MoS2/Epitaxial graphene layered electrodes for solid-state supercapacitors

Amjadipour, Mojtaba; Bradford, Jonathan; Zebardastan, Negar; Motta, Nunzio; Iacopi, Francesca

Abstract

The potential of transition metal dichalcogenides such as MoS2 for energy storage has been significantly limited so far by the lack of conductivity and structural stability. Employing highly conductive, graphitic materials in combination with transition metal dichalcogenides can address this gap. Here, we explore the use of a layered electrode structure for solid-state supercapacitors, made of MoS2 and epitaxial graphene (EG) on cubic silicon carbide for on-silicon energy storage. We show that the energy storage of the solid-state supercapacitors can be significantly increased by creating layered MoS2/graphene electrodes, yielding a substantial improvement as compared to electrodes using either EG or MoS2 alone. We conclude that the conductivity of EG and the growth morphology of MoS2 on graphene play an enabling role in the successful use of transition metal dichalcogenides for on-chip energy storage.

Citation

Amjadipour, M., Bradford, J., Zebardastan, N., Motta, N., & Iacopi, F. (2021). MoS2/Epitaxial graphene layered electrodes for solid-state supercapacitors. Nanotechnology, 32(19), Article 195401. https://doi.org/10.1088/1361-6528/abe1f1

• Journal Article Type: Article
• Acceptance Date: Feb 1, 2021
• Online Publication Date: Feb 15, 2021
• Publication Date: May 7, 2021
• Deposit Date: Jun 18, 2021
• Publicly Available Date: Feb 16, 2022
• Journal: Nanotechnology
• Print ISSN: 0957-4484
• Electronic ISSN: 1361-6528
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 32
• Issue: 19
• Article Number: 195401
• DOI: https://doi.org/10.1088/1361-6528/abe1f1
• Keywords: Mechanical Engineering; Electrical and Electronic Engineering; General Materials Science; Mechanics of Materials; Bioengineering; General Chemistry
• Public URL: https://nottingham-repository.worktribe.com/output/5690904
• Publisher URL: https://iopscience.iop.org/article/10.1088/1361-6528/abe1f1
• Additional Information: Article Title: MoS2/Epitaxial graphene layered electrodes for solid-state supercapacitors; Journal Title: Nanotechnology; Article Type: paper; Copyright Information: © 2021 IOP Publishing Ltd; Date Received: 2020-10-13; Date Accepted: 2021-02-01; Online publication date: 2021-02-15