Anti-reflective coating with high optical absorption layer for backside contact solar cells
    2.
    发明授权
    Anti-reflective coating with high optical absorption layer for backside contact solar cells 有权
    用于背面接触太阳能电池的具有高光吸收层的抗反射涂层

    公开(公告)号:US09577120B2

    公开(公告)日:2017-02-21

    申请号:US14271122

    申请日:2014-05-06

    摘要: A multilayer anti-reflection structure for a backside contact solar cell. The anti-reflection structure may be formed on a front side of the backside contact solar cell. The anti-reflection structure may include a passivation level, a high optical absorption layer over the passivation level, and a low optical absorption layer over the high optical absorption layer. The passivation level may include silicon dioxide thermally grown on a textured surface of the solar cell substrate, which may be an N-type silicon substrate. The high optical absorption layer may be configured to block at least 10% of UV radiation coming into the substrate. The high optical absorption layer may comprise high-k silicon nitride and the low optical absorption layer may comprise low-k silicon nitride.

    摘要翻译: 一种用于背面接触太阳能电池的多层抗反射结构。 防反射结构可以形成在背面接触太阳能电池的前侧。 防反射结构可以包括钝化水平,钝化层上的高光吸收层以及高光吸收层上的低光吸收层。 钝化水平可以包括在太阳能电池基板的纹理表面上热生长的二氧化硅,其可以是N型硅衬底。 高光吸收层可以被配置为阻挡进入衬底的UV辐射的至少10%。 高光吸收层可以包括高k氮化硅,低光吸收层可以包括低k氮化硅。