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    • 6. 发明公开
    • Selective emitter solar cell
    • Solarzelle mit selektivem发射器
    • EP2372773A3
    • 2012-09-19
    • EP10009962.1
    • 2010-09-20
    • LG ELECTRONICS INC.
    • Ha, JungminAhn, JunyongKim, Jinho
    • H01L31/0224H01L31/068H01L31/18
    • H01L31/1804H01L31/022425H01L31/068Y02E10/547Y02P70/521
    • 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.
    • 讨论了一种选择性发射极太阳能电池。 所述选择性发射极太阳能电池包括位于所述基板的受光面上的第一导电型基板,第二导电类型的发射极层,以及位于所述发射极层上的多个第一电极, 发射极层。 发射极层包括具有第一杂质浓度的第一发射极部分和具有高于第一杂质浓度的第二杂质浓度的第二发射极部分。 第二发射器部分包括直接接触多个第一电极中的至少一个并与多个第一电极中的至少一个重叠的第一区域和位于第一区域周围并且至少与第一区域重叠的第二区域 多个第一电极中的一个。 第二区域的线宽度等于或小于多个第一电极中的每一个的线宽度的约八倍。