Experimental and theoretical study of the influence of the state of dispersion of graphene on the percolation threshold of conductive graphene/polystyrene nanocomposites

Evgeniy Tkalya; Marcos Ghislandi; Ronald Otten; Mustafa Lotya; Alexander Alekseev; Paul Van Der Schoot; Jonathan Coleman; Gijsbertus De With; Cor Koning

doi:10.1021/am503238z

Experimental and theoretical study of the influence of the state of dispersion of graphene on the percolation threshold of conductive graphene/polystyrene nanocomposites

Evgeniy Tkalya, Marcos Ghislandi, Ronald Otten, Mustafa Lotya, Alexander Alekseev, Paul Van Der Schoot, Jonathan Coleman, Gijsbertus De With, Cor Koning

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

Abstract

The effect of the dispersed state of graphene is studied as a factor influencing the electrical percolation threshold of graphene/polystyrene nanocomposites. We find the percolation threshold of our nanocomposites, prepared with graphene dispersions with different thermodynamic stabilities, degrees of exfoliation, and size polydispersities, to range from 2 to 4.5 wt %. Connectedness percolation theory is applied to calculate percolation thresholds of the corresponding nanocomposites, based on the premise that size polydispersity of graphene platelets in the corresponding solutions must have a strong influence on it. Theory and experimental results agree qualitatively.

Original language	English
Pages (from-to)	15113-15121
Number of pages	9
Journal	ACS Applied Materials and Interfaces
Volume	6
Issue number	17
DOIs	https://doi.org/10.1021/am503238z
Publication status	Published - Sept 10 2014

Keywords

graphene
percolation threshold
polymer nanocomposites

ASJC Scopus subject areas

Materials Science(all)

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10.1021/am503238z

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Tkalya, E., Ghislandi, M., Otten, R., Lotya, M., Alekseev, A., Van Der Schoot, P., Coleman, J., De With, G., & Koning, C. (2014). Experimental and theoretical study of the influence of the state of dispersion of graphene on the percolation threshold of conductive graphene/polystyrene nanocomposites. ACS Applied Materials and Interfaces, 6(17), 15113-15121. https://doi.org/10.1021/am503238z

Experimental and theoretical study of the influence of the state of dispersion of graphene on the percolation threshold of conductive graphene/polystyrene nanocomposites. / Tkalya, Evgeniy; Ghislandi, Marcos; Otten, Ronald et al.
In: ACS Applied Materials and Interfaces, Vol. 6, No. 17, 10.09.2014, p. 15113-15121.

Research output: Contribution to journal › Article › peer-review

Tkalya, E, Ghislandi, M, Otten, R, Lotya, M, Alekseev, A, Van Der Schoot, P, Coleman, J, De With, G & Koning, C 2014, 'Experimental and theoretical study of the influence of the state of dispersion of graphene on the percolation threshold of conductive graphene/polystyrene nanocomposites', ACS Applied Materials and Interfaces, vol. 6, no. 17, pp. 15113-15121. https://doi.org/10.1021/am503238z

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abstract = "The effect of the dispersed state of graphene is studied as a factor influencing the electrical percolation threshold of graphene/polystyrene nanocomposites. We find the percolation threshold of our nanocomposites, prepared with graphene dispersions with different thermodynamic stabilities, degrees of exfoliation, and size polydispersities, to range from 2 to 4.5 wt %. Connectedness percolation theory is applied to calculate percolation thresholds of the corresponding nanocomposites, based on the premise that size polydispersity of graphene platelets in the corresponding solutions must have a strong influence on it. Theory and experimental results agree qualitatively.",

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AU - Lotya, Mustafa

AU - Alekseev, Alexander

AU - Van Der Schoot, Paul

AU - Coleman, Jonathan

AU - De With, Gijsbertus

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AB - The effect of the dispersed state of graphene is studied as a factor influencing the electrical percolation threshold of graphene/polystyrene nanocomposites. We find the percolation threshold of our nanocomposites, prepared with graphene dispersions with different thermodynamic stabilities, degrees of exfoliation, and size polydispersities, to range from 2 to 4.5 wt %. Connectedness percolation theory is applied to calculate percolation thresholds of the corresponding nanocomposites, based on the premise that size polydispersity of graphene platelets in the corresponding solutions must have a strong influence on it. Theory and experimental results agree qualitatively.

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Experimental and theoretical study of the influence of the state of dispersion of graphene on the percolation threshold of conductive graphene/polystyrene nanocomposites

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