基于金纳米簇的二维组装
首发时间:2015-02-11
摘要:在可互溶二元高沸点溶剂中,成功制备了金纳米簇的二维组装结构。通过紫外可见近红外分光光度计(UV-vis)、荧光光谱仪(PL)、气相色谱-质谱仪(GC-MS)透射电子显微镜(TEM)以及X射线粉末衍射仪(XRD)等对金纳米簇的光学性质、化学组成和二维组装体的形貌、结构进行了表征,得出金纳米簇由15个正十二硫醇配体包覆15个金原子构成,并进一步组装成为二维材料。通过对组装过程的追踪,研究了温度和二元溶剂比例对组装过程的影响,并在对实验条件精确控制下,得到形貌均一的六边形二维组装体。
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The Two-dimension Assembly of Au Nanoclusters
Abstract:In this paper, self-assembly of Au nanoclusters into two-dimension(2D) materials in two misible high-boiling-point solvents has been achieved. The optical properties, chemical composition of Au nanoclusters and the morphology, structure of 2D assemblies were measured by UV-VIS-IR spectrophotometer(UV-vis), Fluorescence spectroscopy(PL), Gas chromatography-mass(GC-MS), Transmission electron microscopy(TEM), X-ray powder diffraction(XRD) and so on. MS data proved that one Au nanoclusters consiste of fifteen Au atom as core and fifteen 1-Dodecanethiol as ligand. Then the paper discussed the influence of temperature and ratio of LP-to-BE through observing the assembly process. At last, we get homogeneous hexagon 2D assembly with the accurate control of experiment conditon.
Keywords: 2D Materials Au Nanoclusters Assembly
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