☆ 4.8 Review

Emerging Nonplanar van der Waals Nanoarchitectures from 2D Allotropes for Optoelectronics

ADVANCED FUNCTIONAL MATERIALS (2023)

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Summary: A solvent-free method for preparing closely packed MoS2 nanoscrolls is reported in this work, showing superior optoelectronic properties compared to the organic solvent-assisted method. The MoS2 nanoscrolls prepared with water droplets exhibit stronger interlayer interaction, higher Young's modulus, and higher photosensitivity under blue, green, and red lasers than the ethanol-assisted ones.

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Summary: Defects in two-dimensional and layered materials can lead to different properties compared to perfect crystals. In the nanostructures of van der Waals crystals, the catalyst plays a crucial role in controlling the morphologies and facilitating fast growth, which results in emerging functionality.

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Summary: The fine control of chiral light-matter interaction at the nanoscale using designed metamaterial architecture is a cutting-edge craft with applications in biosensing, quantum, and classic nanophotonics. A novel concept of a 3D chiral metacrystal is proposed, where chiroptical properties are finely tuned by in-plane and out-of-plane diffractive coupling, showing potential for enantiomeric detection and integration with quantum emitters.

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Article Chemistry, Multidisciplinary

Superior Nonlinear Optical Response in Non-Centrosymmetric Stacking Edge-Rich Spiral MoTe2 Nanopyramids

Decai Ouyang et al.

Summary: A structurally novel spiral MoTe2 nanopyramids with unique and superior nonlinear optical (NLO) response has been reported. This nanostructure exhibits excellent second- and third-order NLO responses over a wide spectral range. The second-order nonlinear susceptibility of s-MoTe2 is estimated to be 1-2 orders of magnitude larger than most reported TMDs. This study not only provides a new way for designing the best NLO TMD structures, but also greatly promotes their practical applications in micro-nano NLO devices on chips in the future.

ADVANCED FUNCTIONAL MATERIALS (2022)

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Spiral Growth of Adlayer Graphene

Haibin Sun et al.

Summary: This study reports the growth and formation mechanism of adlayer graphene spirals, and unravels the mechanism of graphene onion growth, providing a method for the controlled growth of few-layer graphene.

ADVANCED MATERIALS (2022)

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Electronic Properties and Carrier Dynamics at the Alloy Interfaces of WS2xSe2-2x Spiral Nanosheets

Jiangbo Peng et al.

Summary: This study investigates the nonlinear optical and electronic properties, as well as carrier dynamics at the interfaces between WS and WSe domains in WS2xSe2-2x spiral nanosheets. Atomic STM images and STS maps reveal enhanced local density of states by electron scattering at the WS/WSe interfaces, providing insights for prospective applications.

ADVANCED MATERIALS (2022)

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Article Chemistry, Physical

Nanotubes from the Misfit Layered Compound (SmS)1.19TaS2: Atomic Structure, Charge Transfer, and Electrical Properties

M. B. Sreedhara et al.

Summary: Misfit layered compound nanotubes have attracted significant interest due to their rich chemistry and unique quasi-1D structure. By tuning the chemical and structural interplay between different sublayers and alloying of elements, the properties of these nanotubes can be engineered for desired performance. A study on SmS-TaS2 nanotubes reveals their complex structure at the atomic scale and confirms the charge transfer and filling phenomenon. The investigation provides insights into the properties and potential applications of misfit layered compound nanotubes.

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Plasmonically engineered light-matter interactions in Au-nanoparticle/MoS2 heterostructures for artificial optoelectronic synapse

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Summary: Optoelectronic synaptic elements based on transition metal dichalcogenides (TMDs) have limitations due to poor mobilities and weak light-matter interactions. However, by fabricating Au nanoparticle-coupled MoS2 heterostructures using chemical vapor deposition (CVD), enhanced light absorption and engineered plasmonic effects have been achieved, leading to optoelectronic devices with excellent synaptic behaviors and potential applications in neuromorphic electronics.

