Effects of surface regulation on monolayers SbAs and BiSb

Author:

Yuan Jun-Hui ,Xie Qing-Xing ,Yu Nian-Nian ,Wang Jia-Fu ,

Abstract

Using the first principle calculation based on the density functional theory, we systematically investigate the stabilities and the structural and electronic structures of fully hydrogenated and fully fluorinated SbAs and BiSb. The results show that the SbAs and BiSb transform the buckled structure into quasi-planar structure after being fully hydrogenated or low-buckled structure after being fully fluorinated. Stability studies show that both the SbAs and BiSb structures(intrinsic, full hydrogenated, and fully fluorinated) are highly stable, and thus likely to be obtained in experiment. The electronic structure study shows that both SbAs and BiSb turn from wide band gap semiconductors into narrow direct-gap semiconductors after being fully hydrogenated and fully fluorinated, meanwhile the band structures still have good linear dispersion. Based on further analyses of the electronic structures of quasi-planar or low-buckled SbAs and BiSb, the reasons for the changes of band structures are revealed. Calculations show that the fX-SbAs(X=H, F) films on h-BN substrate can maintain the direct band gap characteristics because of the weak coupling between them, indicating that they may have great applications in the field of optoelectronic devices in the future.

Publisher

Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences

Subject

General Physics and Astronomy

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3