Sentences with phrase «graphene ribbons»

This can be done in several methods - for example using graphene ribbons.

Abstract: A team including physicists from the University of Basel has succeeded in using atomic force microscopy to clearly obtain images of individual impurity atoms in graphene ribbons.

Measuring the strength of the atoms Scientists from the team led by Professor Ernst Meyer from the Swiss Nanoscience Institute and the University of Basel's Department of Physics examined these graphene ribbons using atomic force microscopy (AFM).

Targeted incorporation In a collaboration between scientists from the University of Basel and the National Institute for Material Science in Tsukuba in Japan, Kanazawa University and Kwansei Gakuin University in Japan, and Aalto University in Finland, the researchers specifically created and examined graphene ribbons containing impurity atoms.

A team including physicists from the University of Basel has succeeded in using atomic force microscopy to clearly obtain images of individual impurity atoms in graphene ribbons.

It is possible to move graphene ribbons with a length of 5 to 50 nanometers using extremely small forces (2 to 200 piconewtons).

Researchers have made graphene ribbons before, but never as easily — previously the ribbons were cut from larger graphene sheets, which offered little control over their size and shape.

IMAGE: Using the atomic force microscope's carbon monoxide functionalized tip (red / silver), the forces between the tip and the various atoms in the graphene ribbon can be measured.

Not exact matches

In addition, a magnetic field near a two - dimensional ribbon of carbon — called a graphene nanoribbon — affects the current flowing through the ribbon.

However, for graphene to have the necessary semiconducting properties, it must be cut into ribbons less than 10 nanometers wide.

Like silicon, graphene is a semiconductor, but the nano - sized ribbons could be used to pack much more processing power on every computer chip.

Several research groups have found ways to «unzip» carbon nanotubes to produce atom - thick ribbons of graphene.

In another approach, Kim's group, working with IBM researchers, sliced graphene into 10 - nanometer - wide ribbons, team member Jarillo - Herrero reported at the March meeting of the American Physical Society.

The researchers also made a claw shape by sticking together eight 5 - by - 1 millimeter ribbons of flash - treated graphene oxide in a star shape.

Cross thinks that if he can control the way the ribbons form and stack, he might be able to use them as transistors (electrical switches), capacitors (devices that store electrical charge) or connections between electrically conductive graphene sheets.

But to reach that more stable state, a ribbon must tear other strong carbon — carbon bonds inside graphene as it peels away — an energetic barrier to movement.

Miniscule ribbons of graphene are highly sought - after building blocks for semiconductor devices because of their predicted electronic properties.

But this method only worked well to make ribbons that had two or more graphene layers.

One way of introducing a bandgap into graphene is to make extremely narrow ribbons of the material.