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Article Chemistry, Multidisciplinary

Excitonic absorption and defect-related emission in three-dimensional MoS2 pyramids

M. Negri et al.

Summary: This study demonstrates the excitonic absorption and cathodoluminescence emission of MoS2 micro-pyramids grown on SiO2 substrates by CVD. By utilizing CL emission, defect intra-gap states related to the pyramid edges were detected, with enhanced intensity observed at the pyramid basal vertices. Analysis of photoluminescence and absorption provided insights into the optical functionality of MoS2 pyramids, suggesting potential applications for other 3D structures within the 2D materials family.

NANOSCALE (2022)

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All-in-one two-dimensional retinomorphic hardware device for motion detection and recognition

Zhenhan Zhang et al.

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NATURE NANOTECHNOLOGY (2022)

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Light-matter coupling in large-area van der Waals superlattices

Pawan Kumar et al.

Summary: The study demonstrates the realization of excitonic metamaterials using atomically thin two-dimensional chalcogenide monolayers, enabling optical dispersion engineering and strong light-matter coupling. The engineered superlattice structures show evidence of exciton-polariton formation and high fidelity repeat units, paving the way for scalable designer optical metamaterials from atomically thin layers.

NATURE NANOTECHNOLOGY (2022)

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Dual-coupling-guided epitaxial growth of wafer-scale single-crystal WS2 monolayer on vicinal a-plane sapphire

Jinhuan Wang et al.

Summary: Epitaxial growth of two-inch single-crystal WS2 monolayer films on vicinal a-plane sapphire surfaces has been achieved, driven by a dual-coupling-guided mechanism resulting in unidirectional alignment of WS2 islands. The high quality of WS2 monolayers is evidenced by a photoluminescent circular helicity of about 55%, comparable to exfoliated WS2 flakes. The findings offer the opportunity to boost the production of wafer-scale single crystals of various two-dimensional materials on insulators for applications in integrated devices.

NATURE NANOTECHNOLOGY (2022)

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Strain-Plasmonic Coupled Broadband Photodetector Based on Monolayer MoS2

Donglin Lu et al.

Summary: A strain-plasmonic coupled 2D photodetector is designed to overcome the limitations of poor light absorption and small detection range in 2D photodetectors. The designed photodetector can broaden the detection range by 60 nm and increase the signal-to-noise ratio by 650%. It also demonstrates built-in potential and photo-switching behavior, constructing a self-powered homojunction photodetector. This approach provides a new strategy for designing high-performance and broadband 2D optoelectronic devices.

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Phosphorus-bridged ternary metal alloy encapsulated in few-layered nitrogen-doped graphene for highly efficient electrocatalytic hydrogen evolution

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Summary: The combination of non-noble metal core and carbon shell can enhance the activity and stability of materials through interface engineering. Heteroatomic doping can regulate the band structure of graphene and improve electrocatalytic performance. Converting the phosphorus-doped metal core-shell structure to phosphorus-doped ternary alloy core can enhance the hydrogen evolution reaction (HER) performance.

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Stacking Engineered Room Temperature Ferroelectricity in Twisted Germanium Sulfide Nanowires

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Summary: Recent experimental observation shows that introducing Eshelby twist in Germanium sulfide (GeS) nanowires can achieve ferroelectric order at room temperature, overcoming the limitation of inversion symmetry in monochalcogenides. This discovery is expected to have applications in various fields.

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Sihan Zhao et al.

Summary: This review summarizes experimental observations and theoretical perspectives related to interlayer interactions in 1D vdW moire superlattices, focusing on the unique optical features and physics in 1D DWNTs arising from the non-trivial strong interlayer coupling effect. Proposed and discussed are future directions and questions in probing the intriguing physical phenomena in 1D vdW moire superlattices, including correlated physics in different 1D moire systems beyond DWNTs.

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Alberto Ciarrocchi et al.

Summary: 2D semiconducting transition metal dichalcogenides are a promising class of materials that have unique properties, including large exciton binding energies. The ability to control interlayer excitons in van der Waals heterostructures provides opportunities for spin and valley degree of freedom manipulation in solid-state devices. This review discusses recent progress in device architectures and engineering techniques for tailored properties of interlayer excitons.

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Intertube Excitonic Coupling in Nanotube Van der Waals Heterostructures

Maria G. Burdanova et al.

