Trudeau, Charles, Dion-Bertrand, Laura-Isabelle, Mukherjee, Sankha, Martel, Richard et Cloutier, Sylvain.
2018.
« Electrostatic deposition of large-surface graphene ».
Materials, vol. 11, nº 1.
p. 116.
Compte des citations dans Scopus : 6.
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Cloutier S 2018 16123 Electrostatic deposition of large-surface graphene.pdf - Version publiée Licence d'utilisation : Creative Commons CC BY. Télécharger (5MB) | Prévisualisation |
Résumé
This work describes a method for electrostatic deposition of graphene over a large area using controlled electrostatic exfoliation from a Highly Ordered Pyrolytic Graphite (HOPG) block. Deposition over 130 × 130 µm2 with 96% coverage is achieved, which contrasts with sporadic micro-scale depositions of graphene with little control from previous works on electrostatic deposition. The deposition results are studied by Raman micro-spectroscopy and hyperspectral analysis using large fields of view to allow for the characterization of the whole deposition area. Results confirm that laser pre-patterning of the HOPG block prior to cleaving generates anchor points favoring a more homogeneous and defect-free HOPG surface, yielding larger and more uniform graphene depositions. We also demonstrate that a second patterning of the HOPG block just before exfoliation can yield features with precisely controlled geometries.
| Type de document: | Article publié dans une revue, révisé par les pairs |
|---|---|
| Mots-clés libres: | Fonds d'auteur ÉTS, FAETS |
| Professeur: | Professeur Cloutier, Sylvain G. |
| Affiliation: | Génie électrique |
| Date de dépôt: | 12 janv. 2018 20:10 |
| Dernière modification: | 22 janv. 2020 19:45 |
| URI: | https://espace2.etsmtl.ca/id/eprint/16123 |
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