Mohamad Nor, Nurul Hidayah and Anuar, Nur Afira and Talik, Noor Azrina and Wan Abdullah, Wan Ahmad Tajuddin and Kittimanapun, Kritsada and Nakajima, Hideki and Chanlek, Narong and Yahya, Mohd Fakharul Zaman Raja and Goh, Boon Tong (2023) Effects of high-energy electron beam irradiation on the structure, composition and morphological properties of graphene nanoplatelet films. Sains Malaysiana, 52 (10). pp. 2955-2970. ISSN 0126-6039, DOI https://doi.org/10.17576/jsm-2023-5210-17.
Full text not available from this repository.Abstract
This work demonstrated the effects of 1.2 GeV high-energy electron beam irradiation on a few-layers of graphene (FLG) and multi-layer graphene (MLG) films grown via an in -house hot wire chemical vapour deposition (HWCVD) system. The FLG and MLG films were grown on highly doped n-type c -Si (100) substrates which were pre-treated using argon plasma (50 W) for 1 min and 10 min, respectively. The as-prepared samples were then irradiated using a 1.2 GeV high-energy electron beam with a dosage of 1.2 x 109 e-/cm2 at atmospheric and room temperature ambient conditions. The effects of the irradiation-mediated defects on the carbon lattice structure of both graphene samples were validated from the decreased sp2 C=C carbon content, and the increase in the adventitious carbon contamination C -O-C content. Raman results showed an elevation of the ID/IG ratio and blue-shift of the 2D and G band peaks for both the irradiated samples, which validated the mediated defects due to the dislocation of carbon atoms in the graphene sheets. The blue-shifted of 2D and G peaks were much more significant in the MLG than FLG which may indicate a better self-reconstructing property for the MLG atomic network, compared to the FLG. The stability of the films against high-energy electron beam irradiation was validated by their conductivity and surface topography. In conclusion, HWCVD grown graphene nanoplatelet films have high potential for graphene-based high-energy charged particle detectors.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Higher Education Fundamental Research Grant Scheme FRGS/1/2020/STG07/UM/02/8, Ministry of Higher Education & Scientific Research (MHESR), University Malaya (UM) |
| Uncontrolled Keywords: | Graphene; High-energy electron beam; HWCVD; Nanoplatelets; Radiation tolerance |
| Subjects: | Q Science > Q Science (General) |
| Divisions: | Faculty of Science > Department of Physics |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 01 Nov 2025 14:22 |
| Last Modified: | 01 Nov 2025 14:22 |
| URI: | http://eprints.um.edu.my/id/eprint/48623 |
Actions (login required)
 |
View Item |
