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Related papers: Localized defect states in MoS$_2$ monolayers: ele…

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With reduced degrees of freedom, structural defects are expected to play a greater role in two-dimensional materials in comparison to their bulk counterparts. In particular, mechanical strength, electronic properties, and chemical…

Materials Science · Physics 2016-04-05 Xiaolong Liu , Itamar Balla , Hadallia Bergeron , Mark C. Hersam

Semiconducting oxides possess a variety of intriguing electronic, optical, and magnetic properties, and native defects play a crucial role in these systems. In this study, we study the influence of native defects on these properties of…

Materials Science · Physics 2023-06-12 Poonam Sharma , Vikash Mishra , Alok Shukla

Two-dimensional (2D) transition-metal dichalcogenides (TMDC) are considered highly promising platforms for next-generation optoelectronic devices. Owing to its atomically thin structure, device performance is strongly impacted by a minute…

Mesoscale and Nanoscale Physics · Physics 2024-04-16 Sergey Trishin , Christian Lotze , Nils Krane , Katharina J. Franke

A detailed first-principle study has been performed to evaluate the electronic and optical properties of single-layer (SL) transition metal dichalcogenides (TMDCs) (MX${}_2$; M= transition metal such as Mo, W and X= S, Se, Te), in the…

Mesoscale and Nanoscale Physics · Physics 2017-07-05 M. A. Khan , Mikhail Erementchouk , Joshua Hendrickson , Michael N. Leuenberger

We use an atomistic approach to study the electronic properties of monolayer and bilayer black phosphorus in the vicinity of a charged defect. In particular, we combine screened defect potentials obtained from first-principles linear…

Materials Science · Physics 2021-12-21 Martik Aghajanian , Arash A. Mostofi , Johannes Lischner

Layered transition metal dichalcogenides display a wide range of attractive physical and chemical properties and are potentially important for various device applications. Here we report the electronic transport and device properties of…

Mesoscale and Nanoscale Physics · Physics 2014-01-21 Wenjuan Zhu , Tony Low , Yi-Hsien Lee , Han Wang , Damon B. Farmer , Jing Kong , Fengnian Xia , Phaedon Avouris

Two-dimensional (2D) compounds provide unique building blocks for novel layered devices and hybrid photonic structures. However, large surface-to-volume ratio in thin films enhances the significance of surface interactions and charging…

The anisotropy of the electronic transition is a well-known characteristic of low-dimensional transition-metal dichalcogenides, but their layer-thickness dependence has not been properly in- vestigated experimentally until now. Yet, it not…

Mesoscale and Nanoscale Physics · Physics 2016-03-23 Jinhua Hong , Kun Li , Chuanhong Jin , Xixiang Zhang , Ze Zhang , Jun Yuan

Potential applications of monolayer of transition metal dichalcogenides (TMDs) in optoelectronic and flexible devices are under heavy investigation. Although TMDs monolayers are highly robust to external mechanical fields, their electronic…

Computational Physics · Physics 2021-09-14 Mohammad Bahmani , Michael Lorke , Mahdi Faghihnasiri , Thomas Frauenheim

Quantum light sources in solid-state systems are of major interest as a basic ingredient for integrated quantum device technologies. The ability to tailor quantum emission through deterministic defect engineering is of growing importance…

High quality electrical contact to semiconducting transition metal dichalcogenides (TMDCs) such as $MoS_2$ is key to unlocking their unique electronic and optoelectronic properties for fundamental research and device applications. Despite…

Transition metal dichalcogenides (TMDCs) monolayers, as two-dimensional (2D) direct bandgap semiconductors, hold promise for advanced optoelectronic and photocatalytic devices. Interaction with three-dimensional (3D) metals, like Au,…

Mesoscale and Nanoscale Physics · Physics 2024-04-16 Tao Yang , Stephan Sleziona , Erik Pollmann , Eckart Hasselbrink , Peter Kratzer , Marika Schleberger , R. Kramer Campen , Yujin Tong

Layered transition metal dichalcogenides (TMDs) offer many attractive features for next-generation low-dimensional device geometries. Due to the practical and fabrication challenges related to in situ methods, the atomistic dynamics that…

Wrinkles and nanobubbles are an integral and often unavoidable part of integrating 2D van der Waals semiconductors into actual device architectures. Despite their ubiquitous nature, quantitative correlation between such spatially…

Materials Science · Physics 2026-04-01 Soumyadip Hazra , Sraboni Dey , Arijit Kayal , Narendra Shah , Renjith Nadarajan , Joy Mitra

Monolayer islands of molybdenum disulfide (MoS$_2$) on Au(111) form a characteristic moir\'e structure, leading to locally different stacking sequences at the S-Mo-S-Au interface. Using low-temperature scanning tunneling microscopy (STM)…

Mesoscale and Nanoscale Physics · Physics 2018-04-04 Nils Krane , Christian Lotze , Katharina J. Franke

The catalytic sites of MoS$_{2}$ monolayers towards hydrogen evolution are well known to be vacancies and edge-like defects. However, it is still very challenging to control the position, size, and defective areas on the basal plane of…

The remarkable properties of layered materials such as MoS2 strongly depend on their dimensionality. Beyond manipulating their dimensions, it has been predicted that the electronic properties of MoS2 can also be tailored by carefully…

Materials Science · Physics 2019-06-11 Miguel Tinoco , Louis Maduro , Sonia Conesa-Boj

Monolayer MoS$_2$ has emerged as an interesting material for nanoelectronic and optoelectronic devices. The effect of substrate screening and defects on the electronic structure of MoS$_2$ are important considerations in the design of such…

Materials Science · Physics 2018-09-05 Mit H. Naik , Manish Jain

Ultrathin transition metal dichalcogenides (TMDCs) of Mo and W show great potential for digital electronics and optoelectronic applications. Whereas early studies were limited to mechanically exfoliated flakes, the large-area synthesis of…

Defects are inevitably present in two-dimensional (2D) materials and usually govern their various properties. Here a comprehensive density functional theory-based investigation of 7 kinds of point defects in a recently produced {\gamma}…

Materials Science · Physics 2021-03-15 Andrey A. Kistanov , Vladimir R. Nikitenko , Oleg V. Prezhdo