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The sensitive correlation between optical parameters and strain in Mo$S_2$ results in a totally different approach to tune the optical properties. Usually, an external source of strain is employed to monitor the optical and vibrational…

Mesoscale and Nanoscale Physics · Physics 2020-01-31 Shubham Bhagat , Shivani Sharma , Jasvir Singh , Sandeep Sharma

With the advances in low dimensional transition metal dichalcolgenides (TMDCs) based metal oxide semiconductor field effect transistor (MOSFET), the interface between semiconductors and dielectrics has received considerable attention due to…

Computational Physics · Physics 2017-01-02 Sheng Yu , Shunjie Ran , Hao Zhu , Kwesi Eshun , Chen Shi , Kai Jiang , Qiliang Li

We report on a modified transfer technique for atomically thin materials integrated onto microelectromechanical systems (MEMS) for studying strain physics and creating strain-based devices. Our method tolerates the non-planar structures and…

Strain engineering is an efficient tool to tune and tailor the electrical and optical properties of 2D materials. The built-in strain can be tuned during the synthesis process of a two dimensional semiconductor, as molybdenum disulfide, by…

Molybdenum disulfide (MoS$_2$) is a promising candidate for 2D nanoelectronic devices, that shows a direct band-gap for monolayer structure. In this work we study the electronic structure of MoS$_2$ upon both compressive and tensile strains…

Materials Science · Physics 2016-05-03 Miquel López-Suárez , Igor Neri , Riccardo Rurali

We demonstrate a method to induce tensile and compressive strain into two-dimensional transition metal dichalcogenide (TMDC) MoS$_{2}$ via the deposition of stressed thin films to encapsulate exfoliated flakes. With this technique we can…

Mesoscale and Nanoscale Physics · Physics 2021-07-15 Tara Peña , Shoieb A. Chowdhury , Ahmad Azizimanesh , Arfan Sewaket , Hesam Askari , Stephen M. Wu

A simple perfect absorption structure is proposed to achieve the high efficiency light absorption of monolayer molybdenum disulfide (MoS 2 ) by the critical coupling mechanism of guided resonances. The results of numerical simulation and…

Optics · Physics 2018-09-11 Xiaoyun Jiang , Tao Wang , Shuyuan Xiao , Xicheng Yan , Le Cheng , Qingfang Zhong

We report the influence of uniaxial tensile mechanical strain in the range 0-2.2% on the phonon spectra and bandstructures of monolayer and bilayer molybdenum disulfide (MoS2) two-dimensional crystals. First, we employ Raman spectroscopy to…

Mesoscale and Nanoscale Physics · Physics 2013-09-23 Hiram J. Conley , Bin Wang , Jed I. Ziegler , Richard F. Haglund , Sokrates T. Pantelides , Kirill I. Bolotin

Two dimensional (2D) materials such as graphene and transition metal dichalcogenides (TMDC) have received extensive research interests and investigations in the past decade. In this research, we report the first experimental measurement of…

Materials Science · Physics 2024-12-10 Jun Liu , Mengqi Fang , Eui-Hyeok Yang , Xian Zhang

The sensitive dependence of electronic and thermoelectric properties of MoS$_2$ on the applied strain opens up a variety of applications in the emerging area of straintronics. Using first principles based density functional theory…

Materials Science · Physics 2015-06-22 Swastibrata Bhattacharyya , Tribhuwan Pandey , Abhishek K. Singh

Strain engineering, which aims to tune the bandgap of a semiconductor by the application of strain, has emerged as an interesting way to control the electrical and optical properties of two-dimensional (2D) materials. Apart from the changes…

2D MoS2 attracts increasing attention for its application in flexible electronics and photonic devices. For 2D material optoelectronic devices, light absorption of the molecularly thin 2D absorber would be one of the key limiting factors in…

Mesoscale and Nanoscale Physics · Physics 2023-01-04 Xiaoxue Gao , Sidan Fu , Tao Fang , Xiaobai Yu , Haozhe Wang , Qingqing Ji , Jing Kong , Xiaoxin Wang , Jifeng Liu

Strain is a powerful tool to modify the optical properties of semiconducting transition metal dichalcogenides like MoS2, MoSe2, WS2 and WSe2. In this work we provide a thorough description of the technical details to perform uniaxial strain…

Materials Science · Physics 2021-05-11 Felix Carrascoso , Hao Li , Riccardo Frisenda , Andres Castellanos-Gomez

Strain can efficiently modulate the bandgap and carrier mobilities in two-dimensional (2D) materials. Conventional mechanical strain-application methodologies that rely on flexible, patterned or nano-indented substrates are severely limited…

Strain induced through fabrication, both by patterning and capping, can be used to change the properties of two-dimensional (2D) materials or other thin films. Here, we explore how capping layers impart strain to monolayer MoS$_{2}$ using…

Strain engineering is an important method for tuning the properties of semiconductors and has been used to improve the mobility of silicon transistors for several decades. Recently, theoretical studies have predicted that strain can also…

Materials Science · Physics 2022-10-07 Isha M. Datye , Alwin Daus , Ryan W. Grady , Kevin Brenner , Sam Vaziri , Eric Pop

Molybdenum disulfide (MoS$_2$) nanoribbons have attracted increased interest due to their properties which can be tailored by tuning their dimensions. Herein, we demonstrate the growth of highly crystalline quasi-one-dimensional (1D)MoS$_2$…

Molybdenum disulfide (MoS2) has drawn great interest for tunable photonics and optoelectronics advancement. Its solution processing, though scalable, results in randomly networked ensembles of discrete nanosheets with compromised properties…

Strain provides an effective means to tune the electrical properties while retaining the native chemical composition of the material. Unlike three-dimensional solids, two-dimensional materials withstand higher levels of elastic strain…

Mesoscale and Nanoscale Physics · Physics 2020-04-14 Ashby Phillip John , Arya Thenapparambil , Madhu Thalakulam

We use all-atom molecular dynamics simulations informed by density functional theory calculations to investigate aqueous ion transport across sub-nanoporous monolayer molybdenum disulfide (MoS$_2$) membranes subject to varying tensile…

Applied Physics · Physics 2019-01-28 A. Fang , K. Kroenlein , A. Smolyanitsky
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