a method including the step of preparing a silicon substrate and an electroconductive paste containing an aluminum powder and a powder containing zinc, the step of applying the electroconductive paste onto the silicon substrate, the step of heating the electroconductive paste applied onto the silicon substrate at a temperature higher than the melting point of the powder containing zinc to melt the electroconductive paste, and the step of cooling the molten electroconductive paste to form an electrode.

Abstract: A solar cell module with a simple configuration and high efficiency is provided. A solar cell module of the present invention is configured by electrically connecting a plurality of solar cell elements. Each of the plurality of solar cell elements includes a plurality of first connection parts representing wiring connection parts in a first electrode and a plurality of second connection parts representing wiring connection parts in a second electrode on the same surface. A first solar cell element and a second solar cell element arranged adjacent to each other have portions of the plurality of first connection parts of the first solar cell element and the plurality of second connection parts of the second solar cell element connected by a wiring having a linear form in plan view.