Patent application number | Description | Published |
20110126877 | SOLAR CELL - A cell includes a substrate of a first conductive type, at least one emitter region of a second conductive type opposite to the first conductive type, and disposed at the substrate, a plurality of first electrodes electrically connected to the at least one emitter region, and at least one second electrode electrically connected to the substrate, wherein the substrate is a silicon substrate of a metallurgical grade. | 06-02-2011 |
20110284069 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell is discussed. The solar cell includes an anti-reflection unit positioned on an emitter unit and including a first anti-reflection film having a first refractive index and a second anti-reflection film having a second refractive index different from the first refractive index, wherein a plurality of depressions are formed on at least one surface of a substrate, a depth of each of the plurality of depressions is ⅓ to 1 times a distance between centers of at least two immediately adjacent depressions, and a width of each of the plurality of depressions is 1 to 3 times the depth of each of the plurality of depressions. | 11-24-2011 |
20110308608 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar includes a substrate of a first conductive type, an emitter region of a second conductive type opposite to the first conductive type and forming a p-n junction with the substrate, a first anti-reflection layer positioned on the emitter region, a first electrode connected to the emitter region, a second anti-reflection layer positioned on the first anti-reflection layer and the first electrode, and a second electrode connected to the substrate. | 12-22-2011 |
20120017981 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell and a method for manufacturing the solar cell are discussed. The solar cell includes a substrate, an emitter layer formed at an incident surface of the substrate, a first electrode part connected to the emitter layer, and a textured surface positioned on the incident surface of the substrate, at which the emitter layer is formed. The textured surface includes a plurality of depressions. A surface of an area of the substrate, on which the first electrode part is formed, is a flat surface not including the plurality of depressions. | 01-26-2012 |
20120090675 | SEMICONDUCTOR SUBSTRATE FOR SOLAR CELL AND SOLAR CELL - A solar cell include a polycrystalline semiconductor substrate of a p-type, an emitter region of an n-type and forming a p-n junction with the polycrystalline semiconductor substrate, a first electrode connected to the emitter region, and a second electrode connected to the polycrystalline semiconductor substrate, wherein the polycrystalline semiconductor substrate has a pure p-type impurity concentration of substantially 7.2×10 | 04-19-2012 |
20120180861 | SOLAR CELL - A solar cell includes a substrate of a first conductive type, an emitter region, which is positioned at the substrate and is doped with impurities of a second conductive type opposite the first conductive type, a plurality of first electrodes, which are connected to the emitter region and extend parallel to one another to be spaced apart from one another, a plurality of semiconductor electrodes, which extend in a direction different from an extension direction of the plurality of first electrodes to be spaced apart from one another and have an impurity doping concentration higher than the emitter region, and a second electrode connected to the substrate. A distance between two adjacent semiconductor electrodes is about | 07-19-2012 |
20120184063 | METHOD FOR MANUFACTURING SOLAR CELL - A method for manufacturing a solar cell includes forming an impurity doped region of a second conductive type at a substrate of a first conductive type, sequentially irradiating laser shots onto the impurity doped region of the substrate to form an emitter part including a first emitter region having a first sheet resistance and a second emitter region having a second sheet resistance less than the first sheet resistance, and forming a plurality of first electrodes connected to the second emitter region and forming a second electrode connected to the substrate. | 07-19-2012 |
20120192942 | 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 semiconductor substrate containing first impurities of a first conductive type, an anti-reflection layer which is positioned on the semiconductor substrate and has a fixed charge of the first conductive type, an ohmic contact region in which second impurities of a second conductive type different from the first conductive type of the first impurities of the semiconductor substrate are selectively positioned at the semiconductor substrate, a plurality of first electrodes which are positioned on the ohmic contact region and are connected to the ohmic contact region, and a second electrode connected to the semiconductor substrate. | 08-02-2012 |
20120318349 | 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 region of a second conductive type opposite the first conductive type, the emitter region forming a p-n junction along with the substrate, a passivation layer which is positioned on a back surface of the substrate and has a plurality of via holes exposing portions of the back surface of the substrate, a first electrode connected to the emitter region, and a second electrode which is positioned on a back surface of the passivation layer and is connected to the substrate through the plurality of via holes. | 12-20-2012 |
20130118571 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell includes a substrate formed of n-type single crystal silicon, an emitter region of a p-type which is positioned at a first surface of the substrate and includes a first emitter region having a first sheet resistance and a second emitter region having a second sheet resistance less than the first sheet resistance, a plurality of surface field regions of the n-type locally positioned at a second surface opposite the first surface of the substrate, a plurality of first electrodes which are positioned only on the second emitter region to be separated from one another and are connected to the second emitter region, and a plurality of second electrodes which are positioned on the plurality of surface field regions to be separated from one another and are connected to the plurality of surface field regions. | 05-16-2013 |
20130240031 | SOLAR CELL - A solar cell includes a semiconductor substrate of a first conductive type, an emitter region having a second conductive type different from the first conductive type and positioned at a first surface of the semiconductor substrate, a semiconductor region positioned directly on a second surface opposite the first surface of the semiconductor substrate, forming a charge accumulation layer on the second surface of the semiconductor substrate, and containing impurities of the first conductive type, a first electrode positioned on the first surface of the semiconductor substrate and coupled to the emitter region, and a second electrode positioned on the second surface of the semiconductor substrate and coupled to the semiconductor substrate. | 09-19-2013 |
20140202526 | 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 containing impurities of a first conductive type, an emitter region which is positioned at a front surface of the substrate and contains impurities of a second conductive type opposite the first conductive type, a back passivation layer which is positioned on a back surface of the substrate and has openings, a back surface field region containing impurities of the first conductive type, a first electrode connected to the emitter region, and a second electrode connected to the back surface field region. The back surface field region includes a first back surface field region positioned on the back passivation layer and a second back surface field region, which is positioned at the back surface of the substrate exposed by the openings of the back passivation layer. | 07-24-2014 |