Summary: Strong intertube excitonic coupling is demonstrated in 1D van der Waals heterostructures through the interaction of dipole-dipole Coulomb interactions and light-matter interactions. This leads to the creation of intertube biexcitons on short timescales and intertube excitons on longer timescales, which opens up new possibilities for multi-functional applications of these new nanoscale coaxial cables.

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Carrier Trapping in Wrinkled 2D Monolayer MoS2 for Ultrathin Memory

Rongjie Zhang et al.

Summary: The use of wrinkles in monolayer 2D semiconductors as controllable carrier trapping centers enables multilevel storage capability, high on/off ratios, and long retention times in memory devices. The study also reveals a wrinkle-based carrier trapping mechanism, offering a new approach for controlling carriers in ultra-thin memory devices and for in-memory calculations.

ACS NANO (2022)

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Micro Eddy Current Facilitated by Screwed MoS2 Structure for Enhanced Hydrogen Evolution Reaction

Meixia Su et al.

Summary: This study designs a screw pyramid MoS2 material to eliminate the interlayer potential barrier, facilitating the generation of micro eddy current and enhancing electrocatalytic activity.

ADVANCED FUNCTIONAL MATERIALS (2022)

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Nanopatterning Technologies of 2D Materials for Integrated Electronic and Optoelectronic Devices

Shenghong Liu et al.

Summary: This article reviews the recent development of nanopatterning technologies for 2D materials, discusses the need to advance these materials and devices to the industrial integrated circuit level, and explores the opportunities and challenges they present.

ADVANCED MATERIALS (2022)

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Tuning bandstructure of folded MoS2 through fluid dynamics

Zihan Zhao et al.

Summary: The study successfully demonstrated the tunable interlayer coupling of folded bi-layer MoS2 using a fluidic dynamic strategy, highlighting the importance of controlled folding direction and interlayer coupling. It was found that the fluid flow folded bi-layer MoS2 exhibited a different photoluminescence behavior compared to conventionally folded bi-layer MoS2, with a clear trajectory observed on the folded MoS2.

NANO RESEARCH (2022)

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Nanotubes from Ternary WS2(1-X)Se2X Alloys: Stoichiometry Modulated Tunable Optical Properties

M. B. Sreedhara et al.

Summary: Nanotubes of transition metal dichalcogenides offer unique properties and potential applications. Replacing sulfur by selenium can yield ternary nanotubes with strong modulation in absorption edge. Solid oxide nanowhiskers were used as a sacrificial template to obtain high yield nanotubes. The nanotubes showed modulated lattice structure and chemical composition, exhibiting strong light-matter interactions and non-linear optical properties.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022)

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Controllable Edge Epitaxy of Helical GeSe/GeS Heterostructures

Qi Wu et al.

Summary: This research demonstrates a new type of three-dimensional crystal structure based on van der Waals materials, utilizing the twist effect. The twist rate of the crystals can be tailored by adjusting the growth temperature. In addition, the introduction of heterostructures and moire superlattices enhances the electrical conductivity and photoresponse of the materials. These findings hold great potential for future applications in electronics and optoelectronics.

NANO LETTERS (2022)

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Uniform nucleation and epitaxy of bilayer molybdenum disulfide on sapphire

Lei Liu et al.

Summary: This study reports the successful nucleation of bilayer molybdenum disulfide (MoS2) on c-plane sapphire, achieving uniformity in the nucleation process. The design of atomic terrace height on c-plane sapphire allows for an edge-nucleation mechanism and the coalescence of MoS2 domains into continuous, centimeter-scale films. Field-effect transistor devices based on bilayer MoS2 channels show improved mobility and reduced variation compared to monolayer films.

NATURE (2022)

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Excitons in semiconductor moire superlattices

Di Huang et al.

Summary: This Review discusses recent progress in the field of exciton phenomena in semiconductor moire superlattices, including new exciton resonances, control of moire excitons, and probing correlated electron phenomena.

NATURE NANOTECHNOLOGY (2022)

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Resonance Couplings in Si@MoS2 Core-Shell Architectures

Tatsuki Hinamoto et al.

