Growth of nitrogenated fullerene-like carbon on Ni islands by ion beam sputtering
Growth of nitrogenated fullerene-like carbon on Ni islands by ion beam sputtering
复制标题
DOI：
10.1016/j.carbon.2007.07.016
复制
发表时间：
2007-11
期刊：
影响因子：
10.9
通讯作者：
P. Paredez;M.E.H. Maia da Costa;L. Zagonel;C. Ribeiro;F. Alvarez
中科院分区：
文献类型：
--
作者：
P. Paredez;M.E.H. Maia da Costa;L. Zagonel;C. Ribeiro;F. Alvarez
报道了在高真空室中用离子束溅射方法制备的富勒烯类氮碳材料的合成和性能。样品是通过依次沉积氮化钛薄膜、纳米镍颗粒和碳在硅衬底上生长的。通过在氮气和氦氮气氛中溅射碳靶制备了碳纳米结构样品。报道了惰性气体对纳米结构形成的影响。在连接到沉积系统的超高真空室中进行的X射线光电子能谱显示，覆盖在镍颗粒上的碳层中含有氮。原子力显微镜显示出圆顶状的结构。拉曼光谱和高分辨率电子显微镜显示覆盖在镍颗粒上的多壁石墨烯。报道了这些结构的场发射特性。
The synthesis and properties of fullerene-like carbon materials containing nitrogen deposited by ion beam sputtering in a high-vacuum chamber are reported. The samples are grown on Si substrate by sequentially depositing a titanium nitride thin film, nanometric nickel particles, and carbon. The carbon nanostructured samples were prepared by sputtering a carbon target in nitrogen and helium–nitrogen atmospheres. The effect of the noble gas on the nanostructure formation is reported. X-ray photoelectron spectroscopy performed in an ultra high-vacuum chamber, attached to the deposition system, reveals the incorporation of nitrogen in the carbon layer coating the nickel particles. Atomic force microscopy shows dome-like shaped structures. Raman spectroscopy and high-resolution transmission electron microscopy show multi-wall graphenes covering the nickel particles. The field emission properties of the structures are reported.