Patent application number | Description | Published |
20100018573 | METHOD FOR MANUFACTURING SOLAR CELL AND SOLAR CELL MANUFACTURED BY THE METHOD - A method for manufacturing a solar cell includes (S | 01-28-2010 |
20100024880 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to a solar cell. The solar cell includes a substrate of a first conductive type, an emitter layer of a second conductive type opposite the first conductive type on the substrate, first and second anti-reflection layers that are sequentially positioned on the emitter layer, a first electrode electrically connected to the emitter layer, first to third passivation layers that are sequentially positioned on the substrate, each of the first to third passivation layers including a plurality of exposed portions, and a plurality of second electrodes electrically connected to portions of the substrate exposed by the plurality of exposed portions. | 02-04-2010 |
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 |
20100071762 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell includes a p-n structure having a first conductive semiconductor substrate, a second conductive semiconductor layer formed on the first conductive semiconductor substrate and having a conduction opposite to the first conductive semiconductor substrate, and a p-n junction formed at an interface between the first and second conductive semiconductor substrate/layer; a first anti-reflection film formed on the second conductive semiconductor layer and composed of SiNx:H thin film with 40-100 nm thickness; a second anti-reflection film formed on the first anti-reflection film and composed of silicon oxy-nitride; a front electrode formed on the second anti-reflection film in a predetermined pattern and connected to the second conductive semiconductor layer through the first and second anti-reflection films; and a rear electrode formed at an opposite side to the front electrode with the first conductive semiconductor substrate being interposed therebetween to be connected to the first conductive semiconductor substrate. | 03-25-2010 |
20100224228 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME, AND SOLAR CELL MODULE - A charge transferor of a solar cell, which collects and transfer charges generated from a semiconductor substrate, includes at least one electrode collecting the charges; and at least one collector transferring the charges collected by the at least one electrode, the at least one collector being included in at least one collector region on the substrate, wherein the at least one collector region in a first direction comprises at least one deletion portion where the at least one collector is not formed. | 09-09-2010 |
20110017290 | METHOD FOR MANUFACTURING SOLAR CELL AND SOLAR CELL MANUFACTURED BY THE METHOD - A method for manufacturing a solar cell includes (S1) forming, on a first conductive semiconductor substrate, a second conductive semiconductor layer having an opposite conduction type by means of ion implantation to form a pn junction in an interface thereof; (S2) treating an alkali solution on the second conductive semiconductor layer for texturing; (S3) forming an antireflection film on the textured second conductive semiconductor layer; (S4) forming a front electrode to pass through a partial region of the antireflection film and connect to a part of the second conductive semiconductor layer; and (S5) forming a rear electrode at an opposite side to the front electrode with the first conductive semiconductor substrate being interposed therebetween such that the rear electrode is connected to the first conductive semiconductor substrate. The second conductive semiconductor layer, namely an emitter layer, functions as an etch stop layer. | 01-27-2011 |
20110023960 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell includes a p-n structure having a first conductive semiconductor substrate, a second conductive semiconductor layer formed on the first conductive semiconductor substrate and having a conduction opposite to the first conductive semiconductor substrate, and a p-n junction formed at an interface between the first and second conductive semiconductor substrate/layer; a first anti-reflection film formed on the second conductive semiconductor layer and composed of SiNx:H thin film with 40-100 nm thickness; a second anti-reflection film formed on the first anti-reflection film and composed of silicon oxy-nitride; a front electrode formed on the second anti-reflection film in a predetermined pattern and connected to the second conductive semiconductor layer through the first and second anti-reflection films; and a rear electrode formed at an opposite side to the front electrode with the first conductive semiconductor substrate being interposed therebetween to be connected to the first conductive semiconductor substrate. | 02-03-2011 |
