标题： 超薄超光滑的金膜在单层MoS2上 显示英文标题

标题： Ultrathin and ultrasmooth gold films on monolayer MoS2

摘要： 亚10纳米连续金属薄膜是柔性透明纳米光子学和光电子学应用的有前途的候选材料。 在本文中，我们证明单层MoS2是沉积仅3-4纳米厚的连续导电金膜的有前景的粘附层。 通过光谱椭偏仪在宽波长范围（300-3300纳米）内研究了在化学气相沉积生长的二维MoS2上沉积的超薄金膜的光学特性。 结果表明，由于细晶结构和少量孔隙的存在，超薄薄膜中的光学损耗随着厚度的减小而增加，然而它们在3-4纳米的厚度下仍表现出金属特性。 原子尺度的MoS2界面可以转移到任何基底上，从而为创建超表面和具有原子薄金属层的新类型范德华异质结构开辟了新的机会。 显示英文摘要

摘要： Sub-10 nm continuous metal films are promising candidates for flexible and transparent nanophotonics and optoelectronics applications. In this Letter, we demonstrate that monolayer MoS2 is a perspective adhesion layer for the deposition of continuous conductive gold films with a thickness of only 3-4 nm. Optical properties of continuous ultrathin gold films deposited on two-dimensional MoS2 grown by chemical vapor deposition are investigated by spectroscopic ellipsometry over a wide wavelength range (300-3300 nm). Results show that optical losses in ultrathin films increase with decreasing thickness due to the fine-grained structure and the presence of a small number of voids, however, they exhibit metallic properties down to a thickness of 3-4 nm. The atomic-scale MoS2 interfaces can be transferred to any substrate and thus open up new opportunities for the creation of metasurfaces and a new type of van der Waals heterostructures with atomically thin metal layers.