铜锌铝合金自催化生长硅纳米结构的研究

The Study of Silicon Nano-Structure Grew by Self-Catalysis on Cu-Zn-Al Alloy Substrate

在常温常压下,以Cu-Zn-Al合金为基体经过简单的化学处理,在基体上成功地合成了直径为几十纳米,长度在微米量级的Si一维纳米结构。利用TEM,HREM,EDS等测试手段对Si一维纳米结构的形貌和微观结构进行了表征。观察到Cu-Zn-Al合金中存在着运动的“非线性振荡胞区”,并且发现Si一维纳米结构的生长和形貌与这些胞区的运动有着密切的关系。另外,对于Si一维纳米结构生长机制进行了初步探讨。

Silicon one-dimensional nano-structure has been successfully synthesized on Cu-Zn-Al alloy substrate by simple chemical processing at normal temperature and pressure. The instrumental analyses of transmission electron microscopy, the high-resolution transmission electron microscopy and the energy dispersive spectroscope were used to characterize the morphology and the microstructure of silicon one-dimensional structure. The diameters of the silicon nanotubes were from 10 nm to 40 nm with a length of μn grade. A kind of moving non-linear oscillation cells was discovered in the alloy and the growth and morphology of silicon one-dimensional nanostructure were closely related to this kind of nonlinear oscillation cells. Its growth mechanism was primarily discussed in this paper.