Summary: Heterostructures of transition metal dichalcogenides and optical cavities have great potential in quantum optics and electronics. In this study, Si@MoS2 core-shells were synthesized and MD mode splitting was experimentally demonstrated, showing evidence for resonance coupling. Additionally, higher-order systems with tunable properties were demonstrated through a dimer system of Si@MoS2.

SMALL (2022)

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Designing 1D correlated-electron states by non-Euclidean topography of 2D monolayers

Sunny Gupta et al.

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NATURE COMMUNICATIONS (2022)

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Special Topic: Two-Dimensional Functional Materials Van der Waals superlattices

Huaying Ren et al.

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Yea-Shine Lee et al.

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Qi Qian et al.

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NATURE (2022)

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Giant bulk photovoltaic effect driven by the wall-to-wall charge shift in WS2 nanotubes

Bumseop Kim et al.

Summary: The one-dimensional nanotubes of transition-metal dichalcogenides exhibit unique optoelectronic characteristics, including the generation of a large shift current. By studying the geometric properties of these nanotubes and the inter-wall charge shifting effect, we can gain a quantum mechanical understanding of this phenomenon. Double-wall or multi-wall WS2 nanotubes also show efficient bulk photovoltaic effect.

NATURE COMMUNICATIONS (2022)

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Tuning moire excitons and correlated electronic states through layer degree of freedom

Dongxue Chen et al.

Summary: In this study, the layer degree of freedom was introduced to the WSe2/WS2 moire superlattice by changing the number of layers of WSe2. Systematic changes in the optical spectra of moire excitons were observed, along with significant modifications in the energy resonances of moire excitons in multilayer WSe2/monolayer WS2 moire superlattice. The additional WSe2 layers also impacted the electronic correlation strength.

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Improving carrier mobility in two-dimensional semiconductors with rippled materials

Hong Kuan Ng et al.

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Rolling up of 2D nanosheets into 1D Nanoscrolls: Visible-Light-Activated chemiresistors based on surface modified indium selenide with enhanced sensitivity and stability

Lu Zhang et al.

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Strontium-deficient SrxCoO2-CoO2 nanotubes as a high ampacity and high conductivity material

Kankona Singha Roy et al.

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Switchable, Tunable, and Directable Exciton Funneling in Periodically Wrinkled WS2

Jubok Lee et al.

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Van der Waals Nanowires with Continuously Variable Interlayer Twist and Twist Homojunctions

Peter Sutter et al.

Summary: This study reports the realization of tunable twist in germanium(II) sulfide van der Waals nanowires, and presents a local spectroscopic method for detecting twist effects.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Atomic-Step-Induced Screw-Dislocation-Driven Spiral Growth of SnS

Yih-Ren Chang et al.

Summary: A novel technique is demonstrated to achieve a high percentage of spiral SnS flakes with superior control of nucleation position by introducing atomic steps on substrates. The study reveals that the spiral SnS structure exhibits centrosymmetric characteristic, indicating that single-spiral 2D materials with monolayer step height do not guarantee an inversion symmetry breaking structure.

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Ultra-thin shelled Cu2-xS/MoS2 quantum dots for enhanced electrocatalytic nitrogen reduction

Tianyao Jiang et al.

Summary: The study introduces a simple method for preparing Cu2-xS/MoS2 electrocatalysts, showing that by regulating the core/shell structure, the nitrogen adsorption capacity, surface area, and charge transfer rate can be enhanced to improve NRR performance.

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Room-temperature nonlinear Hall effect and wireless radiofrequency rectification in Weyl semimetal TaIrTe4

Dushyant Kumar et al.

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Band structure of MoSTe Janus nanotubes

August E. G. Mikkelsen et al.

Summary: The band structure of 1H-MoSTe Janus armchair and zigzag nanotubes was investigated, showing that curvature heavily influences the band structures while confinement effects are negligible. Furthermore, the band gap dependence on nanotube radius was analyzed, revealing significant changes in band gap of up to 0.5 eV. The high sensitivity of these changes is mainly attributed to the Mo d states in the conduction band, as observed through band edge positions and orbital projected density of states for different tube sizes.

