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Molybdenum disulfide (MoS$_2$) nanosheet is a two-dimensional material with high electron mobility and with high potential for applications in catalysis and electronics. We synthesized MoS$_2$ nanosheets using a one-pot wet-chemical…

Materials Science · Physics 2021-02-11 Se-Ho Kim , Joohyun Lim , Rajib Sahu , Olga Kasian , Leigh T. Stephenson , Christina Scheu , Baptiste Gault

Nanoscale tailoring of the optoelectronic response of 2D Transition Metal Dichalcogenides semiconductor layers (TMDs) has been achieved thanks to a novel strain engineering approach based on the grayscale thermal-Scanning Probe Lithography…

Mesoscale and Nanoscale Physics · Physics 2026-01-21 G. Zambito , G. Ferrando , M. Barelli , M. Ceccardi , F. Caglieris , D. Marre , F. Bisio , F. B. de Mongeot , M. C. Giordano

We demonstrate the tunability of the photoluminescence (PL) properties of monolayer (1L)-MoS2 via chemical doping. The PL intensity of 1L-MoS2 was drastically enhanced by the adsorption of p-type dopants with high electron affinity, but…

Materials Science · Physics 2015-06-16 Shinichiro Mouri , Yuhei Miyauchi , Kazunari Matsuda

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

Two dimensional nanomaterials like Molybdenum disulfide have been drawing a lot of interest due to their excellent nonlinear optical response. In this research we study thermal lens formation in MoS2 nanoflakes dispersion using mode…

We investigate the behavior of low-energy electrons in two-dimensional molybdenum disulfide when submitted to an external magnetic field. Highly degenerate Landau levels form in the material, between which light-induced excitations are…

Mesoscale and Nanoscale Physics · Physics 2013-10-22 Félix Rose , M. O. Goerbig , Frédéric Piéchon

A plethora of different morphologies are fabricated by the self assembly of molybdenum disulphide (MoS2) exfoliated flakes with the help of Langmuir-Blodgett (LB) technique at the liquid/air interface. The MoS2 flakes are chemically…

Materials Science · Physics 2017-01-11 Harneet Kaur , Ved Varun Agrawal , Ritu Srivastava

Photonic integrated circuits are an enabling technology in modern communications systems. The continually increasing demands for higher-speed and lower operating power devices have resulted in the continued impetus to shrink photonic…

Mesoscale and Nanoscale Physics · Physics 2014-04-08 Kenneth M. Goodfellow , Ryan Beams , Chitraleema Chakraborty , Lukas Novotny , A. Nick Vamivakas

Molybdenum Disulphide (MoS2) is an interesting material which exists in atomically thin multilayers and can be exfoliated into monolayer or a few layers for multiple applications. It has emerged as a promising material for development of…

Electric and thermoelectric properties of strictly monolayer MoS$_2$ films, which are grown using a novel micro-cavity based CVD growth technique, have been studied under diverse environmental and annealing conditions. Resistance of a…

Mesoscale and Nanoscale Physics · Physics 2020-09-16 Swarup Deb , Pritam Bhattacharyya , Poulab Chakrabarti , Himadri Chakraborti , Kantimay Das Gupta , Alok Shukla , Subhabrata Dhar

Strain-engineered transition-metal dichalcogenide nanobubbles are promising platforms for quantum emission, as revealed by recent experimental observations. In this work, we present an \textit{ab initio} investigation of MoS$_2$, WS$_2$,…

Mesoscale and Nanoscale Physics · Physics 2026-02-25 Stefan Velja , Alexander Steinhoff , Jannis Krumland , Christopher Gies , Caterina Cocchi

Single layers of transition metal dichalcogenides such as MoS$_2$ are direct bandgap semiconductors with optical and electronic properties distinct from multilayers due to strong vertical confinement. Despite the fundamental monolayer limit…

Mesoscale and Nanoscale Physics · Physics 2017-09-14 Guohua Wei , Erik J. Lenferink , David A. Czaplewski , Nathaniel P. Stern

Metasurfaces have attracted extensive interests due to their ability to locally manipulate optical parameters of light and easy integration to complex optical systems. Particularly, metasurfaces can provide a novel platform for splitting…

Understanding the microscopic mechanism of chemical vapor deposition (CVD) growth of two-dimensional molybdenum disulfide (2D MoS2) is a fundamental issue towards the function-oriented controlled growth. In this work, we report results on…

Materials Science · Physics 2017-04-21 Dancheng Zhu , Haibo Shu , Feng Jiang , Danhui Lv , Vijay Asokan , Omar Omar , Jun Yuan , Ze Zhang , Chuanhong Jin

Molybdenum Disulfide (MoS$_2$) has been recognized as a potential substitution of Platinum (Pt) for electrochemical hydrogen evolution reaction (HER). However, the broad adoption of MoS$_2$ is hindered by its limited number of active sites…

Chemical Physics · Physics 2021-09-27 Sichen Wei , Yu Fu , Huamin Li , Fei Yao

Precise manipulation of electronic band structures of two-dimensional (2D) transition metal dichalcogenides and oxides (TMD&Os) via localised strain engineering is an exciting avenue for exploiting their unique characteristics for…

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

We explore the combined impact of sulfur vacancies and electronic interactions on the optical properties of monolayer MoS$_2$. First, we present a generalized Anderson-Hubbard Hamiltonian that accounts for both randomly distributed sulfur…

Disordered Systems and Neural Networks · Physics 2018-06-06 C. E. Ekuma , D. Gunlycke

We present a device scheme to explore mesoscopic transport through molybdenum disulfide (MoS$_2$) constrictions using photodoping. The devices are based on van-der-Waals heterostructures where few-layer MoS$_2$ flakes are partially…

We fabricate a free-standing molybdenum diselenide (MoSe2) saturable absorber by embedding liquid-phase exfoliated few-layer MoSe2 flakes into a polymer film. The MoSe2-polymer composite is used to Q-switch fiber lasers based on ytterbium…