Noori, Yasir, Thomas, Shibin, Ramadan, Sami, Smith, Danielle E., Greenacre, Victoria, Abdelazim, Nema, Han, Yisong, Beanland, Richard, Hector, Andrew L., Klein, Norbet, Reid, Gillian, Bartlett, Philip N. and De Groot, Kees (2020) Large-area electrodeposition of few-layer MoS2 on graphene for 2D material heterostructures. ACS Applied Materials and Interfaces, 12 (44), 49786-49794. (doi:10.1021/acsami.0c14777).
Abstract
Heterostructures involving two-dimensional (2D) transition metal dichalcogenides and other materials such as graphene have a strong potential to be the fundamental building block of many electronic and optoelectronic applications. The integration and scalable fabrication of such heterostructures are of the essence in unleashing the potential of these materials in new technologies. For the first time, we demonstrate the growth of few-layer MoS2 films on graphene via nonaqueous electrodeposition. Through methods such as scanning and transmission electron microscopy, atomic force microscopy, Raman spectroscopy, energy- and wavelength-dispersive X-ray spectroscopies, and X-ray photoelectron spectroscopy, we show that this deposition method can produce large-area MoS2 films with high quality and uniformity over graphene. We reveal the potential of these heterostructures by measuring the photoinduced current through the film. These results pave the way toward developing the electrodeposition method for the large-scale growth of heterostructures consisting of varying 2D materials for many applications.
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