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Broadband and Tunable Light Harvesting in Nanorippled MoS2 Ultrathin Films

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ACS APPLIED MATERIALS & INTERFACES (2021)

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One-Dimensional van der Waals Heterojunction Diode

Ya Feng et al.

Summary: The synthesis of one-dimensional van der Waals heterostructures enables new possibilities in electronics and optoelectronics, with different electrical characteristics induced by natural doping in semiconducting single-walled carbon nanotubes and molybdenum disulfide. Assembling semiconducting single-walled carbon nanotubes, insulating boron nitride nanotubes, and semiconducting molybdenum disulfide nanotubes creates a radial semiconductor-insulator-semiconductor heterojunction. Application of opposite potential polarity on these nanotubes leads to a rectifying effect.

ACS NANO (2021)

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Article Chemistry, Multidisciplinary

Tip-Induced Nano-Engineering of Strain, Bandgap, and Exciton Funneling in 2D Semiconductors

Yeonjeong Koo et al.

Summary: This study demonstrates dynamic nano-mechanical strain-engineering of naturally-formed wrinkles in a WSe2 monolayer using hyperspectral adaptive tip-enhanced PL (a-TEPL) spectroscopy. The results show that by dynamically adjusting the wrinkles at the nanoscale, exciton dynamics and emission properties can be tuned reversibly. This provides a new strategy for robust, tunable, and ultracompact nano-optical sources in atomically thin semiconductors.

ADVANCED MATERIALS (2021)

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Article Chemistry, Physical

MoS2 and WS2 Nanotubes: Synthesis, Structural Elucidation, and Optical Characterization

Sudarson S. Sinha et al.

Summary: This study presents advancements in the synthesis of MoS2 nanotubes, achieving narrower size distribution and better crystallinity. Analysis of X-ray diffraction data confirms the improved crystallinity and size of the nanotubes.

JOURNAL OF PHYSICAL CHEMISTRY C (2021)

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Article Chemistry, Multidisciplinary

Ultrathin Twisted Germanium Sulfide van der Waals Nanowires by Bismuth Catalyzed Vapor-Liquid-Solid Growth

Eli Sutter et al.

Summary: Research has successfully produced vdW nanowires of approximately 15 nm in diameter through VLS growth on Bi catalysts, maintaining long lengths and exhibiting non-equilibrium stacking that may lead to 1D ferroelectricity in the crystalline structure. These nanowires carry screw dislocations, remain chiral, and achieve very high twist rates.

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Article Multidisciplinary Sciences

Giant optical anisotropy in transition metal dichalcogenides for next-generation photonics

G. A. Ermolaev et al.

Summary: Optical anisotropy is crucial for efficient light manipulation, and this study reveals that MoS2 possesses a huge birefringence of 1.5 in the infrared range and 3 in the visible light.

NATURE COMMUNICATIONS (2021)

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Enhanced bulk photovoltaic effect in two-dimensional ferroelectric CuInP2S6

Yue Li et al.

Summary: While magnetism, hyperferroelectricity, and topological phases have been extensively studied in two-dimensional materials, direct experimental investigation of the bulk photovoltaic effect in such materials remains unexplored. The authors of this study discovered the bulk photovoltaic effect in the 2D ferroelectric CuInP2S6. This work highlights the potential use of ultrathin two-dimensional ferroelectric materials for third-generation photovoltaic cells, surpassing the efficiency limits set by traditional p-n junction or Schottky barrier interfaces.

NATURE COMMUNICATIONS (2021)

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Real-time GW-BSE investigations on spin-valley exciton dynamics in monolayer transition metal dichalcogenide

Xiang Jiang et al.

Summary: The study developed an ab initio nonadiabatic molecular dynamics method based on GW plus real-time Bethe-Salpeter equation for spin-resolved exciton dynamics. Investigations on MoS2 provided a comprehensive picture of spin-valley exciton dynamics and showed that e-h exchange interaction plays a dominant role in fast valley depolarization. The study demonstrates that e-h many-body effects are essential in understanding spin-valley exciton dynamics in transition metal dichalcogenides.

