Enhanced doping effect on tuning structural phases of monolayer antimony

doi:10.1063/1.5028265

CORC > 金属研究所 > 中国科学院金属研究所

	Enhanced doping effect on tuning structural phases of monolayer antimony
	Wang, JZ ; Yang, T 2; Zhang, ZD ; Yang, L 1
刊名	APPLIED PHYSICS LETTERS
	2018-05-21
卷号	112 期号:21 页码:-
ISSN号	0003-6951
DOI	10.1063/1.5028265
英文摘要	Doping is capable to control the atomistic structure, electronic structure, and even to dynamically realize a semiconductor-metal transition in two-dimensional (2D) transition metal dichalcogenides (TMDs). However, the high critical doping density (similar to 10(14) electron/cm(2)), compound nature, and relatively low carrier mobility of TMDs limits broader applications. Using first-principles calculations, we predict that, via a small transition potential, a substantially lower hole doping density (similar to 6 x 10(12) hole/cm(2)) can switch the ground-state structure of monolayer antimony from the hexagonal beta-phase, a 2D semiconductor with excellent transport performance and air stability but an indirect bandgap, to the orthorhombic alpha phase with a direct bandgap and potentially better carrier mobility. We further show that this structural engineering can be achieved by the established electrostatic doping, surface functional adsorption, or directly using graphene substrate. This gives hope to dynamically tuning and large-scale production of 2D single-element semiconductors that simultaneously exhibit remarkable transport and optical performance. Published by AIP Publishing.
学科主题	Physics, Applied
语种	英语
WOS记录号	WOS:000433140900028
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/80182]
专题	金属研究所_中国科学院金属研究所
作者单位	1.Washington Univ, Dept Phys, St Louis, MO 63136 USA 2.Washington Univ, Inst Mat Sci & Engn, St Louis, MO 63136 USA 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Wang, JZ,Yang, T,Zhang, ZD,et al. Enhanced doping effect on tuning structural phases of monolayer antimony[J]. APPLIED PHYSICS LETTERS,2018,112(21):-.
APA	Wang, JZ,Yang, T,Zhang, ZD,&Yang, L.(2018).Enhanced doping effect on tuning structural phases of monolayer antimony.APPLIED PHYSICS LETTERS,112(21),-.
MLA	Wang, JZ,et al."Enhanced doping effect on tuning structural phases of monolayer antimony".APPLIED PHYSICS LETTERS 112.21(2018):-.