Issue 18, 2016

N- and p-type doping of antimonene

Abstract

Antimonene, monolayer antimony, was recently predicted to be a two-dimensional (2D) semiconductor with a blue photoresponse. N- and p-type doping of this material is essential for its future application in optoelectronic devices, but has not yet been carried out. Here, we introduce tetrathiafulvalene (TTF) and tetracyanoquinodimethane (TCNQ) as electron and hole dopants to attain n- and p-type antimonene semiconductors. Then, the electronic properties of the chemically doped antimonene are investigated based on comprehensive first-principles calculations. Through TTF modified antimonene, we acquire an n-type semiconductor with a deep donor state of 0.73 eV. Importantly, through TCNQ functionalized antimonene, a p-type semiconductor is achieved with a shallow acceptor state of 0.27 eV. Moreover, the co-adsorption of TTF and TCNQ on antimonene can significantly decrease the band-gaps to 0.15 and 0.12 eV in the one- and two-side configurations, respectively, exhibiting n-type semiconductance with shallow donor states. Such n- and p-type antimonene semiconductors may widen the application of two-dimensional semiconductors in electronics and optoelectronics.

Graphical abstract: N- and p-type doping of antimonene

Supplementary files

Article information

Article type
Paper
Submitted
01 dek 2015
Accepted
16 yan 2016
First published
20 yan 2016

RSC Adv., 2016,6, 14620-14625

N- and p-type doping of antimonene

M. Xie, S. Zhang, B. Cai, Y. Zou and H. Zeng, RSC Adv., 2016, 6, 14620 DOI: 10.1039/C5RA25572D

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

Spotlight

Advertisements