SCIENCE ADVANCES (2021)

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Article Chemistry, Multidisciplinary

Strained Epitaxy of Monolayer Transition Metal Dichalcogenides for Wrinkle Arrays

Jingwei Wang et al.

Summary: In this study, large-area monolayer TMDCs wrinkle arrays were fabricated directly on m-quartz substrate using strained epitaxy. By quenching the TMDCs after growth, the uniaxial thermal strain is released as wrinkle arrays along the quartz direction. The size of WS2 wrinkles can be finely modulated by changing the quenching temperature, inducing changes in optical properties and enhanced chemical reactivity.

ACS NANO (2021)

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Photoluminescence from Single-Walled MoS2 Nanotubes Coaxially Grown on Boron Nitride Nanotubes

Ming Liu et al.

Summary: Coaxial synthesis of single-walled and multiwalled molybdenum disulfide (MoS2) nanotubes on boron nitride nanotubes (BNNTs) was achieved by removing single-walled carbon nanotubes (SWCNTs) from heteronanotubes. Single-walled MoS2 nanotubes exhibit direct bandgap structure around 6-7 nm diameter, with a transition from indirect to direct gap above 5.2 nm. Presence of SWCNTs in BNNTs and single-walled MoS2 nanotubes significantly quenches the PL signal.

ACS NANO (2021)

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Recent Advances in 2D Superconductors

Dong Qiu et al.

Summary: The emergence of superconductivity in 2D materials has attracted attention due to their unique physical properties. Researchers have made efforts to explore mechanisms behind the unexpected superconductivity phenomena by adjusting different physical parameters. Different types of 2D superconductivity are introduced in the article, along with a perspective towards the future of this field.

ADVANCED MATERIALS (2021)

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Article Chemistry, Physical

Tunable Layer Orientation and Morphology in Vapor-Liquid-Solid Growth of One-Dimensional GeS van der Waals Nanostructures

Eli Sutter et al.

Summary: The crystal structure of van der Waals materials allows for control of layer orientation in VLS growth processes through additives to the VLS catalyst, resulting in changes in morphology and layer stacking geometry of 1D nanostructures. The addition of SnS to the GeS vapor leads to the formation of high-quality ribbonlike GeS nanostructures with different layer stacking geometries, demonstrating opportunities for tailoring the morphology of van der Waals nanostructures through modifications to the catalyst.

CHEMISTRY OF MATERIALS (2021)

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Magnetism and piezoelectricity in stable transition metal silicate monolayers

Kayahan Saritas et al.

Summary: Research on stable synthesis methods for 2D van der Waals single-layer materials with ferromagnetism and piezoelectricity has been conducted. Calculations showed that layered transition metal silicates possess the required symmetry for piezoelectricity and the ability to host transition metal cations.

PHYSICAL REVIEW MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Why do nanocrystals of 2D materials form nanotubes and why is that important?

Sudarson S. Sinha et al.

Summary: Pauling proposed the theory of naturally occurring layered alumo(magnesium)silicates (asbestos) minerals in 1930, and later chrysotile and hallyosites nanotubes were discovered in 1950 with the advancement of transmission electron microscopy. The new mechanism for the formation of nanotubes from inorganic compounds with layered structure via seaming of chemically reactive rims was proposed, leading to the discovery of nanotubes like WS2, MoS2, GaSe and BN in subsequent years.

NANO TODAY (2021)

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Article Multidisciplinary Sciences

High-order superlattices by rolling up van der Waals heterostructures

Bei Zhao et al.

Summary: This study presents a straightforward approach to producing high-order van der Waals superlattices by rolling up van der Waals heterostructures, demonstrating the modulation of electronic band structure and dimensionality. It provides a rich material platform for both fundamental studies and technological applications, showcasing the potential for creating diverse mixed-dimensional van der Waals superlattices.

NATURE (2021)

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Article Optics

Giant enhancement of optical nonlinearity in two-dimensional materials by multiphoton-excitation resonance energy transfer from quantum dots

Hao Hong et al.

