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Recent theoretical works on two-dimensional molybdenum disulfide, MoS$_2$, with sulfur vacancies predict that the suppression of thermal transport in MoS$_2$ by point defects is more prominent in monolayers and becomes negligible as layer…

Materials Science · Physics 2023-12-08 Ranjuna M K , Jayakumar Balakrishnan

Morphology plays a crucial role in deciding the chemical and optical properties of nanomaterials due to confinement effects. We report the morphology transition of colloidal molybdenum disulfide (MoS$_2$) nanostructures, synthesized by one…

Materials Science · Physics 2023-06-13 Simran Lambora , Asha Bhardwaj

Simulations have been carried out to establish how electron thermal physics, introduced in the form of a dynamic electron temperature, affects isolated filament motion and dynamics in 3D. It is found that thermal effects impact filament…

Plasma Physics · Physics 2016-11-24 N. R. Walkden , L. Easy , F. Militello , J. T. Omotani

Atomic vacancies, such as chalcogen vacancies in 2D TMDs, are important in changing the host material's electronic structure and transport properties. We present a straightforward one-step method for growing monolayer MoS2 utilizing…

Mesoscale and Nanoscale Physics · Physics 2024-05-28 Sudipta Majumder , Vaibhav Walve , Rahul Chand , Gokul M. A. , Sooyeon Hwang , G. V. Pavan Kumar , Aparna Deshpande , Atikur Rahman

The electrical and thermal behavior of nanoscale devices based on two-dimensional (2D) materials is often limited by their contacts and interfaces. Here we report the temperature-dependent thermal boundary conductance (TBC) of monolayer…

We investigate the role of temperature on the topological insulating state of metal dichalcogenide monolayers, 1T$^\prime$-MX$_2$ (M=W, Mo and X=S, Se). Using first principles calculations based on density functional theory, we consider…

Materials Science · Physics 2026-01-21 Siyu Chen , Isaac J. Parker , Bartomeu Monserrat

Establishment of a new technique or extension of an existing technique for thermal and thermoelectric measurements to a more challenging system is an important task to explore the thermal and thermoelectric properties of various materials…

Mesoscale and Nanoscale Physics · Physics 2018-03-22 Adili Aiyiti , Xue Bai , Jing Wu , Xiangfan Xu , Baowen Li

The effect of the electron temperature on both the light absorption and the scattering by metal nanoparticles (MNs) with excitation of the surface plasmon electron vibrations is studied in the framework of the kinetic theory. The formulae…

Mesoscale and Nanoscale Physics · Physics 2013-11-25 N. I. Grigorchuk

Transition metal dichalcogenides (TMDs), particularly monolayer MoS2, have received increased attention in materials science and have been exploited in diverse applications from photonics to catalysis. Defects in TMDs play a crucial role in…

Thermal transport in single layer molybdenum disulfide (MoS2) is critical to advancing its applications. In this paper, we use molecular dynamics (MD) simulations with first-principles force constants to study the isotope effect on the…

Materials Science · Physics 2015-10-06 Xufei Wu , Nuo Yang , Tengfei Luo

The alterations in the magnetic properties and electronic structure of chemical vapor deposition (CVD) grown nano-dimensional molybdenum disulfide (MoS2) after low energy ion irradiation are thoroughly investigated. The formation of pure…

Interface chemistry and defect formation in MoS2 thin films grown on single crystal substrates critically determine the electronic structure of MoS2 and thus can strongly modify material functionality relevant for many applications,…

This study explores the impact of temperature on defect dynamics in tungsten, emphasizing its application in nuclear fusion reactors as Plasma Facing Components (PFCs). Through atomistic simulations, the research elucidates the intricate…

Materials Science · Physics 2024-03-20 Yang Zhang , Jason R. Trelewicz

Mechanical shear deformations lead, in some cases, to effects similar to those resulting from ion irradiation. Here we characterize the effects of shear velocity and temperature on amorphous silicon (\aSi) modelled using classical molecular…

Materials Science · Physics 2015-05-19 Ali Kerrache , Normand Mousseau , Laurent J. Lewis

Defects usually play an important role in tuning and modifying various properties of semiconducting or insulating materials. Therefore we study the impact of point and line defects on the electronic structure and optical properties of MoS2…

Mesoscale and Nanoscale Physics · Physics 2017-04-26 Jens Kunstmann , Tsegabirhan B. Wendumu , Gotthard Seifert

Two-dimensional (2D) molybdenum disulfide (MoS2) has attracted significant attention because of its outstanding properties, suitable for application in several critical technologies like, solar cells, photocatalysis, lithium-ion batteries,…

Computational Physics · Physics 2018-06-13 Mostafa Hasanian , Bohayra Mortazavi , Alireza Ostadhossein , Timon Rabczuk , Adri C. T. van Duin

MoS2 is one of the most investigated and promising transition-metal dichalcogenides. Its popularity stems from the interesting properties of the monolayer phase, which can serve as the fundamental block for numerous applications. In this…

Materials Science · Physics 2024-07-30 Riccardo Dettori , Francesco Siddi , Luciano Colombo , Claudio Melis

Temperature effects on the energetics of the 90-degree partial dislocation in silicon and germanium are investigated, using non-equilibrium methods to estimate free energies, coupled with Monte Carlo simulations. Atomic interactions are…

Materials Science · Physics 2016-08-31 Caetano R. Miranda , Ricardo W. Nunes , A. Antonelli

Developing novel techniques for depositing transition metal dichalcogenides is crucial for the industrial adoption of 2D materials in optoelectronics. In this work, the lateral growth of molybdenum disulfide (MoS2) over an insulating…

We investigate the effect due to background impurities embedded in the region of two-dimensional electron gases to the magnetotransport. These impurities are achieved by homogeneously incorporating Si atoms in single quantum wells of high…

Mesoscale and Nanoscale Physics · Physics 2015-11-26 E. P. Rugeramigabo , L. Bockhorn , R. J. Haug