Controllable magnitude and anisotropy of the electrical conductivity of Hf3C2O2 MXene

doi:10.1088/1361-648X/aa62da

	Controllable magnitude and anisotropy of the electrical conductivity of Hf3C2O2 MXene
	Francisco,Joseph S 3; Zha,Xian-Hu 2; Zhou,Jie 2; Luo,Kan 2; Lang,Jiajian 2; Huang,Qing 2; Zhou,Xiaobing 2; He,Jian 1; Du,Shiyu 2
刊名	Journal of Physics: Condensed Matter
	2017-03-16
卷号	29 期号:16
关键词	MXene electronic structure electrical conductivity strain sensor
ISSN号	0953-8984
DOI	10.1088/1361-648X/aa62da
英文摘要	Abstract Hf3C2O2, a new MXene member synthesized recently, was predicted to be a semi-metal with high mechanical strength. Based on the unique electronic structure, the energy bands and electrical conductivities of the MXene under various strains are comprehensively investigated in this paper. Biaxial and two orthogonal uniaxial strains in both compressive and tensile manners are studied. Results from this study suggest that Hf3C2O2 shows a transition between semi-metal and semi-conductor under both biaxial and uniaxial strains. A compressive strain generally induces a larger energy overlap between the conduction band minimum and the valance band maximum, while a tensile strain reduces the energy band overlap and even opens a band gap. As a consequence, the magnitude of electrical conductivity decreases drastically from compressive to tensile strains applied. Moreover, the uniaxial strains are determined to be efficient in manipulating the anisotropy of the electrical conductivity. These data imply that the Hf3C2O2 MXene is a promising candidate material for devices such as strain sensors.
语种	英语
出版者	IOP Publishing
WOS记录号	IOP:0953-8984-29-16-AA62DA
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/167076]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Department of Biotechnology, Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, People’s Republic of China 2.Engineering Laboratory of Specialty Fibers and Nuclear Energy Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, People’s Republic of China 3.Departments of Chemistry and Earth and Atmospheric Science, Purdue University, West Lafayette, IN 47906, United States of America
推荐引用方式 GB/T 7714	Francisco,Joseph S,Zha,Xian-Hu,Zhou,Jie,et al. Controllable magnitude and anisotropy of the electrical conductivity of Hf3C2O2 MXene[J]. Journal of Physics: Condensed Matter,2017,29(16).
APA	Francisco,Joseph S.,Zha,Xian-Hu.,Zhou,Jie.,Luo,Kan.,Lang,Jiajian.,...&Du,Shiyu.(2017).Controllable magnitude and anisotropy of the electrical conductivity of Hf3C2O2 MXene.Journal of Physics: Condensed Matter,29(16).
MLA	Francisco,Joseph S,et al."Controllable magnitude and anisotropy of the electrical conductivity of Hf3C2O2 MXene".Journal of Physics: Condensed Matter 29.16(2017).