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首页> 外文期刊>Nanotechnology >The growth of CuSi composite nanorod arrays by oblique angle co-deposition, and their structural, electrical and optical properties
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The growth of CuSi composite nanorod arrays by oblique angle co-deposition, and their structural, electrical and optical properties

机译：斜角共沉积生长CuSi复合纳米棒阵列及其结构，电学和光学性质

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摘要

Different CuSi composite nanorods with 0-100at.% Cu were fabricated by an oblique angle co-deposition technique. The effects of increasing Cu during deposition on the morphologies, structures and properties were investigated. During co-evaporation, the addition of Cu decreases the nanorod width and height but increases the nanorod tilting angle. The polarized optical transmission spectra reveal that all the nanorod samples show a remarkable anisotropic response to visible light with an eccentricity e≈1, whereas their optical response to NIR light depends strongly on the Cu composition, and the related eccentricity increases monotonically with the increase of Cu. The obtained amorphous Si film has a resistivity of approximately 4.9×10 ~4Ωcm. The incorporation of 5-75at.% Cu increases the electrical conductance from two to eight orders of magnitude. The improved conductance and the unique optical properties of the Si-based nanocomposites could have potential applications for Li-ion battery anode and optical design.
机译：通过斜角共沉积技术制备了Cu含量为0-100％的不同CuSi复合纳米棒。研究了沉积过程中铜的增加对形貌，结构和性能的影响。在共蒸发过程中，添加铜会降低纳米棒的宽度和高度，但会增加纳米棒的倾斜角度。偏振光的透射光谱表明，所有纳米棒样品均对偏心率为e≈1的可见光表现出显着的各向异性响应，而它们对NIR光的光学响应则强烈依赖于Cu的组成，并且相关的偏心率随C的增加而单调增加。铜所获得的非晶Si膜具有大约4.9×10〜4Ωcm的电阻率。 5-75at。％Cu的结合将电导率从两个数量级增加到八个数量级。硅基纳米复合材料的改进的电导率和独特的光学性能可以为锂离子电池阳极和光学设计提供潜在的应用。

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