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Effects of Electroformed Fe-Ni Substrate Textures on Light- trapping in Thin Film Solar Cells

机译:电铸Fe-Ni衬底纹理对薄膜太阳能电池中光陷阱的影响

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Electroforming can be used to separate electrodeposited metal from the surface of a metal or otherconductive material to produce new metallic products with fine shapes. Because Si thin-film solar cellspossess fewer absorption layers than other compound thin-film solar cells, light-trapping technology isrequired to increase the rate of light absorption. Various metal substrate shapes can be constructed inthe electroforming process, depending on the shape of the mandrel surface. The objective of this studywas to construct specific textured substrates through electroforming to improve light-trappingefficiency in silicon (Si) thin-film solar cells. We constructed pyramid- and V-shaped substrates atangles of 30°, 45°, and 60° by electroforming. To observe the reflective properties of the manufacturedsubstrates, we used an ultraviolet/visible (UV/Vis) spectrometer to measure the total and diffusedreflectance. We found that an increase in the contact angle due to changing texture led to a decrease intotal reflectance in Fe–Ni alloy substrates. We concluded that substrate texture led to an increase in thelight paths in the light-absorbing layers of the thin-film solar cells.
机译:电铸可用于将电沉积的金属与金属或其他导电材料的表面分离,以生产形状精细的新金属产品。由于Si薄膜太阳能电池比其他化合物薄膜太阳能电池具有更少的吸收层,因此需要采用光阱技术来提高光吸收率。取决于心轴表面的形状,可以在电铸工艺中构造各种金属基板形状。这项研究的目的是通过电铸来构造特定的纹理化基板,以提高硅(Si)薄膜太阳能电池的捕光效率。我们通过电铸法构造了30°,45°和60°角的金字塔形和V形基板。为了观察制成的基板的反射特性,我们使用了紫外/可见(UV / Vis)光谱仪来测量总反射率和漫反射率。我们发现,由于纹理改变而导致的接触角的增加导致Fe-Ni合金基底的总反射率降低。我们得出的结论是,衬底纹理导致薄膜太阳能电池的光吸收层中的光路增加。

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