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arXiv · 2210.07627

The Electrical Property of Large Few Layer Graphene Flakes Obtained by Microwaves Assisted Exfoliation of Expanded Graphite

Azhar A Pirzado·Guillaume Dalmas·Lam Nguyen-Dinh·Ivan Komissarov·Francois Le Normand·Izabela Janowska
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Abstract

Few layer graphene (FLG) was synthesized by $\mu$-wave assisted exfoliation of expanded graphite in toluene with an overall yield from c.a. 7% to 20%. A significant difference in the absorption of $\mu$-waves by the expanded graphite and toluene allowed a rapid heating of the medium. The number of FLG sheets varies from 3 to 12, while the lateral size of the sheets exceeds few $\mu$ms. The obtained FLG exhibits very low resistance with average value of 1.6 k$\Omega$ (500 $\Omega$ minimum) which is comparable to that of high quality graphenes synthesized by CVD methods, and lower than numbers of exfoliated graphenes.

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Azhar A Pirzado, Guillaume Dalmas, Lam Nguyen-Dinh, Ivan Komissarov, Francois Le Normand, Izabela Janowska. 2022-10-14. The Electrical Property of Large Few Layer Graphene Flakes Obtained by Microwaves Assisted Exfoliation of Expanded Graphite. https://arxiv.org/abs/2210.07627

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