Hi,
* There is no bandgap for zigzag GNRs if the spin is neglected. In some of the studies in the literature, spin is neglected and analyses are done considering zigzag GNRs as metallic.
* In another group of works however, it is argued that spin-polarized bandstructure of zGNRs have small...
Hi,
The transmission of nano devices are generally done without cosidering the spin polarization. However, as I saw in some papers, the effect of spin is sometimes included. How can I decide to use spin or not when simulationg transmission of nanoscale devices?
Thanks in advance...
Hi,
I got a graphene dispersion on ebay but the graphene flakes cumulated at the bottom of the bottle. I'm trying to mix it and then solve in water using an ultrasonic cleaner but the flakes do not dissolve in water? How can I dissolve it so that I can obtain a large scale graphene by...
Hi,
I just got a small bottle of graphene dispersion (not GO) on ebay and put a small drop on a ciruit board as shown in the pic. I expected to measure a finite resistance because graphene is a conductor as much as I know. But it seems to have zero conductance from what I read on the...