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The microscopic process of oxidative etching of two-dimensional molybdenum disulfide (2D MoS2) at an atomic scale is investigated using a correlative TEM-etching study. MoS2 flakes on graphene TEM grids are precisely tracked and…

Materials Science · Physics 2018-11-13 Danhui Lv , Hulian Wang , Dancheng Zhu , Jie Lin , Guoli Yin , Fang Lin , Ze Zhang , Chuanhong Jin

Twisted multilayers of two-dimensional (2D) materials are an increasingly important platform for investigating quantum phases of matter, and in particular, strongly correlated electrons. The moir\'e pattern introduced by the relative twist…

Materials Science · Physics 2023-01-11 Mattia Angeli , Gabriel R. Schleder , Efthimios Kaxiras

Two-dimensional (2D) semiconducting transition metal dichalcogenides such as MoS$_2$ have attracted extensive research interests for potential applications in optoelectronics, spintronics, photovoltaics, and catalysis. To harness the…

Materials Science · Physics 2020-07-01 Anne Marie Z. Tan , Christoph Freysoldt , Richard G. Hennig

We explore the band structure and ballistic electron transport in twisted bilayer $\textrm{MoS}_2$ using Density Functional Theory (DFT). The sphagetti like bands are unfolded to generate band structures in the primitive unit cell of the…

Materials Science · Physics 2016-09-21 Yaohua Tan , Fan Chen , Avik Ghosh

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…

Using density functional theory, the electronic structures of single walled molybdenum disulfide nanotubes (MoS$_2$ NTs) were investigated as a function of diameter. Our calculations show that the electronic structure near the band gap is…

Materials Science · Physics 2021-05-12 Kaoru Hisama , Mina Maruyama , Shohei Chiashi , Shigeo Maruyama , Susumu Okada

Although many prototype devices based on two-dimensional (2D) MoS2 have been fabricated and wafer scale growth of 2D MoS2 has been realized, the fundamental nature of 2D MoS2-metal contacts has not been well understood yet. We provide a…

Mesoscale and Nanoscale Physics · Physics 2015-07-03 Hongxia Zhong , Zeyuan Ni , Yangyang Wang , Meng Ye , Zhigang Song , Yuanyuan Pan , Ruge Quhe , Jinbo Yang , Li Yang , Junjie Shi , Jing Lu

This paper introduces monolayer molybdenum disulfide (MoS2) based junction-less (JL) field-effect transistor (FET) and evaluates its performance at the smallest foreseeable (5.9 nm) transistor channel length as per the International…

Mesoscale and Nanoscale Physics · Physics 2015-09-03 Wei Cao , Jiahao Kang , Kaustav Banerjee

It is now well established theoretically and experimentally that a moir\'e pattern, due to a rotation of two atomic layers with respect to each other, creates low-energy flat bands. First discovered in twisted bilayer graphene, these new…

Mesoscale and Nanoscale Physics · Physics 2023-07-13 Somepalli Venkateswarlu , Ahmed Misssaoui , Andreas Honecker , Guy Trambly de Laissardière

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

Moir\'e superlattices in two-dimensional (2D) materials exhibit rich quantum phenomena, but ab initio modelling of these systems remains computationally prohibitive. Existing machine learning methods for accelerating density-functional…

Materials Science · Physics 2026-02-11 Zekun Lou , Alan M. Lewis , Mariana Rossi

Recently emerging large-area single-layer MoS2 grown by chemical vapor deposition has triggered great interest due to its exciting potential for applications in advanced electronic and optoelectronic devices. Unlike gapless graphene, MoS2…

The advent of twisted moir\'e heterostructures as a playground for strongly correlated electron physics has led to a plethora of experimental and theoretical efforts seeking to unravel the nature of the emergent superconducting and…

Strongly Correlated Electrons · Physics 2022-05-06 Dominik Kiese , Yuchi He , Ciarán Hickey , Angel Rubio , Dante M. Kennes

Monolayers of transition-metal dichalcogenides (TMDs) hold great promise as future nanoelectronic and optoelectronic devices. An essential feature for achieving high device performance is the use of suitable supporting substrates, which can…

Materials Science · Physics 2021-03-10 Nourdine Zibouche , Martin Schlipf , Feliciano Giustino

Structural, interfacial, optical, and transport properties of large-area MoS2 ultra-thin films on BN-buffered silicon substrates fabricated using magnetron sputtering are investigated. A relatively simple growth strategy is demonstrated…

We study the transport properties of deeply scaled monolayer MoS2 n-channel metal-oxide-semiconductor field effect transistors (MOSFETs) using full-band ballistic quantum transport simulations with an atomistic tight-binding Hamiltonian…

Mesoscale and Nanoscale Physics · Physics 2013-11-27 Jiwon Chang , Leonard F. Register , Sanjay K. Banerjee

Atomically thin, single-crystalline transition metal dichalcogenides (TMDCs) grown via chemical vapor deposition (CVD) on sapphire substrates exhibit exceptional mechanical and electrical properties, positioning them as excellent channel…

The objective of this work is to study the effects of charge redistribution, applied layer-normal electric fields, applied strain, and layer engineering on the band alignment of Black Phosphorus (BP)/Molybdenum disulphide (MoS2)…

Materials Science · Physics 2022-12-28 Nupur Navlakha , Priyamvada Jadaun , Leonard F. Register , Sanjay K. Banerjee

Electronic and thermoelectric properties of a two-dimensional MoS2 monolayer containing atomic defects are investigated using density functional theory. All the atomic defects have been found to exhibit endothermic nature. Electronic…

Mesoscale and Nanoscale Physics · Physics 2019-05-17 Munish Sharma , Ashok Kumar , P. K. Ahluwalia

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
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