Patent application number | Description | Published |
20110000536 | Solar cell and method of manufacturing the same - The present invention relates to solar cells. Such solar cells include a substrate containing a first impurity of a first conductive type and having a textured surface with a plurality of jagged portions. Such solar cells also have an emitter layer positioned on the textured surface and containing a second impurity of a second conductive type opposite to the first conductive type, a first electrode having a plurality of first metal particles, electrically connected to the emitter layer, and a second electrode electrically connected to the substrate. The diameter of the first metal particles is larger than the peak-to-peak distance between adjacent jagged portions. | 01-06-2011 |
20110139239 | SOLAR CELL - A solar cell includes a substrate having a textured surface, the textured surface including a plurality of jagged portions; an emitter region forming a p-n junction with the substrate; a plurality of first electrodes connected to the emitter region; and a second electrode connected to the substrate, wherein each of the plurality of jagged portions has a diameter and a height that are equal to or less than 1 μm, and each of the plurality of first electrodes has a width of about 20 μm to about 80 μm. | 06-16-2011 |
20110197964 | SOLAR CELL - A solar cell is discussed. The solar cell includes a substrate of a first conductive type; a first emitter region of a second conductive type opposite the first conductive type and forming a p-n junction with the substrate; a front electrode unit on a first surface of the substrate, and connected to the first emitter region; a back surface field region of the first conductive type formed at a second surface of the substrate opposite the first surface, and having a lattice shape with a plurality of internal portions; a rear passivation layer unit formed on the second surface, and a rear electrode electrically connected to the substrate. | 08-18-2011 |
20110253210 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a solar cell includes forming a textured surface having a plurality of jagged portion at a surface of a substrate of a first conductive type; forming an emitter portion by doping an impurity into the substrate, the emitter portion having a second conductive type opposite to the first conductive type; removing a portion of the emitter portion by using a dry etching method, to form an emitter region; forming an anti-reflection layer on the emitter region; and forming a first electrode connected to the emitter region and a second electrode connected to the substrate. | 10-20-2011 |
20110277826 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A solar cell includes a substrate of a first conductive type; an emitter part of a second conductive type positioned at a front surface of the substrate; a first silicon thin film layer positioned on the emitter part and including amorphous silicon containing impurities of the second type that are doped therein; a first transparent conductive layer positioned on the first silicon thin film layer and electrically connected with the emitter part; a first electrode positioned on the first transparent conductive layer and electrically connected with the first transparent conductive layer; and a second electrode positioned on a back surface of the substrate. For example, the first silicon thin film layer includes N | 11-17-2011 |
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 |
20130153018 | SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a solar cell includes texturing a front surface of a semiconductor substrate having a first conductive type dopant by using a dry etching method, forming an emitter layer by ion-implanting a second conductive type dopant into the front surface of the semiconductor substrate, forming a back passivation film on a back surface of the semiconductor substrate; and forming a first electrode electrically connected to the emitter layer and a second electrode being in partial contact with the back surface of the semiconductor substrate. | 06-20-2013 |
20130160840 | SOLAR CELL - A solar cell according to an embodiment includes a semiconductor substrate; an emitter layer formed on at least one of a front surface and a back surface of the semiconductor substrate; a back surface field layer formed on the back surface of the semiconductor substrate; a first electrode formed on the emitter layer; and a second electrode formed on the back surface field layer. The back surface field layer includes a first portion formed at a portion where the second electrode is not formed and having a first resistance, and a second portion in contact with the second electrode and having a second resistance lower than the first resistance. The second electrode includes a plurality of finger electrodes that are parallel to each other and are spaced apart with distances of about 0.1 to about 1 mm, and have widths of about 50 μm to about 70 μm. | 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 |
20130255777 | 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 formed of an n-type crystalline semiconductor, an emitter region of a p-type positioned at a first surface of the substrate, a first dielectric layer positioned on a second surface opposite the first surface of the substrate, second dielectric layers respectively positioned on the emitter region and the first dielectric layer, a third dielectric layer positioned on the second dielectric layer that is positioned on the emitter region, 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 connected to the substrate. | 10-03-2013 |
20140083498 | SOLAR CELL AND METHOD OF MANUFACTURING THE SAME - A solar cell is discussed. The solar cell includes a semiconductor substrate, a p-type conductive region formed at the semiconductor substrate and including a p-type impurity, and a passivation film formed on the p-type conductive region and including aluminum oxide. The passivation film has a thickness of 7 to 17 Å. | 03-27-2014 |