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Characterizing the maximum number of layers in chemically exfoliated graphene

Publications associées (127)

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2D Material-Metal contact resistance measurement

Tom Larsen

Metal/graphene contact resistance is becoming a major limiting factor in the creation of graphene devices. In this report, we will study and refine the whole process flow towards the creation of graphene devices meant for contact resistance measurements. W ...

2017

Probing the Interlayer Exciton Physics in a MoS2/MoSe2/MoS2 van der Waals Heterostructure

Andras Kis, Dumitru Dumcenco, Yen-Cheng Kung, Alessandro Surrente

Stacking atomic monolayers of semiconducting transition metal dichalcogenides (TMDs) has emerged as an effective way to engineer their properties. In principle, the staggered band alignment of TMD heterostructures should result in the formation of interlay ...

American Chemical Society2017

Optospintronics in Graphene via Proximity Coupling

Andras Kis, Oriol López Sánchez, Ahmet Avsar, Dmitrii Unuchek

The observation of micrometer size spin relaxation makes graphene a promising material for applications in spintronics requiring long-distance spin communication. However, spin dependent scatterings at the contact/graphene interfaces affect the spin inject ...

American Chemical Society2017

Some Like It Flat: Decoupled h-BN Monolayer Substrates for Aligned Graphene Growth

Silvan Dino Marcos Roth

On the path to functional graphene electronics, suitable templates for chemical vapor deposition (CVD) growth of high -mobility graphene are of great interest. Among various substrates, hexagonal boron nitride (h-BN) has established itself as one of the mo ...

Amer Chemical Soc2016

Intercalation of graphene on SiC(0001) via ion implantation

Klaus Kern

Electronic devices based on graphene technology are catching on rapidly and the ability to engineer graphene properties at the nanoscale is becoming, more than ever, indispensable. Here, we present a procedure of graphene functionalization on SiC(0001) tha ...

Amer Physical Soc2016

Observation and analysis of the Coulter effect through carbon nanotube and graphene nanopores

Kumar Varoon Agrawal

Carbon nanotubes (CNTs) and graphene are the rolled and flat analogues of graphitic carbon, respectively, with hexagonal crystalline lattices, and show exceptional molecular transport properties. The empirical study of a single isolated nanopore requires, ...

2016

Polymer - Carbon Nanostructures Composites

Maryam Majidian

Synthesis and characterization of polymer-based composites containing carbon nanostructures is the focus of this dissertation. The main polymer which has been used for this research is SU8. The motivation of the work is to overcome the drawbacks of SU8 e.g ...

EPFL2016

Fast diffusion of water nanodroplets on graphene

Gabriel Aeppli, Gabriele Tocci, Ming Ma

Diffusion across surfaces generally involves motion on a vibrating but otherwise stationary substrate. Here, using molecular dynamics, we show that a layered material such as graphene opens up a new mechanism for surface diffusion whereby adsorbates are ca ...

Nature Publishing Group2016

Selective Functionalization of Graphene Peripheries by using Bipolar Electrochemistry

Klaus Kern, Kannan Balasubramanian

We present a contactless strategy based on bipolar electrochemistry for the local chemical modification of monolayer graphene sheets supported on a substrate. Specifically, peripheral graphene regions are directly modified by copper nanoparticles, the char ...

Wiley-V C H Verlag Gmbh2016

A primary battery-on-a-chip using monolayer graphene

Klaus Kern, Kannan Balasubramanian

We present here a bottom-up approach for realizing on-chip on-demand batteries starting out with chemical vapor deposition-grown graphene. Single graphene monolayers contacted by electrode lines on a silicon chip serve as electrodes. The anode and cathode ...

Iop Publishing Ltd2016