Showing papers by "Yi Huang published in 2010"
TL;DR: In this article, an arc-discharge method using a buffer gas containing carbon dioxide has been developed for the efficient and large-scale synthesis of few-layered graphene, well-dispersed in organic solvents such as N,N-dimethylformamide (DMF) and 1,2-dichlorobenzene (o-DCB).
Abstract: An arc-discharge method using a buffer gas containing carbon dioxide has been developed for the efficient and large-scale synthesis of few-layered graphene. The resulting samples of few-layered graphene, well-dispersed in organic solvents such as N,N-dimethylformamide (DMF) and 1,2-dichlorobenzene (o-DCB), were examined by transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectroscopy, atomic force microscopy (AFM), and thermal gravimetric analysis (TGA). The electrical conductivity and transparency of flexible films prepared using a direct solution process have also been studied.
268 citations
TL;DR: In this paper, the authors report the fabrication of magnetic, electrically conducting, and flexible paper composed of graphene and nanoscale Fe3O4 particles made using a simple yet versatile solution-processed approach.
Abstract: The emerging field of free-standing and flexible paperlike materials based on graphene sheets has become the focus of considerable research in recent years because of the scientific and technological significance of these materials. In particular, multifunctional flexible graphene-based films or papers are in high demand for various applications. Herein, we report the fabrication of magnetic, electrically conducting, and flexible paper composed of graphene and nanoscale Fe3O4 particles made using a simple yet versatile solution-processed approach. The conductive, magnetic, and mechanical properties of these free-standing hybrid papers with different loadings of nanoscale Fe3O4 particles were investigated. In addition to the excellent electrical conductivity and mechanical strength, the obtained flexible graphene/Fe3O4 hybrid papers also show superparamagnetism, which can be tuned easily through modulation of the loading of Fe3O4 nanoparticles. Combining all of these outstanding properties, we have fabrica...
177 citations
TL;DR: In this article, the synthesis of few-layered graphene sheets with controlled number of layers (3-4) on a large scale was developed using chemical exfoliation by simply controlling the oxidation and exfolation procedure.
155 citations
TL;DR: In this article, a large area, smooth, transparent and conductive graphene films were produced by a spin-coating method using graphene solutions and a bulk heterojunction polymer organic photovoltaic devices using these pure graphene films as a transparent anode were fabricated and studied.
109 citations
TL;DR: Graphene could be the ideal material for fabricating the highly demanded all-carbon and flexible devices and electronics using the simple and efficient roll-to-roll printing process when combined with maskless direct data writing.
Abstract: Owing to its extraordinary electronic property, chemical stability, and unique two-dimensional nanostructure, graphene is being considered as an ideal material for the highly expected all-carbon-based micro/nanoscale electronics. Herein, we present a simple yet versatile approach to constructing all-carbon micro/nanoelectronics using solution-processing graphene films directly. From these graphene films, various graphene-based microcosmic patterns and structures have been fabricated using maskless computer-controlled laser cutting. Furthermore, a complete system involving a prototype of a flexible write-once-read-many-times memory card and a fast data-reading system has been demonstrated, with infinite data retention time and high reliability. These results indicate that graphene could be the ideal material for fabricating the highly demanded all-carbon and flexible devices and electronics using the simple and efficient roll-to-roll printing process when combined with maskless direct data writing.
54 citations
TL;DR: The Z-scan measurement shows a much enhanced optical limiting performance compared with GO and is comparable with the benchmark material-C60, which may be attributed to the enhanced nonlinear scattering effect introduced by the Fe3O4 nanoparticles.
Abstract: A graphene oxide-Fe3O4 (GO-Fe3O4) hybrid material was prepared by a simple chemical precipitation method. The formation of this hybrid material was verified by Fourier transform infrared spectroscopy, high resolution transmission electron microscopy and X-ray powder diffraction. The optical limiting performance of this hybrid material was studied using the Z-scan measurement, which shows a much enhanced optical limiting performance compared with GO and is comparable with the benchmark material-C60. The mechanism responsible for this enhancement may be attributed to the enhanced nonlinear scattering effect introduced by the Fe3O4 nanoparticles.
29 citations
TL;DR: A novel molecular wire comprising an isolated straight polystyrene (PS) chain encapsulated by a single-walled carbon nantube (SWNT) was prepared and the interaction of the PS chain with the SWNTs was systematically characterized using transmission electron microscopy (TEM), Fourier transform infrared (FTIR), nuclear magnetic resonance (NMR) spectroscopy, and RamanSpectroscopy.
Abstract: In this paper, a novel molecular wire comprising an isolated straight polystyrene (PS) chain encapsulated by a single-walled carbon nantube (SWNT) was prepared. The interaction of the PS chain with the SWNTs was systematically characterized using transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, and Raman spectroscopy.
4 citations