Band Gap Modulated by Electronic Superlattice in Blue Phosphorene

doi:10.1021/acsnano.8b02953

	Band Gap Modulated by Electronic Superlattice in Blue Phosphorene
	Liu, C; Wang JO(王嘉鸥); Du, Y; Hu, ZP; Dou, SX; Zhao, JJ; Wang, JO; Xu, X; Feng, HF; Liu, YN
刊名	ACS NANO
	2018
卷号	12 期号:5 页码:5059-5065
关键词	blue phosphorene band gap electronic superlattice ARPES STM band folding
ISSN号	1936-0851
DOI	10.1021/acsnano.8b02953
文献子类	Article
英文摘要	Exploring stable two-dimensional materials with appropriate band gaps and high carrier mobility is highly desirable due to the potential applications in optoelectronic devices. Here, the electronic structures of phosphorene on a Au(111) substrate are investigated by scanning tunneling spectroscopy, angle-resolved photo emission spectroscopy (ARPES), and density functional theory (DFT) calculations. The substrate -induced phosphorene superstructure gives a superlattice potential, leading to a strong band folding effect of the sp band of Au(111) on the band structure. The band gap could be clearly identified in the ARPES results after examining the folded sp band. The value of the energy gap (similar to 1.1 eV) and the high charge carrier mobility comparable to that of black phosphorus, which is engineered by the tensile strain, are revealed by the combination of ARPES results and DFT calculations. Furthermore, the phosphorene layer on the Au(111) surface displays high surface inertness, leading to the absence of multilayer phosphorene. All these results suggest that the phosphorene on Au(111) could be a promising candidate, not only for fundamental research but also for nanoelectronic and optoelectronic applications.
电子版国际标准刊号	1936-086X
WOS关键词	TOTAL-ENERGY CALCULATIONS ; WAVE BASIS-SET ; CRYSTAL-STRUCTURE ; BLACK PHOSPHORUS ; EFFICIENCY ; GERMANENE ; AU(111) ; GROWTH ; RED
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
WOS记录号	WOS:000433404500107
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/285960]
专题	高能物理研究所_多学科研究中心高能物理研究所_实验物理中心中国科学院高能物理研究所_中国散裂中子源
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Liu, C,Wang JO,Du, Y,et al. Band Gap Modulated by Electronic Superlattice in Blue Phosphorene[J]. ACS NANO,2018,12(5):5059-5065.
APA	Liu, C.,王嘉鸥.,Du, Y.,Hu, ZP.,Dou, SX.,...&Zhuang, JC.(2018).Band Gap Modulated by Electronic Superlattice in Blue Phosphorene.ACS NANO,12(5),5059-5065.
MLA	Liu, C,et al."Band Gap Modulated by Electronic Superlattice in Blue Phosphorene".ACS NANO 12.5(2018):5059-5065.