Large-area electrodeposited WSe2 over graphene electrodes for optoelectronics

Noori, Yasir J. and Jiapei, Zhang and Muhammad Mustafa, Ahmad Nizamuddin and Thomas, Shibin and Greenacre, Victoria and Zhelev, Nikolay and Ali, Syeda Ramsha and Yisong, Han and Shaokai, Song and Hongwei, Zhang and Graham, Aiden and Abdelazim, Nema M. and Ramadan, Sami and Beanland, Richard and Reid, Gillian and Bartlett, Philip N. and De Groot, Kees (2025) Large-area electrodeposited WSe2 over graphene electrodes for optoelectronics. ACS Applied Nano Materials, 8 (21). pp. 10842-10850. ISSN 2574-0970

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Abstract

Integrating graphene and transition metal dichalcogenides (TMDs) into layered material heterostructures brings together the exciting properties that each constituent 2D material offers. However, scaling the growth of graphene-TMD and related heterostructures remains a major challenge. In this work, we demonstrate the use of electrodeposition with a single source precursor (SSP), WSeCl4, to grow few-layer WSe2 using graphene as an electrode. Through characterization via photoluminescence, X-ray photoelectron, and Raman spectroscopy, we show that the electrodeposited WSe2 is stoichiometric and exhibits semiconducting and light-emitting properties. TEM imaging was also performed to show the ordering of the stacked layers of WSe2 over graphene, demonstrating the polycrystalline structure of WSe2. This work paves the way toward utilizing electrodeposition to stack multiple TMDs, including MoS2, WS2, and WSe2 over graphene for electronic and optoelectronic applications.

Item Type:	Article
Uncontrolled Keywords:	Eectrodeposition, 2D materials, TMD, Tungsten diselenide, WSe2, Graphene, Electrode, Heterostructure
Divisions:	Faculty Of Electronics And Computer Technology And Engineering
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	11 Dec 2025 02:33
Last Modified:	11 Dec 2025 02:33
URI:	http://eprints.utem.edu.my/id/eprint/29179
Statistic Details:	View Download Statistic

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