基于金纳米簇的二维组装

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.