Liu Ming, Lu Ganhua, Chen Junhong
Department of Mechanical Engineering, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA.
Nanotechnology. 2008 Jul 2;19(26):265705. doi: 10.1088/0957-4484/19/26/265705. Epub 2008 May 20.
Silicon nanocrystals of a few nanometers in size are of great interest for optoelectronic applications. Here we present a mini-arc plasma method to produce silicon nanocrystals at atmospheric pressure directly from solid silicon precursors. The product silicon nanocrystals are then assembled onto the external surface of carbon nanotubes (CNTs) to form hybrid nanostructures. The absorption properties of both the silicon nanocrystals and the Si-CNT hybrid structures have been characterized. Quantum size effects have been observed for as-produced silicon nanocrystals. The resulting silicon nanocrystals and hybrid nanostructures are promising for optoelectronic applications.
尺寸为几纳米的硅纳米晶体在光电子应用方面具有极大的吸引力。在此，我们展示了一种微弧等离子体方法，可在大气压下直接由固态硅前驱体生产硅纳米晶体。然后将所得的硅纳米晶体组装到碳纳米管（CNT）的外表面上，以形成混合纳米结构。已对硅纳米晶体和硅 - 碳纳米管混合结构的吸收特性进行了表征。对于所制备的硅纳米晶体，已观察到量子尺寸效应。所得的硅纳米晶体和混合纳米结构在光电子应用方面具有广阔前景。
