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相关论文: Mechanical Properties of Phosphorene Nanotubes: A …

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Using density functional tight-binding method, we studied the mechanical properties, deformation and failure of armchair (AC) and zigzag (ZZ) phosphorene nanotubes (PNTs) with monovacancies and divacancies subjected to uniaxial tensile…

材料科学 · 物理学 2018-05-09 V. Sorkin , Y. W. Zhang

Using molecular dynamics (MD) simulations, we explore the structural stability and mechanical integrity of phosphorene nanotubes (PNTs), where the intrinsic strain in the tubular PNT structure plays an important role. It is proposed that…

材料科学 · 物理学 2016-05-04 Xiangbiao Liao , Feng Hao , Hang Xiao , Xi Chen

We investigate the deformation and failure mechanisms of phosphorene sheet and nanoribbons under uniaxial tensile strain along the zigzag direction using the density functional tight-binding method. Surprisingly, twin-like deformation…

材料科学 · 物理学 2017-12-12 V. Sorkin , Y. Q. Cai , D. J. Srolovitz , Y. W. Zhang

Membranes of carbon allotropes comprised solely of densely packed pentagonal rings, known as pentagraphene, exhibit negative Poisson's ratio (auxetic behavior) and a bandgap of $3.2$ eV. In this work, we investigated the structural…

Using density functional tight-binding theory, we investigated the elastic properties and deformation and failure behaviors of pristine and defective carbon-phosphide (CP) monolayers subjected to uniform uniaxial tensile strain along…

材料科学 · 物理学 2018-09-26 V. Sorkin , Y. W. Zhang

We perform a comprehensive first-principles study of the electronic properties of phosphorene nanoribbons, phosphorene nanotubes, multilayer phosphorene, and heterobilayers of phosphorene and two-dimensional (2D) transition metal…

介观与纳米尺度物理 · 物理学 2014-06-18 Hongyan Guo , Ning Lu , Jun Dai , Xiaojun Wu , Xiao Cheng Zeng

In this work, the electronic properties of phosphorene nanoribbons with different width and edge configurations are studied by using density functional theory. It is found that the armchair phosphorene nanoribbons are semiconducting while…

介观与纳米尺度物理 · 物理学 2015-02-24 J. Zhang , H. J. Liu , L. Cheng , J. Wei , J. H. Liang , D. D. Fan , J. Shi , X. F. Tang , Q. J. Zhang

The central question in the field of 2D materials is how a material behaves when it is patterned at nanometer scale with different edge geometries. Due to the anisotropy inherent in the puckered structure, black phosphorene nanostructures…

介观与纳米尺度物理 · 物理学 2019-12-13 Yi Ren , Pu Liu , Benliang Zhou , Xiaoying Zhou , Guanghui Zhou

Based on density functional simulations combined with the Landauer transport theory, the mechanical strain impacts on the chemical bonds of phosphorene and their effects on the electronic properties are studied. Moreover, the effect of the…

材料科学 · 物理学 2018-10-01 Zahra Nourbakhsh , Reza Asgari

Phosphorene has been rediscovered recently, establishing itself as one of the most promising two dimensional group-V elemental monolayers with direct band gap, high carrier mobility, and anisotropic electronic properties. In this letter,…

材料科学 · 物理学 2016-03-24 Gaoxue Wang , G. C. Loh , Ravindra Pandey , Shashi P. Karna

Recently fabricated two dimensional (2D) phosphorene crystal structures have demonstrated great potential in applications of electronics. Mechanical strain was demonstrated to be able to significantly modify the electronic properties of…

材料科学 · 物理学 2014-07-02 Qun Wei , Xihong Peng

In this study, we analyze the band structure, the state characterization, and electronic transport of monolayer black phosphorus (phosphorene) zigzag nanoribbons (zPNRs) and armchair nanoribbons (aPNRs), using five-parameter tight-binding…

介观与纳米尺度物理 · 物理学 2015-08-17 Esmaeil Taghizadeh Sisakht , Mohammad H. Zare , Farhad Fazileh

A few-layer black phosphorene has recently gained significant interest in the scientific community. In this paper, we consider several polymorphs of phosphorene nanoribbons (PNRs) and employ deformation potential theory within the effective…

材料科学 · 物理学 2018-02-08 Sumandeep Kaur , Ashok Kumar , Sunita Srivastava , Ravindra Pandey , K. Tankeshwar

Two dimensional few-layer black phosphorus crystal structures have recently fabricated and demonstrated great potential in applications of electronics. In this work, we employed first principles density functional theory calculations to…

材料科学 · 物理学 2014-10-09 Xihong Peng , Qun Wei , Andrew Copple

We numerically study the effect of the edge states on the conductance and thermopower in zigzag phosphorene nanoribbons (ZPNRs) based on the tight-binding model and the scattering-matrix method. It is interesting to find that the band…

介观与纳米尺度物理 · 物理学 2016-09-14 R. Ma , H. Geng , W. Y. Deng , M. N. Chen , L. Sheng , D. Y. Xing

Pentahexoctite (PH) is a pure sp$^2$ hybridized planar carbon allotrope whose structure consists of a symmetric combination of pentagons, hexagons, and octagons. The proposed PH structure was shown to be an intrinsically metallic material…

Edge-induced gap states in finite phosphorene layers are examined using analytical models and density functional theory. The nature of such gap states depends on the direction of the cut. Armchair nanoribbons are insulating, whereas…

介观与纳米尺度物理 · 物理学 2015-06-19 A. Carvalho , A. S. Rodin , A. H. Castro Neto

Using the tight-binding approach, we investigate the thermoelectric (TE) properties of rectangular phosphorene nanorings for both symmetrically and asymmetrically attaching to phosphorene nanoribbon leads. We design our phosphorene-based…

介观与纳米尺度物理 · 物理学 2023-08-09 Fatemeh Moghadasi Borojeni , Esmaeil Taghizadeh Sisakht , Farhad Fazileh , F. M. Peeters

The study of the mechanical properties of nanostructured systems has gained importance in theoretical and experimental research in recent years. Carbon nanotubes (CNTs) are one of the strongest nanomaterials found in nature, with Young's…

Penta-graphene is the name given to a novel puckered monolayer of carbon atoms tightly packed into an inerratic pentagonal network, theoretically, which exhibits excellent thermal and mechanical stability and can be rolled into…

材料科学 · 物理学 2017-09-26 Mingwei Chen , Haifei Zhan , Yinbo Zhu , Hengan Wu , Yuantong Gu
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