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    • 7. 发明申请
    • SOLAR CELL, AND PROCESS FOR PRODUCING SOLAR CELL
    • 太阳能电池和生产太阳能电池的方法
    • US20140020738A1
    • 2014-01-23
    • US14008821
    • 2012-03-28
    • Yasuhiro AidaValerie DepredurandSusanne Siebentritt
    • Yasuhiro AidaValerie DepredurandSusanne Siebentritt
    • H01L31/032
    • H01L31/0322H01L31/0749Y02E10/541Y02P70/521
    • A solar cell that can increase open-circuit voltage compared to the conventional solar cell, and as a result, can increase conversion efficiency. The solar cell includes a first absorber layer and a second absorber layer, wherein the first absorber layer is a p-type semiconductor layer containing a Ib group element, a IIIb group element, and a VIb group element and including a peak of luminescence whose half width is not less than 1 meV and not more than 15 meV in a photoluminescence spectrum or a cathodoluminescence spectrum; and the second absorber layer contains a Ib group element, a IIIb group element, and a VIb group element, the composition ratio of the Ib group element to the IIIb group element is not less than 0.1 and less than 1.0, and the second absorber layer is provided on the side of the light entering surface of the first absorber layer.
    • 与常规太阳能电池相比,可以增加开路电压的太阳能电池,结果可以提高转换效率。 太阳能电池包括第一吸收层和第二吸收层,其中第一吸收层是包含Ib族元素,IIIb族元素和VIb族元素的p型半导体层,并且包括其半数的发光峰 在光致发光光谱或阴极发光光谱中宽度不小于1meV且不大于15meV; 第二吸收体层含有Ib族元素,IIIb族元素和VIb族元素,Ib族元素与IIIb族元素的组成比为0.1以上且小于1.0,第二吸收体层 设置在第一吸收体层的光入射面的一侧。