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Using first-principles calculations, we study the electronic properties of few-layer phosphorene focusing on layer-dependent behavior of band gap, work function and band alignment and carrier effective mass. It is found that few-layer…

材料科学 · 物理学 2014-10-13 Yongqing Cai , Gang Zhang , Yong-Wei Zhang

Recently, the successful synthesis of the pentagonal form of PdTe$_{2}$ monolayer (\emph{p}-PdTe$_{2}$) was reported [Liu~\emph{et al.}, Nature Materials \textbf{23}, 1339 (2024)]. In this work, we present an extensive first-principles…

材料科学 · 物理学 2025-01-07 Poonam Sharma , Vaishali Roondhe , Alok Shukla

We investigate, based on the tight-binding model and in the linear deformation regime, the strain dependence of the electronic band structure of phosphorene, exposed to a uniaxial strain in one of its principle directions, the normal, the…

介观与纳米尺度物理 · 物理学 2015-12-21 Yawar Mohammadi , Borhan Arghavani Nia

Due to the noticeable structural similarity and being neighborhood in periodic table of group-IV and -V elemental monolayers, whether the combination of group-IV and -V elements could have stable nanosheet structures with optimistic…

材料科学 · 物理学 2021-07-22 Hao Cheng , Jin-Cheng Zheng

Utilizing a combination of low-temperature scanning tunneling microscopy/spectroscopy (STM/STS) and electronic structure calculations, we characterize the structural and electronic properties of single atomic vacancies within several…

Motivated by recent experimental progress, we study the effect of mechanical deformations on the superconducting pairing symmetries in monolayer black phosphorus (MBP). Starting with phonon-mediated intervalley spin-singlet…

材料科学 · 物理学 2019-05-16 Mohammad Alidoust , Morten Willatzen , Antti-Pekka Jauho

In this study, we systematically investigated the mechanical responses of monolayer molybdenum ditelluride (MoTe2) using molecular dynamics (MD) simulations. The tensile behavior of trigonal prismatic phase (2H phase) MoTe2 under uniaxial…

Recently, laser-assisted chemical vapor deposition was used to synthesize a free-standing, continuous, and stable monolayer amorphous carbon (MAC). MAC is a pure carbon structure composed of randomly distributed five, six, seven, and eight…

Phosphorene and its components are highly reactive to oxygen when exposed to ambient conditions due to the presence of lone pairs of electrons on phosphorus atoms. Functionalization serves as a solution to prevent the chemical degradation…

Recently, a new 2D carbon allotrope structure, named phagraphene (PG), was proposed. PG has a densely array of penta-hexa-hepta-graphene carbon rings. PG was shown to present low and anisotropic thermal conductivity and it is believed that…

We calculate an electron-phonon scattering and intrinsic transport properties of black phosphorus monolayer using tight-binding and Boltzmann treatments as a function of temperature, carrier density, and electric field. The low-field…

介观与纳米尺度物理 · 物理学 2017-04-12 Yuri Trushkov , Vasili Perebeinos

A novel two-dimensional carbon allotrope called PCF-graphene has been theoretically proposed. The development of its nanostructured morphology has arrangement a non-aromatic molecule cyclooctatetraene as a precursor (poly-cyclooctatetraene…

计算物理 · 物理学 2023-10-04 Reza Kalami , Seyed Ahmad Ketabi , José M. De Sousa

Various types of defects in MoS2 monolayers and their influence on the electronic structure and transport properties have been studied using the Density-Functional based Tight-Binding method in conjunction with the Green's Function…

We performed density functional theory calculations with self-consistent van der Waals corrected exchange-correlation (XC) functionals to capture the structure of black phosphorus and twelve monochalcogenide monolayers and find the…

介观与纳米尺度物理 · 物理学 2020-01-01 Shiva P. Poudel , John W. Villanova , Salvador Barraza-Lopez

Black phosphorus and its single-layer constituent, phosphorene, have emerged as promising two-dimensional materials with remarkable tribological properties. However, recent experimental investigations revealed that the their lubricating…

材料科学 · 物理学 2025-12-30 Matteo Vezzelli , Carsten Gachot , Maria Clelia Righi

Studies aimed at designing new allotropic forms of carbon have received much attention. Recently, a new 2D graphene-like allotrope named Pentahexoctite was theoretically proposed. Pentahexoctite has a metallic signature, and its structure…

Me-graphene (MeG) is a novel two-dimensional (2D) carbon allotrope. Due to its attractive electronic and structural properties, it is important to study the mechanical behavior of MeG in its monolayer and nanotube topologies. In this work,…

A quasi-2D semiconductor carbon allotrope called tetrahexcarbon, also named tetragraphene, was recently proposed featuring an unusual structure combining squared and hexagonal rings. Mechanical and electronic properties of tetragraphene…

In this work, we present a computational study on the possibility of strain engineering in monolayer Black Phosphorus (black P) and Blue Phosphorus (blue P) based MOSFETs. The material properties like band structure, carrier effective…

材料科学 · 物理学 2016-02-25 L. Banerjee , A. Mukhopadhyay , A. Sengupta , H. Rahaman

Black phosphorus (P) has emerged as a layered semiconductor with a unique crystal structure featuring corrugated atomic layers and strong in-plane anisotropy in its physical properties. Here, we demonstrate that the crystal orientation and…

介观与纳米尺度物理 · 物理学 2016-09-27 Zenghui Wang , Hao Jia , Xu-Qian Zheng , Rui Yang , G. J. Ye , X. H. Chen , Philip X. -L. Feng