155 citations · 323 across the 9 of their papers we have counts for
9 papers
Detection of ultra-low concentration NO2 in complex environment using epitaxial graphene sensors
Christos Melios, Vishal Panchal, Kieran Edmonds +3
We demonstrate proof-of-concept graphene sensors for environmental monitoring of ultra-low concentration NO2 in complex environments. Robust detection in a wide range of NO2 concen…
Wide-Band Nano-Imaging of Plasmon Dispersion and Hotspots in Quasi-Free-Standing Epitaxial Graphene
William S. Hart, Vishal Panchal, Christos Melios +3
We report observation of graphene plasmon interference fringes across a wide spectral range using a scattering scanning near-field optical microscope (s-SNOM) that employs a widely…
Unique excitonic effects in tungsten disulphide monolayers on two-layer graphene
Cristina E. Giusca, Ivan Rungger, Vishal Panchal +8
Light emission in atomically thin heterostructures is known to depend on the type of materials, number and stacking sequence of the constituent layers. Here we show that the thickn…
Water on graphene: Review of recent progress
Christos Melios, Cristina E. Giusca, Vishal Panchal +1
The sensitivity of graphene to the surrounding environment is given by its π electrons, which are directly exposed to molecules in the ambient. The high sensitivity of graphene to…
Tuning epitaxial graphene sensitivity to water by hydrogen intercalation
Christos Melios, Michael Winters, Wlodek Strupinski +6
The effects of humidity on the electronic properties of quasi-free standing one layer graphene (QFS 1LG) are investigated via simultaneous magneto-transport in the van der Pauw geo…
Surface and interface structure of quasi-free standing graphene on SiC
Christos Melios, Steve Spencer, Alex Shard +3
We perform local nanoscale studies of the surface and interface structure of hydrogen intercalated graphene on 4H-SiC(1000). In particular, we show that intercalation of the interf…