Sentences with phrase «graphene nanoribbons»

(Oct 2018) • Graphene nanoribbons enable ultra-sensitive mass detection (Apr 2017)

Sorkin and Su's calculations give further insights into these systems, indicating that as they point out in their report, «the intermediate structure experiences disintegration followed by a remarkable re-building process to form graphene nanoribbons with differently oriented grains.»

• Graphene meets the standard for industry (Mar 2018) • Shedding more light on graphene nanoribbons (Mar 2016) • Graphene nanoribbons mend from the brink (Apr 2018)

The technique has broad applications for on - surface chemistry and electronics, including the preparation of graphene nanoribbons and novel single - molecule devices.

In another, scientists used graphene nanoribbons to create a scaffold for neurons to grow along.

Graphene nanoribbons can be thousands of times longer than they are wide.

Wijeratne noted graphene nanoribbons are already being tested for use in DNA sequencing, in which strands of DNA are pulled through a nanopore in an electrified material.

What is more, if heteroatoms are incorporated into a precursor when synthesizing graphene, doped graphene nanoribbons (GNRs) can be produced.

Graphene nanoribbons (GNRs) bend and twist easily in solution, making them adaptable for biological uses like DNA analysis, drug delivery and biomimetic applications, according to scientists at Rice University.

For instance, the nanofabrication of 2D graphene nanomesh [1], 1D graphene nanoribbons [2] and 0D graphene quantum dots [3], has paved the way for the development of the promising field of nanographene optoelectronics.

Unconventional magnetic anisotropy in one - dimensional Rashba system realized by adsorbing Gd atom on zigzag graphene nanoribbons

A simple way to turn carbon nanotubes into valuable graphene nanoribbons may be to grind them, according to research led by Rice University.

J. P. Llinas, A. Fairbrother, G. Borin Barin, W. Shi, K. Lee, S. Wu, B. Yong Choi, R. Braganza, J. Lear, N. Kau, W. Choi, C. Chen, Z. Pedramrazi, T. Dumslaff, A. Narita, X. Feng, K. Mullen, F. Fischer, A. Zettl, P. Ruffieux, E. Yablonovitch, M. Crommie, R. Fasel, and J. Bokor, Short - channel field - effect transistors with 9 - atom and 13 - atom wide graphene nanoribbons, Nat Commun, vol.

This is probably because the edges of the graphene nanoribbons are saturated with hydrogen, which was not accounted for in the simulations.

«Swapping substrates improves edges of graphene nanoribbons: Using inert boron nitride instead of silica creates precise zigzag edges in monolayer graphene.»

«Many studies have predicted the properties of graphene nanoribbons with zigzag edges,» said Guangyu Zhang, senior author on the study.

To do this, they anchored two - dimensional strips of carbon atoms — so - called graphene nanoribbons — to a sharp tip and dragged them across a gold surface.

They also determined D - loops might be prevented entirely by starting with graphene nanoribbons rather than PAN.

This top - down approach to making graphene is quite different from previous works by Tour's lab, which pioneered the small - scale manufacture of the atom - thick material from common carbon sources, even Girl Scout cookies, and learned to split multiwalled nanotubes into useful graphene nanoribbons.

Nitrogen - doped carbon nanotubes or modified graphene nanoribbons may be suitable replacements for platinum for fast oxygen reduction, the key reaction in fuel cells that transform chemical energy into electricity, according to Rice University researchers.

Graphene nanoribbons are synthesized on a gold surface and interconnected to create a well - defined pore network.

Ultimately, the model could be applied to semiconductors used as high - efficiency thermoelectrics, and to graphene nanoribbons used as heat sinks for so - called ultra large scale integration devices, such as computer microprocessors.

Triangular graphene nanoribbons (a) are proposed as a new thermal rectifier, in which the heat flow in one direction is larger than that in the opposite direction.

Hu, Ruan, and Chen also published a paper four years ago in the journal Nano Letters, among the first to propose asymmetric graphene nanoribbons as a thermal rectifier in research using the molecular dynamics simulations.

The researchers used an advanced simulation method called molecular dynamics to demonstrate thermal rectification in structures called «asymmetric graphene nanoribbons.»

In Friedman's spintronic circuit design, electrons moving through carbon nanotubes — essentially tiny wires composed of carbon — create a magnetic field that affects the flow of current in a nearby graphene nanoribbon, providing cascaded logic gates that are not physically connected.

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

Not exact matches

Various methods of making graphene - based field effect transistors (FETs) have been exploited, including doping graphene tailoring graphene - like a nanoribbon, and using boron nitride as a support.

«We are now able to watch as individual molecules join together to form nanoribbons of graphene and polymers.

In February researchers at the University of Illinois showed that nanoribbons of graphene could be cut in such a way that they could be turned on and off.

In future studies, extending this method to other kinds of substrates could enable the quick large scale processing of monolayers of graphene to make high - quality nanoribbons with zigzag edges.

But there are ways to give the material a band gap, including using two separated strips of graphene fabricated as «nanoribbons.»

The sensitivity of graphene bio-devices can be improved by using narrow graphene materials like nanoribbons.»

The researchers discovered that all nanoribbons become rigid under stress, but their rigidity increases as oxide molecules are removed to turn graphene oxide nanoribbons into GNRs.

The researchers probed GNRs and their precursors, graphene oxide nanoribbons.