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    • 2. 发明申请
    • SOLAR CELL AND METHOD FOR MANUFACTURING THE SAME, AND METHOD FOR FORMING IMPURITY REGION
    • 太阳能电池及其制造方法,以及形成污染区域的方法
    • US20100229925A1
    • 2010-09-16
    • US12721861
    • 2010-03-11
    • Hyungseok KIMJaewon Chang
    • Hyungseok KIMJaewon Chang
    • H01L31/0352H01L31/18
    • H01L31/1804H01L31/022425H01L31/068H01L31/0682Y02E10/547Y02P70/521
    • Disclosed is a method for manufacturing a solar cell. The method includes forming an impurity layer on a substrate of a first conductive type, the impurity layer having impurities of a second conductive type opposite the first conductive type; forming a first emitter portion having a first impurity concentration in the substrate using the impurity layer by heating the substrate with the impurity layer; forming a second emitter portion having a second impurity concentration at the first emitter portion using the impurity layer by irradiating laser beams on a region of the impurity layer, the second impurity concentration being greater than the first impurity concentration; and forming a first electrode connected to the second emitter portion and a second electrode connected to the substrate.
    • 公开了一种太阳能电池的制造方法。 该方法包括在第一导电类型的衬底上形成杂质层,杂质层具有与第一导电类型相反的第二导电类型的杂质; 通过用所述杂质层加热所述衬底,使用所述杂质层在所述衬底中形成具有第一杂质浓度的第一发射极部分; 通过在所述杂质层的区域上照射激光,使用所述杂质层在所述第一发射极部分形成具有第二杂质浓度的第二发射极部分,所述第二杂质浓度大于所述第一杂质浓度; 以及形成连接到所述第二发射极部分的第一电极和连接到所述衬底的第二电极。