CREOL, The College of Optics & Photonics, University of Central Florida, Orlando, Florida 32816, United States.
Nano Lett. 2011 Nov 9;11(11):4768-73. doi: 10.1021/nl202583g. Epub 2011 Oct 14.
We investigate the lower limit of nanowire diameters stably produced by the process of thermal fiber drawing and fiber tapering. A centimeter-scale macroscopic cylindrical preform containing the nanowire material in the core encased in a polymer scaffold cladding is thermally drawn in the viscous state to a fiber. By cascading several iterations of the process, continuous reduction of the diameter of an amorphous semiconducting chalcogenide glass is demonstrated. Starting from a 10-mm-diameter rod we thermally draw hundreds of meters of continuous sub-5-nm-diameter nanowires. Using this approach, we produce macroscopic lengths of high-density, well-ordered, globally oriented nanowire arrays.
我们研究了通过热纤维拉伸和纤维变细过程稳定生产纳米线的下限。一个厘米尺度的宏观圆柱形预制件，其中包含纳米线材料的芯被聚合物支架包层包裹，在粘性状态下被热拉伸成纤维。通过级联几个这样的过程，实现了非晶半导体硫属化物玻璃直径的连续减小。从一个 10 毫米直径的棒开始，我们热拉制了数百米连续的亚 5 纳米直径的纳米线。使用这种方法，我们生产出了宏观长度的高密度、有序、全局取向的纳米线阵列。
