ŠMARHÁK Jiří Czech Technical University in Prague

Spoluautoři VOVES Jan

We analyzed electronic transport properties of graphene nanoribbons (GNR) patterned by [6+Nx12]annulene-like quantum antidots. We tried to simulate [18]annulene, [30]annulene and [42]annulene antidots placed on passivated graphene nanoribbon of appropriate width and length. Our results are predicting electronic transport properties similar to graphene. It is shown by analyzing the GNR transmissivities calculated by Extended Hückel self-consistent field model (EH-SCF). These structures can be used in future as a high precision molecular sieve for separation of almost any size of molecule because of its holes modifiable by using different [6+Nx12]annulenes. The sieving can be potentially controlled and/or measured by the changes of potential and/or current flow in chosen GNR layer of the sieve. These structures can be potentially usable for water desalinization, separation of industrially exhaled gases or for mining rare metals from ocean. It can be used as well as a totally new carbon-based nanomaterial with potentially interesting mechanical, optical or electronic transport properties and compatible with graphene. These structures can be prepared by the means of ion (or electron) beam lithography or by the bottom-up approach from chemical precursors in the future.