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    • 4. 发明申请
    • SOLAR CELL BACK SIDE ELECTRODE
    • 太阳能电池背面电极
    • US20130183795A1
    • 2013-07-18
    • US13613231
    • 2012-09-13
    • HIDEKI AKIMOTOMichael F. BarkerChieko Kikuchi
    • HIDEKI AKIMOTOMichael F. BarkerChieko Kikuchi
    • H01L31/18
    • H01B1/22H01L31/022425H01L31/1804Y02E10/547Y02P70/521
    • A method of manufacturing a solar cell back side electrode comprising: (a) preparing a substrate comprising a semiconductor layer and a passivation layer formed on the back side of the semiconductor layer, wherein the passivation layer has one or more openings; (b) applying, onto the back side of the substrate, an aluminum paste comprising, (i) an aluminum powder, (ii) a glass frit comprising 30 to 70 cation mole percent of lead, 1 to 40 cation mole percent of silicon and 10 to 65 cation mole percent of boron, and 1 to 25 cation mole percent of aluminum, based on the total mole of cationic components in the glass frit, and (iii) an organic medium, wherein the aluminum paste covers the openings; and (c) firing the aluminum paste in a furnace, wherein the aluminum paste does not fire through the passivation layer during the firing.
    • 一种制造太阳能电池背面电极的方法,包括:(a)制备包括形成在所述半导体层的背面上的半导体层和钝化层的衬底,其中所述钝化层具有一个或多个开口; (b)在所述基板的背面上施加铝浆料,所述铝浆料包括:(i)铝粉末,(ii)包含30至70阳离子百分比的铅,1至40阳离子摩尔百分比的硅和 10至65阳离子摩尔百分数的硼和1至25阳离子摩尔百分比的铝,基于玻璃料中的阳离子组分的总摩尔数,和(iii)有机介质,其中铝浆覆盖开口; 和(c)在炉中烧制铝浆料,其中铝膏在烧制过程中不会通过钝化层发射。