Patent application number | Description | Published |
20090199898 | SOLAR CELL AND METHOD OF TEXTURING SOLAR CELL - A solar cell and a method of texturing a solar cell are disclosed. The method includes coating an ink containing metal particles on a surface of a substrate, drying the ink to attach the metal particles to the surface of the substrate, and differentially etching the surface of the substrate using the metal particles as a catalyst to form an uneven portion. | 08-13-2009 |
20100051099 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A method of manufacturing a solar cell includes forming jagged portions non-uniformly on a surface of a substrate, forming a first type semiconductor and a second type semiconductor in the substrate, forming a first electrode to contact the first type semiconductor, and forming a second electrode to contact the second type semiconductor. An etchant used in a wet etching process in manufacturing the solar cell includes about 0.5 wt % to 10 wt % of HF, about 30 wt % to 60 wt % of HNO | 03-04-2010 |
20100108129 | SILICON SOLAR CELL AND METHOD OF MANUFACTURING THE SAME - A silicon solar cell and a method of manufacturing the same are disclosed. The silicon solar cell includes a silicon semiconductor substrate doped with first conductive impurities, an emitter layer doped with second conductive impurities having polarities opposite polarities of the first conductive impurities on the substrate, an anti-reflective layer on an entire surface of the substrate, an upper electrode that passes through the anti-reflective layer and is connected to the emitter layer, and a lower electrode connected to a lower portion of the substrate. The emitter layer includes a first emitter layer heavily doped with the second conductive impurities and a second emitter layer lightly doped with the second conductive impurities. A surface resistance of the second emitter layer is 100 Ohm/sq to 120 Ohm/sq. | 05-06-2010 |
20100319770 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell and a method for manufacturing the same are disclosed. The solar cell includes a first conductive type substrate, an emitter layer of a second conductive type opposite the first conductive type, the emitter layer and the substrate forming a p-n junction, a plurality of first electrodes electrically connected to the emitter layer, at least one current collector connected to the plurality of first electrodes, and a second electrode electrically connected to the substrate. Each of the plurality of first electrodes includes a first electrode layer and a second electrode layer on the first electrode layer. The at least one current collector includes a plurality of first current collector layers having a plurality of first portions and at least one second current collector layer on the plurality of first current collector layers. | 12-23-2010 |
20110094567 | SOLAR CELL, METHOD OF MANUFACTURING THE SAME, AND SOLAR CELL MODULE - A solar cell and a solar cell module including the solar cells are disclosed. The solar cell includes a substrate of a first conductive type; an emitter layer of a second conductive type positioned at a light receiving surface of the substrate; a plurality of first electrodes that are positioned on the emitter layer and are electrically connected to the emitter layer; and at least one first current collector that is positioned on the emitter layer in a direction crossing the plurality of first electrodes, wherein a thickness of each of the plurality of first electrodes is different from a thickness of the at least one first current collector, and a difference of the thickness of the each first electrode to the thickness of the at least one current collector is equal to or less than about 0.5 times the thickness of the at least one first current collector. | 04-28-2011 |
20110094586 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell and a method for manufacturing the same are discussed. The solar cell includes a substrate of a first conductive type, an emitter portion that has a second conductive type opposite the first conductive type and forms a p-n junction along with the substrate, a first anti-reflection layer that is positioned on the emitter portion and has a thickness of about 5 nm to 35 nm, a second anti-reflection layer positioned on the first anti-reflection layer, a first electrode electrically connected to the emitter portion, and a second electrode electrically connected to the substrate. | 04-28-2011 |
20110139226 | SELECTIVE EMITTER SOLAR CELL - A selective emitter solar cell is discussed. The selective emitter solar cell includes a substrate of a first conductive type, an emitter layer of a second conductive type positioned on a light receiving surface of the substrate, and a plurality of first electrodes that are positioned on the emitter layer and are electrically connected to the emitter layer. The emitter layer includes a first emitter portion having a first impurity concentration and a second emitter portion having a second impurity concentration higher than the first impurity concentration. The second emitter portion includes a first region that directly contacts at least one of the plurality of first electrodes and overlaps the at least one of the plurality of first electrodes and a second region that is positioned around the first region and does not overlap the at least one of the plurality of first electrodes. A line width of the second region is equal to or less than about eight times a line width of each of the plurality of first electrodes. | 06-16-2011 |
20110146765 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell and a method for manufacturing the same are disclosed. The solar cell includes a first conductive type substrate, an emitter layer of a second conductive type opposite the first conductive type, the emitter layer and the substrate forming a p-n junction, a plurality of first electrodes electrically connected to the emitter layer, and a second electrode electrically connected to the substrate. At least one of the plurality of first electrodes includes a first electrode layer, a plurality of first electrode auxiliaries separated from the first electrode layer, and a second electrode layer positioned on an upper surface and a lateral surface of the first electrode layer and on an upper surface and a lateral surface of each of the plurality of first electrode auxiliaries. | 06-23-2011 |
