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Sequential Growth of Vertical Transition-Metal Dichalcogenide Heterostructures on Rollable Aluminum Foil

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Title
Sequential Growth of Vertical Transition-Metal Dichalcogenide Heterostructures on Rollable Aluminum Foil
Author(s)
Joseph Kojo Baidoo; Soo Ho Choi; Agyapong-Fordjour, Frederick Osei-Tutu; Stephen Boandoh; Seok Joon Yun; Adofo, Laud Anim; Ben-Smith, Andrew; Kim, Yong In; Jin, Jeong Won; Jung, Min-Hyoung; Jeong, Hu Young; Young-Min Kim; Young Hee Lee; Kim, Soo Min; Ki Kang Kim
Publication Date
2022-06
Journal
ACS Nano, v.16, no.6, pp.8851 - 8859
Publisher
American Chemical Society
Abstract
Vertical van der Waals heterostructures (vdWhs), which are made by layer-by-layer stacking of two-dimensional (2D) materials, offer great opportunities for the development of extraordinary physics and devices such as topological superconductivity, robust quantum Hall phenomenon, electron-hole pair condensation, Coulomb drag, and tunneling devices. However, the size of vdWhs is still limited to the order of a few micrometers, which restricts the large-scale roll-to-roll processes for industrial applications. Herein, we report the sequential growth of a 14 in. vertical vdWhs on a rollable Al foil via chemical vapor deposition. By supplying chalcogen precursors to liquid transition-metal precursor-coated Al foils, we grew a wide range of individual 2D transition-metal dichalcogenide (TMD) films, including MoS2>, VS2>, ReS2>, WS2, SnS2>, WSe2, and vanadium-doped MoS2. Additionally, by repeating the growth process, we successfully achieved the layer-by-layer growth of ReS2>/MoS2> and SnS2>/ReS2>/MoS2> vdWhs. The chemically inert Al native oxide layer inhibits the diffusion of chalcogen and metal atoms into Al foils, allowing for the growth of diverse TMDs and their vdWhs. The conductive Al substrate enables the effective use of vdWhs/Al as a hydrogen evolution reaction electrocatalyst with a transfer-free process. This work provides a robust route for the commercialization of 2D TMDs and their vdWhs at a low cost.
URI
https://pr.ibs.re.kr/handle/8788114/12161
DOI
10.1021/acsnano.1c10233
ISSN
1936-0851
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
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