Article citationsMore>>
Watcharotone, S., Dikin, D.A., Stankovich, S., Piner, R., Jung, I., Dommett, G.H.B., Evmenenko, G., Wu, S.E., Chen, S.F., Liu, C.P., Nguyen, S.B.T. and Ruoff, R.S. (2007) Graphene-Silica Composite Thin Films as Transparent Conductors. Nano Letters, 7, 1888-1892.
http://dx.doi.org/10.1021/nl070477+
has been cited by the following article:
-
TITLE:
A Two-Step Method for the Preparation of Highly Conductive Graphene Film and Its Gas-Sensing Property
AUTHORS:
Tran Van Khai, Tran Dai Lam, Le Van Thu, Hyoun Woo Kim
KEYWORDS:
Graphene, Graphene Oxide, Graphene-Film, Thermal Reduction
JOURNAL NAME:
Materials Sciences and Applications,
Vol.6 No.11,
November
18,
2015
ABSTRACT: In this research, a highly conductive graphene film was synthesized through the chemical reduction of graphene oxide (RGO) nanosheets followed by thermal treatment at 1100℃ (RGO-1100℃) under H2 ambient. The as-prepared graphene films were characterized by using X-ray photoelectron spectroscopy, fourier transform infrared spectroscopy, X-ray diffractions, raman spectroscopy, transmission electron microscopy, scanning electron microscopy, atomic force microscopy and by electrical conductivity measurements. The results showed that the thermal treatment efficiently removed residual oxygen-containing functional groups on the surface of the RGO sheets and simultaneously restored the sp2 carbon networks in the graphene sheets. As a result, the electrical conductivity of RGO-1100℃ (~210 S/cm) film was greatly improved compared with that of RGO (~24 S/cm) and graphene oxide (4.2 × 10–4 S/m) films. In addition, the NO2 gas sensing characteristics of the as-prepared RGO films were studied. The results indicated that RGO films were highly responsive to NO2 at temperature of 200℃.