发光学报, 2010, 31 (5): 743, 网络出版: 2011-02-15
一维纳米SiC-CNTs复合结构的生长机制和阴极射线发光
Growth Mechanism and Cathodoluminescence of One-dimensional Composite Nanostructure
摘要
采用直接固相反应法制备了一维SiC-CNTs纳米复合结构。初始反应原料为纯的硅粉和碳纳米管混合物, 没有使用任何触媒, 在1 400 ℃温度下获得了一维纳米产物。采用X射线衍射、扫描电子显微镜、拉曼光谱、阴极射线发光光谱研究了产物的结构和光学性质。获得的一维SiC-CNTs纳米复合结构外径约为60 nm, 长度超过几个微米。CL谱中存在三个发射带, 中心位置分别为2.89,2.39,2.22 eV。
Abstract
One-dimensional silicon carbide-carbon nanotube composite nanostructure was fabricated using a direct solid reaction process between pure silicon powders and carbon nanotubes at 1 400 ℃ in this paper. A structural and optical analysis, by mean of X-ray diffraction, scanning electron microscopy, Raman scattering and cathodoluminescence spectroscopy were performed. The outer diameter of the as-prepared one-dimensional composite nanostructure was approximately 60 nm. The composite products showed pronounced luminescent properties with three emission bands centered at 2.89, 2.39 and 2.22 eV by room temperature cathodoluminescence.
潘跃武, 胡湛. 一维纳米SiC-CNTs复合结构的生长机制和阴极射线发光[J]. 发光学报, 2010, 31(5): 743. PAN Yue-wu, HU Zhan. Growth Mechanism and Cathodoluminescence of One-dimensional Composite Nanostructure[J]. Chinese Journal of Luminescence, 2010, 31(5): 743.