Permanent water swelling effect in low temperature thermally reduced graphene oxide

S. Papamatthaiou; D. P. Argyropoulos; A. Masurkar; M. R. Cavallari; F. Farmakis; I. Kymissis; N. Georgoulas

doi:10.1063/1.4989681

Permanent water swelling effect in low temperature thermally reduced graphene oxide

S. Papamatthaiou, D. P. Argyropoulos, A. Masurkar, M. R. Cavallari, F. Farmakis, I. Kymissis, N. Georgoulas

Department of Electronic & Electrical Engineering

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

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Abstract

We demonstrate permanent water trapping in reduced graphene oxide after high relative humidity exposure. For this purpose, we grew graphene oxide films via spin-coating on glass substrates followed by thermal reduction. The electrical resistance of the planar device was then measured. We observed that resistance is significantly increased after water vapor exposure and remains stable even after 250 days in ambient conditions. Various techniques were applied to desorb the water and decrease (recover) the material's resistance, but it was achieved only with low temperature thermal annealing (180 °C) under forming gas (H₂/N₂ mixture). The permanent effect of water absorption was also detected by x-ray photoelectron spectroscopy.

Original language	English
Article number	252106
Journal	Applied Physics Letters
Volume	110
Issue number	25
Early online date	19 Jun 2017
DOIs	https://doi.org/10.1063/1.4989681
Publication status	Published - 2017

Keywords

humidity
reduced graphene oxide
adsorption
swelling
permanent
water

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4989681

accepted Manuscript-Permanent water swelling effect in low temperature thermally reduced graphene oxide
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Papamatthaiou, S, Argyropoulos, DP, Masurkar, A, Cavallari, MR, Farmakis, F, Kymissis, I & Georgoulas, N 2017, 'Permanent water swelling effect in low temperature thermally reduced graphene oxide' Applied Physics Letters, vol 110, no. 25, 252106. and may be found at: https://aip.scitation.org/doi/10.1063/1.4989681
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Cite this

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AU - Argyropoulos, D. P.

AU - Masurkar, A.

AU - Cavallari, M. R.

AU - Farmakis, F.

AU - Kymissis, I.

AU - Georgoulas, N.

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KW - humidity

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KW - water

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Permanent water swelling effect in low temperature thermally reduced graphene oxide

Abstract

Keywords

ASJC Scopus subject areas

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