Jump to main content
Jump to site search

Issue 3, 2017

Electronic structure of silicene: effects of the organic molecular adsorption and substrate

Author affiliations

Abstract

The potential of silicene-based integrated electronics originates from its extremely high carrier mobility, whereas the lack of a band gap impedes its application. Thus, opening a sizeable band gap without degrading its carrier mobility is a significant challenge for application in logic circuits. In this study, a sizable band gap is created in silicene by the dual effect of organic molecule adsorption and a substrate. As an electron donor molecule, tetrathiafulvalene (TTF) is found to non-covalently functionalize the silicene sheet. As a result, silicene with adsorbed TTF exhibits an open band gap. When silicane (hydrogenated silicene) substrate is applied, the band gap further widens. Moreover, the high carrier mobility is largely retained. These results provide effective and reversible routes for engineering the band gap of silicene.

Graphical abstract: Electronic structure of silicene: effects of the organic molecular adsorption and substrate

Article information


Submitted
13 Nov 2016
Accepted
14 Dec 2016
First published
14 Dec 2016

J. Mater. Chem. C, 2017,5, 627-633
Article type
Paper

Electronic structure of silicene: effects of the organic molecular adsorption and substrate

N. Gao, G. Y. Lu, Z. Wen and Q. Jiang, J. Mater. Chem. C, 2017, 5, 627 DOI: 10.1039/C6TC04943E

To request permission to reproduce material from this article, 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 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

Search articles by author

Spotlight

Advertisements