20110048531 | SOLAR CELL AND FABRICATING METHOD THEREOF - Discussed herein are a solar cell and a fabricating method thereof. The solar cell includes a first conductivity-type semiconductor substrate, a second conductivity-type semiconductor layer formed on a front surface of the first conductivity-type semiconductor substrate, and having a conductivity opposite to that of the first conductivity-type semiconductor substrate, an anti-reflection film including at least one opening exposing a part of a surface of the second conductivity-type semiconductor layer, and formed on the second conductivity-type semiconductor layer, at least one front electrode contacting a part of the surface of the second conductivity-type semiconductor layer exposed through the at least one opening, and at least one rear electrode formed on a rear surface of the first conductivity-type semiconductor substrate, wherein the at least one front electrode includes a metal containing silver and lead-free glass frit. | 03-03-2011 |
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 |
20110308601 | SOLAR CELL - 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 layer of a second conductive type opposite the first conductive type, a plurality of first electrodes connected to the emitter layer, at least one first current collector connected to the plurality of first electrodes, and a second electrode connected to the substrate. The emitter layer forms a p-n junction along with the substrate. Each of the plurality of first electrodes has a multi-layered structure, and the at least one first current collector has a single-layered structure. | 12-22-2011 |
20120037219 | SOLAR CELL - 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 layer of a second conductive type opposite the first conductive type, a plurality of first electrodes each including a first electrode layer connected to the emitter layer and a second electrode layer positioned on the first electrode layer, at least one first current collector connected to the plurality of first electrodes, and a second electrode connected to the substrate. The emitter layer forms a p-n junction along with the substrate. The first electrode layer has a first width and the second electrode layer has a second width less than the first width of the first electrode layer. | 02-16-2012 |
20120103389 | SOLAR CELL MODULE - A solar cell module includes a plurality of solar cells each including a substrate, an emitter region positioned at a back surface of the substrate, first electrodes electrically connected to the emitter region, second electrodes electrically connected to the substrate, a first current collector connecting the first electrodes, and a second current collector connecting the second electrodes, and a first connector connecting a first current collector of a first solar cell of the plurality of solar cells to a second current collector of a second solar cell adjacent to the first solar cell. The first current collector of the first solar cell and the second current collector of the second solar cell have a different polarity. | 05-03-2012 |
20120174975 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell includes a substrate of a first conductive type, an emitter region of a second conductive type opposite the first conductive type which is positioned at the substrate and has a first sheet resistance, a first heavily doped region which is positioned at the substrate and has a second sheet resistance less than the first sheet resistance, a plurality of first electrodes which are positioned on the substrate, overlap at least a portion of the first heavily doped region, and are connected to the at least a portion of the first heavily doped region, and at least one second electrode which is positioned on the substrate and is connected to the substrate. | 07-12-2012 |
20120222740 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME, AND SOLAR CELL MODULE - A charge transferor of a solar cell, which collects and transfer charges generated from a semiconductor substrate, includes at least one electrode collecting the charges; and at least one collector transferring the charges collected by the at least one electrode, the at least one collector being included in at least one collector region on the substrate, wherein the at least one collector region in a first direction comprises at least one deletion portion where the at least one collector is not formed. | 09-06-2012 |
20120291839 | SOLAR CELL AND SOLAR CELL MODULE - A solar cell includes a semiconductor substrate, an emitter region positioned at the semiconductor substrate, a first electrode which is positioned on the semiconductor substrate and is connected to the emitter region, a second electrode which is positioned on the semiconductor substrate and is connected to the semiconductor substrate, and a second electrode current collector which is positioned on the semiconductor substrate and is connected to the second electrode. An overlap distance between the second electrode and the second electrode current collector in a first direction corresponding to an extension direction of a conductive film positioned on the second electrode current collector is less than an overlap distance between the second electrode and the second electrode current collector in a second direction crossing the first direction. | 11-22-2012 |
20130122635 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to a solar cell. The solar cell includes a substrate of a first conductive type, an emitter layer of a second conductive type opposite the first conductive type on the substrate, first and second anti-reflection layers that are sequentially positioned on the emitter layer, a first electrode electrically connected to the emitter layer, first to third passivation layers that are sequentially positioned on the substrate, each of the first to third passivation layers including a plurality of exposed portions, and a plurality of second electrodes electrically connected to portions of the substrate exposed by the plurality of exposed portions. | 05-16-2013 |
20130139884 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a solar cell according to an embodiment of the present invention includes preparing a semiconductor substrate having a first conductive type dopant; ion-implanting a pre-amorphization elements into a front surface of the semiconductor substrate to form an amorphous layer; and forming an emitter layer by ion-implanting second conductive type dopant into the front surface of the semiconductor substrate. The method then further includes heat-treating the layers to activate the second conductive type dopant. The method further includes forming a back surface field layer at a back surface of the semiconductor substrate by ion-implanting a first conductive type dopant. | 06-06-2013 |
20130160839 | SOLAR CELL - A solar cell is discussed. The solar cell includes a substrate of a first conductive type, an emitter region which is positioned at a front surface of the substrate and has a second conductive type different from the first conductive type, a front passivation region including a plurality of layers which are sequentially positioned on the emitter region, a back passivation region which is positioned on a back surface opposite the front surface of the substrate and includes three layers, a plurality of front electrodes which pass through the front passivation region and are connected to the emitter region, and at least one back electrode which passes through the back passivation region and is connected to the substrate. | 06-27-2013 |
20130164887 | METHOD FOR MANUFACTURING A SOLAR CELL - In a method for manufacturing a solar cell where the solar cell includes a dopant layer having a first portion of a first resistance and a second portion of a second resistance lower than the first resistance, the method includes ion-implanting a dopant into the semiconductor substrate to form the dopant layer; firstly activating by heating the second portion and activating the dopant at the second portion; and secondly activating by heating the first portion and the second portion and activating the dopant at the first portion and the second portion. | 06-27-2013 |
20130186459 | BIFACIAL SOLAR CELL - A bifacial solar cell is discussed. The bifacial solar cell includes a substrate, a p | 07-25-2013 |
20140057384 | SOLAR CELL AND FABRICATING METHOD THEREOF - Discussed herein are a solar cell and a fabricating method thereof. The solar cell includes a first conductivity-type semiconductor substrate, a second conductivity-type semiconductor layer formed on a front surface of the first conductivity-type semiconductor substrate, and having a conductivity opposite to that of the first conductivity-type semiconductor substrate, an anti-reflection film including at least one opening exposing a part of a surface of the second conductivity-type semiconductor layer, and formed on the second conductivity-type semiconductor layer, at least one front electrode contacting a part of the surface of the second conductivity-type semiconductor layer exposed through the at least one opening, and at least one rear electrode formed on a rear surface of the first conductivity-type semiconductor substrate, wherein the at least one front electrode includes a metal containing silver and lead-free glass frit. | 02-27-2014 |
20140065757 | METHOD FOR MANUFACTURING SOLAR CELL - A method for manufacturing a solar cell includes performing a dry etching process to form a textured surface including a plurality of minute protrusions on a first surface of a semiconductor substrate, performing a first cleansing process for removing damaged portions of surfaces of the minute protrusions using a basic chemical and removing impurities adsorbed on the surfaces of the minute protrusions, performing a second cleansing process for removing impurities remaining or again adsorbed on the surfaces of the minute protrusions using an acid chemical after performing the first cleansing process, and forming an emitter region at the first surface of the semiconductor substrate. | 03-06-2014 |
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 |
20140230881 | Solar Cell Module - A solar cell module includes a plurality of solar cells each including a substrate, an emitter region positioned at a back surface of the substrate, first electrodes electrically connected to the emitter region, second electrodes electrically connected to the substrate, a first current collector positioned at ends of the first electrodes, and a second current collector at ends of the second electrodes, and a first connector connecting a first current collector of a first solar cell of the plurality of solar cells to a second current collector of a second solar cell adjacent to the first solar cell. The first current collector of the first solar cell and the second current collector of the second solar cell each have a different polarity. | 08-21-2014 |