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- Title
Ultrathin and Ultrasmooth Gold Films on Monolayer MoS<sub>2</sub>.
- Authors
Yakubovsky, Dmitry I.; Stebunov, Yury V.; Kirtaev, Roman V.; Ermolaev, Georgy A.; Mironov, Mikhail S.; Novikov, Sergey M.; Arsenin, Aleksey V.; Volkov, Valentyn S.
- Abstract
Sub‐10 nm continuous metal films are promising candidates for flexible and transparent nanophotonics and optoelectronic applications. In this article, it is demonstrated 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 2D 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.
- Subjects
GOLD films; THIN films; METALLIC films; MONOMOLECULAR films; GRAIN size; CHEMICAL vapor deposition; OPTICAL losses
- Publication
Advanced Materials Interfaces, 2019, Vol 6, Issue 13, pN.PAG
- ISSN
2196-7350
- Publication type
Article
- DOI
10.1002/admi.201900196