Results 171 to 180 of about 148,020 (202)

Monolayer MoS2 self-switching diodes

Journal of Applied Physics, 2016
This paper presents a new molybdenum disulphide (MoS2) nanodevice that acts as a two-terminal field-effect rectifier. The device is an atomically-thin two-dimensional self-switching diode (SSD) that can be realized within a single MoS2 monolayer with very minimal process steps.
Feras Al-Dirini, Faruque M. Hossain, Mahmood A. Mohammed, Md Sharafat Hossain, Ampalavanapillai Nirmalathas, Efstratios Skafidas   +5 more
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Phonon Dephasing in Bulk and Monolayer MoS2

Conference on Lasers and Electro-Optics, 2017
We investigate phonon dephasing times in MoS 2 using a two-pulse coherent Raman spectroscopy method. The phonon dephasing times are 3.9 and 4.9 ps in monolayer and bulk MoS 2 at room temperature.
Liuyang Sun, Kha Tran, Sebastian Roesch, Junho Choi, Eduardo Priego, Galan Moody, Yu-Ming Chang, Kevin L. Silverman, Richard P. Mirin, Xiaoqin Li   +9 more
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Intervalley Biexcitons in Monolayer MoS2

2017
Interactions between two excitons can result in the formation of bound quasiparticles, known as biexcitons. Their properties are determined by the constituent excitons, with orbital and spin states resembling those of atoms. Monolayer transition metal dichalcogenides (TMDs) present a unique system where excitons acquire a new degree of freedom, the ...
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Tunability of effective masses on MoS2 monolayers

Microelectronic Engineering, 2015
Display Omitted Density Functional Theory calculations of monolayer MoS2 in the presence of strain.Effect of an external electric field and two reconstructions of a SiO2 substrate.Calculation of effective mass and bandgap for compressive and tensile biaxial strain.
Blanca Biel, Luca Donetti, Ernesto R. Ortiz, Andrés Godoy, Francisco Gámiz   +4 more
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Phonon thermal conductivity of monolayer MoS2

Applied Physics Letters, 2016
We use nonequilibrium molecular dynamics modeling using Stillinger–Weber interatomic potential to investigate the thermal properties of monolayer molybdenum disulfide (MoS2) nanoribbons. We study the impact of factors such as length, edge chirality, monovacancies, and uniaxial stretching on the thermal conductivity of MoS2 nanoribbons. Our results show
Xiaonan Wang, Alireza Tabarraei
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Gas sensor based on MoS2 monolayer

Sensors and Actuators B: Chemical, 2016
Abstract We investigate the electronic and transport properties of a MoS 2 monolayer transducer with some simple gas molecules, such as CO, CO 2 and NO to explore theoretically sensing capabilities of this monolayer. The calculations are performed using nonequilibrium Green's function (NEGF) formalism based on the density functional theory (DFT) as
Aliasghar Shokri, Nadia Salami
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Gas Sensing Using Monolayer MoS2

2019
In this chapter we explore the possibilities of using MoS2 for chemical gas sensing. We first introduce monolayer MoS2 and discuss the different reconstructed phases that can be produced in terms of their atomic and electronic structure. We show how these properties can vary drastically from their bulk counterparts, and how MoS2 can be taken as a ...
Canton-Vitoria R., Sayed-Ahmad-Baraza Y., Ewels C., Winterauer D., Batten T., Brunton A., Nufer S., Tagmatarchis, Nikos   +7 more
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Formation of nanosized monolayer MoS2 by oxygen-assisted thinning of multilayer MoS2

Journal of Applied Physics, 2016
We report the controllable nanosized local thinning of multi-layer (2 L and 3 L)-thickness MoS2 films down to the monolayer (1 L) thickness using the simple method of annealing in a dry oxygen atmosphere. The annealing temperature was optimized in the range of 240 °C to 270 °C for 1.5 h, and 1 L thick nanosized pits were developed on the uniform film ...
Guru P. Neupane, Krishna P. Dhakal, Hyun Kim, Jubok Lee, Min Su Kim, Ganghee Han, Young Hee Lee, Jeongyong Kim   +7 more
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Electronic transport on monolayer MoS2

Transport électronique sur monocouche MoS2 La découverte du graphène par Andre Geim et Novoselov a suscité un intérêt croissant pour les systèmes bidimensionnels (2D), aussi bien pour des applications et recherche en physique fondamentale.
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Plasmonics enhanced average broadband absorption of monolayer MoS2

2015 IEEE Photonics Conference (IPC), 2015
We have studied characterization of micromechanical cleavage monolayer molybdenum disulfide (MoS2) deposited on SiO2/Si and glass substrates. Spherical gold (Au) nanoparticles were anchored on top of monolayer MoS2 film. Direct reflection spectra were measured, which infers significant improvement of total average absorption of monolayer MoS2 in Vis ...
Bablu Mukherjee, Ergun Simsek
openaire   +1 more source