Surface preparation of porous Si-graphene nanocomposites for heteroepitaxy

Surface morphology of Cr:Ga2Se3 heteroepitaxy on Si(001)

E. N. Yitamben, ∗ T. C. Lovejoy, D. F. Paul, J. B. Callaghan, F. S. Ohuchi, and M. A. Olmstead Department of Physics, and Center for Nanotechnology (CNT), University of Washington, Box 351560, Seattle, Washington 98195, USA Physical Electronics, Chanhassen, Minnesota 55317, USA Department of Materials Science and Engineering, and Center for Nanotechnology (CNT), University of Washington, Box 35...

Graphene/Semiconductor Nanocomposites: Preparation and Application for Photocatalytic Hydrogen Evolution

Dichlorobenzene: an effective solvent for epoxy/graphene nanocomposites preparation

It is generally recognized that dimethylformamide (DMF) and ethanol are good media to uniformly disperse graphene, and therefore have been used widely in the preparation of epoxy/graphene nanocomposites. However, as a solvent to disperse graphene, dichlorobenzene (DCB) has not been fully realized by the polymer community. Owing to high values of the dispersion component (δd) of the Hildebrand s...

Preparation and Characterization of Polypropylene/functionalized Graphene Nanocomposites

1. General Introduction Conductive polymer composite materials deserve interest in several application fields [1]. A composite consisting of conductive fillers and an insulating polymer becomes electrically conductive as the filler content exceeds a certain critical value, which is generally attributed to percolation phenomenon. These percolation threshold values for the particular polymer comp...

Preparation and Mechanical Properties of Graphene Oxide: Cement Nanocomposites

We investigate the performance of graphene oxide (GO) in improving mechanical properties of cement composites. A polycarboxylate superplasticizer was used to improve the dispersion of GO flakes in the cement. The mechanical strength of graphene-cement nanocomposites containing 0.1-2 wt% GO and 0.5 wt% superplasticizer was measured and compared with that of cement prepared without GO. We found t...