Issue 32, 2023

Tuning the conductance of carbon rings with impurities and electric fields

Abstract

We explore two mechanisms to tune the electronic conductance of carbon atom rings, namely, substitutional impurities and in-plane external electric fields. First-principles calculations and a tight-binding approach are used to model the systems. Two bond configurations are studied, cumulenic and polyynic, which can be relevant depending on the number of carbon atoms in the ring. We find that both impurity substitution and electric field mechanisms allow for modifying the electronic spectrum and transport characteristics. Interestingly, cumulenic and polyynic carbon rings present a different response to these perturbations, which can also be a way to elucidate the bond nature of these structures.

Graphical abstract: Tuning the conductance of carbon rings with impurities and electric fields

Article information

Article type
Paper
Submitted
17 Mai 2023
Accepted
05 Jul 2023
First published
25 Jul 2023
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2023,13, 22358-22366

Tuning the conductance of carbon rings with impurities and electric fields

C. Rojas, A. León, M. Pacheco, L. Chico and P. A. Orellana, RSC Adv., 2023, 13, 22358 DOI: 10.1039/D3RA03297C

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements