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Preparation of pristine graphene sheets and large-area/ultrathin graphene films for high conducting and transparent applications

journal contribution
posted on 2016-05-31, 14:07 authored by Yue Lin, Jie Jin, Olga E. Kusmartseva, Mo Song
An effective and scalable exfoliation route has been developed to prepare high quality pristine graphene sheets. A remarkable yield of 55 wt % was achieved at a high solvent concentration of 20 mg/mL, with the application of only 1 h ultrasonication in total. The exfoliation process was achieved by synergistic effect of intercalation, self-assemblage, and further expansion. The successful exfoliation was proved by means of X-ray diffraction (XRD) patterns, Raman spectra, transmission electron microscopy (TEM), and scanning electron microscopy (SEM). Furthermore, preparation of large-area and ultrathin pristine graphene films were demonstrated by a facile, rapid, and scalable electrophoretic deposition approach. The pristine graphene sheets which are extremely sensitive to the applied electric field were arrayed in strict order to form the high-quality graphene films. The resultant graphene films exhibit a high electrical conductivity of ∼1 × 105 S/m. Raman spectroscopy analysis reflected bilayer morphology of the graphene film. The simple and rapid processing route and the high transparency and conductivity of the graphene films suggest their potential applications in electrical and optical fields.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Materials

Published in

JOURNAL OF PHYSICAL CHEMISTRY C

Volume

117

Issue

33

Pages

17237 - 17244 (8)

Citation

LIN, Y. ... et al, 2013. Preparation of pristine graphene sheets and large-area/ultrathin graphene films for high conducting and transparent applications. Journal of Physical Chemistry C, 117 (33), pp. 17237 - 17244.

Publisher

© American Chemical Society

Version

  • VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2013

Notes

This article is closed access.

ISSN

1932-7447

Language

  • en

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