Silicon nanowire-based thin-film silicon crystalline silicon laminated solar photovoltaic cell
A technology of silicon nanowires and photovoltaic cells, applied in photovoltaic power generation, circuits, electrical components, etc., can solve the problems of high purity requirements of amorphous silicon materials, weak photo-generated current of photovoltaic cells, low cell efficiency, etc., and achieve thickness reduction, The effect of high photogenerated voltage and large photocurrent
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[0016] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0017] see figure 1 and figure 2 , a silicon nanowire-based thin-film silicon crystalline silicon laminated solar photovoltaic cell according to the present invention, the upper layer is a NIP amorphous silicon laminated cell, and the lower layer is a PIN heterojunction silicon cell. An array of silicon nanowires is located on the upper surface of the crystalline silicon of the absorber layer of the underlying cell. The silicon nanowire array plays the role of trapping light, which increases the travel of light in the amorphous silicon material, increases the absorption length, and reduces the actual thickness of the amorphous silicon layer, thereby suppressing the occurrence of light-induced attenuation.
[0018] The lower battery of the prese...
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