20120055538 | SOLAR CELL MODULE - A solar cell module is discussed. The solar cell module includes a plurality of solar cells each including a substrate and an anti-reflection layer positioned on the substrate, a protective member surrounding the plurality of solar cells, and a transparent member positioned on the protective member. The protective member is formed of a silicon resin. The anti-reflection layer includes a first anti-reflection layer positioned on the substrate and a second anti-reflection layer positioned on the first anti-reflection layer. The first anti-reflection layer and the second anti-reflection layer are formed of different materials. | 03-08-2012 |
20120085398 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell includes a first conductivity type substrate; an emitter unit having a second conductivity type opposite to the first conductivity type, and forming a p-n junction with the substrate; an anti-reflective film positioned on the emitter unit; a plurality of first electrodes positioned on the anti-reflective film and connected with the emitter unit; and a second electrode connected with the substrate, wherein the emitter unit includes a first region and a second region that are positioned between an outermost first electrode among the plurality of first electrodes and the edge of the substrate, and a thickness of the first region gradually increases in going from the edge of the substrate to the outermost first electrode, and a thickness of the second region is uniform. | 04-12-2012 |
20120118372 | SOLAR CELL - A solar cell includes a substrate of a first conductive type, an emitter layer which is positioned at an incident surface of the substrate and has a second conductive type opposite the first conductive type, a front electrode which is positioned on the incident surface of the substrate and is electrically connected to the emitter layer, a back passivation layer which is positioned on a back surface opposite the incident surface of the substrate, has at least one hole, and contains intrinsic silicon, and a back electrode layer positioned on the back passivation layer. The back electrode layer is electrically connected to the substrate through the at least one hole of the back passivation layer and contains a distribution of a silicon material. | 05-17-2012 |
20120152338 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a solar cell is discussed. The method may include injecting first impurity ions at a first surface of a substrate by using a first ion implantation method to form a first impurity region, the substrate having a first conductivity type and the first impurity region having a second conductivity type, heating the substrate with the first impurity region to activate the first impurity region to form an emitter region, etching the emitter region from a surface of the emitter region to a predetermined depth to form an emitter part, and forming a first electrode on the emitter part to connect to the emitter part and a second electrode on a second surface of the substrate, which is opposite the first surface of the substrate to connect to the second surface of the substrate. | 06-21-2012 |
20120167977 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell includes a substrate of a first conductive type, an emitter layer which is positioned at one surface of the substrate and has a second conductive type opposite the first conductive type, an anti-reflection layer which is positioned on the emitter layer and has a contact line, and an electrode part positioned on the emitter layer exposed by the contact line. The electrode part includes a seed layer directly contacting the emitter layer. The emitter layer has a first thickness of a formation area of the anti-reflection layer and a second thickness of a formation area of the seed layer. The first thickness is different from the second thickness. | 07-05-2012 |
20120180860 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell and a method for manufacturing the same are disclosed. The method for manufacturing the solar cell includes forming an emitter region of a second conductive type opposite a first conductive type at a first surface of a substrate of the first conductive type by using an ion implantation method, forming a passivation layer on a second surface positioned opposite the first surface of the substrate, and forming a first electrode, which is positioned on the first surface of the substrate and is connected to the emitter region, and a second electrode, which is positioned on the second surface of the substrate and is selectively connected to the substrate through the passivation layer. | 07-19-2012 |
20140116506 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A method of manufacturing a solar cell includes forming jagged portions non-uniformly on a surface of a substrate, forming a first type semiconductor and a second type semiconductor in the substrate, forming a first electrode to contact the first type semiconductor, and forming a second electrode to contact the second type semiconductor. An etchant used in a wet etching process in manufacturing the solar cell includes about 0.5 wt % to 10 wt % of HF, about 30 wt % to 60 wt % of HNO | 05-01-2014 |
20140256084 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a solar cell is discussed. The method may include injecting first impurity ions at a first surface of a substrate by using a first ion implantation method to form a first impurity region, the substrate having a first conductivity type and the first impurity ions having a second conductivity type, and the first impurity region having the second conductivity type; heating the substrate with the first impurity region to activate the first impurity region to form an emitter region from the first impurity region; etching the emitter region from a surface of the emitter region to a predetermined depth to form an emitter part from the emitter region; and forming a first electrode on the emitter part to connect to the emitter part and a second electrode on a second surface of the substrate to connect to the second surface of the substrate. | 09-11-2014 |