Electrostatic Deposition of Large-Surface Graphene
AbstractThis 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. View Full-Text
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Trudeau, C.; Dion-Bertrand, L.-I.; Mukherjee, S.; Martel, R.; Cloutier, S.G. Electrostatic Deposition of Large-Surface Graphene. Materials 2018, 11, 116.
Trudeau C, Dion-Bertrand L-I, Mukherjee S, Martel R, Cloutier SG. Electrostatic Deposition of Large-Surface Graphene. Materials. 2018; 11(1):116.Chicago/Turabian Style
Trudeau, Charles; Dion-Bertrand, Laura-Isabelle; Mukherjee, Sankha; Martel, Richard; Cloutier, Sylvain G. 2018. "Electrostatic Deposition of Large-Surface Graphene." Materials 11, no. 1: 116.
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