Atomically resolved imaging of highly ordered alternating fluorinated graphene.

Heat Induced Dynamics of Gold Nanoparticles on Atomically Clean Graphene 103 Heat Induced Dynamics of Gold Nanoparticles on Atomically Clean Graphene

We designed a graphene based TEM sample carrier to enable atomically resolved studies of the heat-induced evolution of deposits on graphene. By in-situ application of electric current to a freestanding sheet of graphene, we obtain local temperatures exceeding 1000K. We investigated various heat induced phenomena of gold particles on an atomically clean graphene surface. Initially, the gold nano...

Molecularly and atomically thin semiconductor and carbon nanoshells

Approaches to the formation of molecularly and atomically thin solid shells based on the transformation of thin planar films into more functional 3D precise shells are outlined. In the overview part of the present work several examples are given illustrating the possibility to obtain in bent films new effects never observed in planar films and to fabricate new nanomaterials from highly – ordere...

Highly hydrophilic and insulating fluorinated reduced graphene oxide.

A facile method for the synthesis of highly fluorinated reduced graphene oxide from graphene oxide using BF3-OEt2 solution and alkylthiol/alkylamine on the Gram scale has been described using a detailed mechanism. The maximum fluorination was as high as 38 wt% and the fluorinated reduced graphene oxide produced has great wettability and high insulating properties.

Atomically resolved structural determination of graphene and its point defects via extrapolation assisted phase retrieval

Direct imaging of graphene edges: atomic structure and electronic scattering.

We report an atomically resolved scanning tunneling microscopy investigation of the edges of graphene grains synthesized on Cu foils by chemical vapor deposition. Most of the edges are macroscopically parallel to the zigzag directions of graphene lattice. These edges have microscopic roughness that is found to also follow zigzag directions at atomic scale, displaying many ∼120° turns. A promine...