Anuar, Nur Afira binti and Nor, Nurul Hidayah Mohamad and Awang, Rozidawati binti and Nakajima, Hideki and Tunmee, Sarayut and Tripathi, Manoj and Dalton, Alan and Goh, Boon Tong (2021) Low-temperature growth of graphene nanoplatelets by hot-wire chemical vapour deposition. Surface and Coatings Technology, 411. ISSN 0257-8972, DOI https://doi.org/10.1016/j.surfcoat.2021.126995.
Full text not available from this repository.Abstract
With the increasing demand for large-area graphene due to its versatility, there is an imminent requirement for scalable, low-temperature, and high yield growth procedures. In this study, the fabrication of large-area graphene nanoplatelets directly grown on tungsten (W) nanoparticles coated c-Si and quartz substrates by hot-wire chemical vapour deposition was demonstrated. A large area of single and bilayer graphene grown over W adatoms via controlled argon (Ar) plasma treatment varied from 0.5 to 10 min. The finest quality of continuous graphene layer up to an area of 2.56 x 10(4) mu m(2) was prepared at the optimised condition of 1 min, and verified through transmission electron microscopy in conjunction with energy dispersive X-ray, atomic force microscopy, and Raman spectroscopy. The prepared thin film of the carbon layer has excellent optical transparency (> 70%) and lower sheet resistance up to 718.3 Omega/sq. A detailed growth mechanism is proposed for the nucleation of graphene nanoplatelets under the influence of Ar plasma treatment on W nanoparticles.
| Item Type: | Article |
|---|---|
| Funders: | Research University Faculty Programme (University of Malaya) [Grant No: GPF034B-2018], Newton Advanced Fellowship [Grant No: IF003-2017@NA16010 & RK006-2019], University of Sussex strategic development fund |
| Uncontrolled Keywords: | HWCVD; Graphene; Nanoplatelets; Raman mapping; Tungsten nanoparticles |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics |
| Divisions: | Faculty of Science |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 22 Jun 2022 04:47 |
| Last Modified: | 22 Jun 2022 04:47 |
| URI: | http://eprints.um.edu.my/id/eprint/34026 |
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