PSEUDOMORPHIC WINDOW LAYER FOR MULTIJUNCTION SOLAR CELLS
    4.
    发明申请
    PSEUDOMORPHIC WINDOW LAYER FOR MULTIJUNCTION SOLAR CELLS 有权
    用于多功能太阳能电池的PSEUDOMORPHIC窗帘层

    公开(公告)号:US20120216858A1

    公开(公告)日:2012-08-30

    申请号:US13370500

    申请日:2012-02-10

    IPC分类号: H01L31/0687 H01L31/18

    摘要: Photovoltaic cells with one or more subcells are provided with a wide band gap, pseudomorphic window layer of at least 15 nm in thickness and with an intrinsic material lattice constant that differs by at least 1% from an adjacent emitter layer. This window layer has a higher band gap than a window layer with substantially the same intrinsic material lattice constant as the adjacent emitter layer, which increases the light transmission through the window, thereby increasing the current generation in the solar cell. The quality of being pseudomorphic material preserves a good interface between the window and the emitter, reducing the minority carrier surface recombination velocity. A method is provided for building a wide band gap, pseudomorphic window layer of a photovoltaic cell that has an intrinsic material lattice constant that differs by at least 1% from the adjacent emitter layer.

    摘要翻译: 具有一个或多个子电池的光电池具有厚度至少为15nm的宽带隙,假晶窗口层,其本征材料晶格常数与相邻发射极层相差至少1%。 该窗口层具有比具有与相邻发射极层基本上相同的本征材料晶格常数的窗口层的更高的带隙,这增加了通过窗口的光透射,从而增加了太阳能电池中的电流产生。 假型材料的质量保持了窗口和发射极之间良好的界面,减少了少数载流子表面复合速度。 提供了一种用于构建光电池的宽带隙,伪晶体窗层的方法,其具有与相邻发射极层相差至少1%的本征材料晶格常数。

    Pseudomorphic window layer for multijunction solar cells
    5.
    发明授权
    Pseudomorphic window layer for multijunction solar cells 有权
    多结太阳能电池的假晶窗层

    公开(公告)号:US08962991B2

    公开(公告)日:2015-02-24

    申请号:US13370500

    申请日:2012-02-10

    摘要: Photovoltaic cells with one or more subcells are provided with a wide band gap, pseudomorphic window layer of at least 15 nm in thickness and with an intrinsic material lattice constant that differs by at least 1% from an adjacent emitter layer. This window layer has a higher band gap than a window layer with substantially the same intrinsic material lattice constant as the adjacent emitter layer, which increases the light transmission through the window, thereby increasing the current generation in the solar cell. The quality of being pseudomorphic material preserves a good interface between the window and the emitter, reducing the minority carrier surface recombination velocity. A method is provided for building a wide band gap, pseudomorphic window layer of a photovoltaic cell that has an intrinsic material lattice constant that differs by at least 1% from the adjacent emitter layer.

    摘要翻译: 具有一个或多个子电池的光电池具有厚度至少为15nm的宽带隙,假晶窗口层,其本征材料晶格常数与相邻发射极层相差至少1%。 该窗口层具有比具有与相邻发射极层基本上相同的本征材料晶格常数的窗口层的更高的带隙,这增加了通过窗口的光透射,从而增加了太阳能电池中的电流产生。 假型材料的质量保持了窗口和发射极之间良好的界面,减少了少数载流子表面复合速度。 提供了一种用于构建光电池的宽带隙,伪晶体窗层的方法,其具有与相邻发射极层相差至少1%的本征材料晶格常数。