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Zigzag phosphorene nanoribbons have quasi-flat band edge modes entirely detached from the bulk states. We analytically study the electronic transport through such edge states in the presence of a localized defect for semi-infinite and…

Disordered Systems and Neural Networks · Physics 2019-03-26 M. Amini , M. Soltani

We study the effects of the uniaxial tensile strain and shear deformation as well as their combinations on the electronic properties of single-layer black phosphorene. The evolutions of the strain-dependent band gap are obtained using the…

Accurate modeling of the pi-bands of armchair graphene nanoribbons (AGNRs) requires correctly reproducing asymmetries in the bulk graphene bands as well as providing a realistic model for hydrogen passivation of the edge atoms. The commonly…

Mesoscale and Nanoscale Physics · Physics 2011-08-22 Timothy B. Boykin , Mathieu Luisier , Gerhard Klimeck , Xueping Jiang , Neerav Kharche , Yu Zhou , Saroj K. Nayak

Edge atomic configuration often plays an important role in dictating the properties of finite-sized two-dimensional (2D) materials. By performing ab initio calculations, we identify a highly stable zigzag edge of phosphorene, which is the…

Materials Science · Physics 2017-03-29 Junfeng Gao , Xiangjun Liu , Gang Zhang , Yong-Wei Zhang

We explore the possibility of using van dar Waals bonded heterostructures of stacked together 2D bilayer black phosphorus (BP) for nanoscale device applications. The electronic property of BP in AA stacking and 90{\deg} twisted is studied…

Applied Physics · Physics 2018-11-09 Vivekanand Shukla , Anton Grigoriev , Rajeev Ahuja

Edge termination plays a vital role in determining the properties of 2D materials. By performing compelling ab initio simulations, a lowest-energy U-edge [ZZ(U)] reconstruction is revealed in the bilayer phosphorene. Such reconstruction…

Materials Science · Physics 2022-01-11 Shi-Qi LI , Xiangjun Liu , Xujun Wang , Hongsheng Liu , Gang Zhang , Jijun Zhao , Junfeng Gao

Transport of the edge-state electrons along zigzag phosphorene nanoribbons in presence of two impurities/vacancies is analytically investigated. Considering the places of the defects, a number of different situations are examined. When both…

Materials Science · Physics 2019-04-30 M. Amini , M. Soltani , E. Ghanbari-Adivi , M. Sharbafiun

First principles density-functional theory calculations were performed to investigate quantum confinement and edge effects on the electronic properties of zigzag green phosphorene nanoribbons (ZGPNRs) with edge chemical species including H,…

Strongly Correlated Electrons · Physics 2020-04-01 Chi Ma , Tianxing Ma , Xihong Peng

The resistance to failure through tearing is a crucial mechanical property for the application of different elastomers. In this work, graphene nanoplatelets (GNPs) were introduced into a fluoroelastomer (FKM) matrix with the aim of…

Applied Physics · Physics 2021-04-26 Mufeng Liu , Jason H. Hui , Ian A. Kinloch , Robert J. Young , Dimitrios G. Papageorgiou

The phosphorus-doped single wall carbon nanotube (PSWCNT) is studied by using First-Principle methods based on Density Function Theory (DFT). The formation energy, total energy, band structure, geometry structure and density of states are…

Mesoscale and Nanoscale Physics · Physics 2011-08-10 AQing Chen , QingYi Shao , ZhiCheng Lin

Recently synthesized Porous 12-Atom-Wide Armchair Graphene Nanoribbons Nano Lett. 2024, 24, 10718-10723 exhibit tunable properties through periodic porosity, enabling precise control over their electronic, optical, thermal, and mechanical…

We calculate the elastic properties of Janus transition metal dichalcogenide (TMD) nanotubes using first principles Kohn-Sham density functional theory (DFT). Specifically, we perform electronic structure simulations that exploit the cyclic…

Materials Science · Physics 2022-09-30 Arpit Bhardwaj , Phanish Suryanarayana

We have assessed mechanical bending as a powerful controlling tool for the electronic structure and optical properties of phosphorene nanoribbons. We use state-of-the-art density functional approximations in our work. The overall…

Materials Science · Physics 2021-12-08 Bimal Neupane , Hong Tang , Niraj K. Nepal , Adrienn Ruzsinszky

An antiferromagnetic insulating state has been found in the zigzag phosphorene nanoribbons (ZPNRs) from a comprehensive density functional theory calculations. Comparing with other one-dimensional systems, the magnetism in ZPNRs display…

Mesoscale and Nanoscale Physics · Physics 2015-04-06 Yongping Du , Huimei Liu , Bo Xu , Li Sheng , Jiang Yin , Chun-Gang Duan , Xiangang Wan

Black phosphorus (P), a layered material that can be isolated down to individual 2D crystalline sheets, exhibits highly anisotropic mechanical properties due to its corrugated crystal structure in each atomic layer, which are intriguing for…

Mesoscale and Nanoscale Physics · Physics 2015-04-07 Zenghui Wang , Philip X. -L. Feng

We propose a new type of edges, arising due to the anisotropy inherent in the puckered structure of a honeycomb system such as in phosphorene. Skewed-zigzag and skewed-armchair nanoribbons are semiconducting and metallic, respectively, in…

Mesoscale and Nanoscale Physics · Physics 2016-06-29 Marko M. Grujić , Motohiko Ezawa , Milan Ž. Tadić , Françios M. Peeters

Ballistic electrons in phosphorene $pn$ junctions show optical-like phenomena. Phosphorene is modeled by a tight-binding Hamiltonian that describes its electronic structure at low energies, where the electrons behave in the zigzag direction…

Mesoscale and Nanoscale Physics · Physics 2020-01-08 Yonatan Betancur-Ocampo , François Leyvraz , Thomas Stegmann

Armchair phosphorene nanoribbons (APNRs) are known to be semiconductors with an indirect bandgap. Here, we propose to introduce new states in the gap of APNRs by creating a periodic structure of vacancies (antidots). Based on the…

Mesoscale and Nanoscale Physics · Physics 2021-08-11 Mohsen Rezaei , Hossein Karbaschi , M. Amini , M. Soltani , Gholamreza Rashedi

Understanding failure in nanomaterials is critical for the design of reliable structural materials and small-scale devices that have components or microstructural elements at the nanometer length scale. No consensus exists on the effect of…

Materials Science · Physics 2013-07-12 X. Wendy Gu , Zhaoxuan Wu , Yong-Wei Zhang , David J. Srolovitz , Julia R. Greer

We propose a strategy to make phosphorus nanotubes from two well-known phosphorus allotropes: violet phosphorus and fibrous red phosphorus. First-principles calculations show that doping with sulfur dissociates the covalent bonds between…

Materials Science · Physics 2024-12-03 Romakanta Bhattarai , Xiao Shen