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Large area, few-layer graphene films on arbitrary substrates by chemical vapor deposition.
The transparency, conductivity, and ambipolar transfer characteristics of the films suggest their potential as another materials candidate for electronics and opto-electronic applications. Expand
Antibacterial activity of graphite, graphite oxide, graphene oxide, and reduced graphene oxide: membrane and oxidative stress.
Health and environmental impacts of graphene-based materials need to be thoroughly evaluated before their potential applications. Graphene has strong cytotoxicity toward bacteria. To betterExpand
Role of kinetic factors in chemical vapor deposition synthesis of uniform large area graphene using copper catalyst.
Interestingly, graphene syntheses using a Cu catalyst in APCVD processes at higher methane concentrations revealed that the growth is not self-limiting, which is in contrast to previous observations for the LPCVD case. Expand
Graphene as a sub-nanometer trans-electrode membrane
It is shown that when immersed in an ionic solution, a layer of graphene becomes a new electrochemical structure that is called a trans-electrode, which is an ideal substrate for very high resolution, high throughput nanopore-based single-molecule detectors. Expand
Observation of Van Hove singularities in twisted graphene layers
When a Van Hove singularity exists near the Fermi energy of a solid’s density of states, it can cause a variety of exotic phenomena to emerge. Scanning tunnelling microscope measurements indicateExpand
Carbon-nanotube-embedded hydrogel sheets for engineering cardiac constructs and bioactuators.
Results indicate that the electrically conductive and nanofibrous networks formed by CNTs within a porous gelatin framework are the key characteristics of CNT-GelMA leading to improved cardiac cell adhesion, organization, and cell-cell coupling. Expand
Can graphene be used as a substrate for Raman enhancement?
It is observed that the intensities of the Raman signals on monolayer graphene are much stronger than on a SiO(2)/Si substrate, indicating a clear Raman enhancement effect on the surface of monolayers graphene. Expand
Synthesis of monolayer hexagonal boron nitride on Cu foil using chemical vapor deposition.
The results suggest that the growth here occurs via surface-mediated growth, which is similar to graphene growth on Cu under low pressure, which are particularly attractive for use as atomic membranes or dielectric layers/substrates for graphene devices. Expand
Intrinsic structural defects in monolayer molybdenum disulfide.
The atomic scale study of structural defects presented here brings new opportunities to tailor the properties of MoS2 via controlled synthesis and defect engineering. Expand
Electrically tunable metasurface perfect absorbers for ultrathin mid-infrared optical modulators.
It is shown that a widely tunable metasurface composed of optical antennas on graphene can be incorporated into a subwavelength-thick optical cavity to create an electrically tunable perfect absorber. Expand