Summary: The study demonstrates that coating a sub-200-nm-thick quantum dot film on two-dimensional materials can significantly enhance their nonlinear optical responses by more than three orders of magnitude. This enhancement is driven by a non-trivial mechanism of multiphoton-excitation resonance energy transfer, where the quantum dots deliver their strongly absorbed multiphoton energy to the adjacent two-dimensional materials.

NATURE PHOTONICS (2021)

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Article Multidisciplinary Sciences

Seeded 2D epitaxy of large-area single-crystal films of the van der Waals semiconductor 2H MoTe2

Xiaolong Xu et al.

Summary: The study presents a method for synthesizing wafer-scale single-crystalline 2H MoTe2 semiconductors on an amorphous insulating substrate, with excellent uniformity and 100% device yield. The 2D single-crystalline film can serve as a template for further rapid epitaxy in a vertical manner.

SCIENCE (2021)

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Article Physics, Applied

Structural defects in transition metal dichalcogenide core-shell architectures

Jennifer G. DiStefano et al.

Summary: Curvature design can facilitate the introduction of defects into TMD crystals by bringing in rich structural defects through curved nanoparticle cores. High-resolution tools like TEM and STEM can directly characterize 2D materials. TMD shells often have different interlayer spacings with varied spatial distributions.

APPLIED PHYSICS LETTERS (2021)

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Article Engineering, Environmental

Shelling with MoS2: Functional CuS@MoS2 hybrids as electrocatalysts for the oxygen reduction and hydrogen evolution reactions

Avraham Bar-Hen et al.

Summary: The study investigated hybrid nanostructures of CuS particles with MoS2 layers, and identified an optimal structure with high electrochemical active surface area and fast charge transfer kinetics, showing excellent performance in reducing HER activity and also improvement in ORR.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Engineering, Electrical & Electronic

SWCNT@BNNT With 1D Van Der Waals Heterostructure With a High Optical Damage Threshold for Laser Mode-Locking

Zheyuan Zhang et al.

Summary: SWCNT@BNNT exhibits enhanced optical power tolerance and longer lifetime compared to pristine SWCNT, making it a promising candidate for high-power intensity applications.

JOURNAL OF LIGHTWAVE TECHNOLOGY (2021)

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Article Chemistry, Physical

Controllable Photoelectric Properties in Double-Wall MoS2 Nanotubes by the Flexoelectric Effect

Jiansheng Dong et al.

Summary: This study investigated the influence of spontaneous flexoelectric effect on the photoelectric properties of double-wall MoS2 nanotubes, finding that flexoelectricity can lead to a transition in band alignment type and improve power conversion efficiency as the diameter increases. The optimal power conversion efficiency of double-wall MoS2 nanotubes was found to be 5.25% at a diameter of 5.2 nm, which is 7 times higher than that of bilayer MoS2, suggesting that flexoelectricity can be an effective way to develop new types of photovoltaic devices.

JOURNAL OF PHYSICAL CHEMISTRY C (2021)

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Article Chemistry, Multidisciplinary

Chemical Etching of Screw Dislocated Transition Metal Dichalcogenides

Yuzhou Zhao et al.

Summary: Chemical etching can create novel structures and provide insights into the growth mechanisms of complex nanostructures. This study investigates the etching of screw dislocated WS2 and WSe2 nanostructures, revealing that edge orientations, layer stackings, and strain of screw dislocations influence the etching morphology evolution. Ab initio calculations and Monte Carlo simulations support the experimental observations and offer mechanistic insights into the etching process.

NANO LETTERS (2021)

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Article Chemistry, Multidisciplinary

Probing the Chiral Domains and Excitonic States in Individual WS2 Tubes by Second-Harmonic Generation

Heming Xia et al.

Summary: This study reports an optical SHG study on multiwalled WS2 nanotubes at the single-tube level, revealing multiple structural domains within a single nanotube and observing different chirality within the same tube. Additionally, excitonic states of individual WS2 nanotubes were observed using SHG excitation spectroscopy, overcoming challenges posed by the material's indirect band gap.

NANO LETTERS (2021)

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Article Multidisciplinary Sciences

Actively variable-spectrum optoelectronics with black phosphorus

Hyungjin Kim et al.

Summary: High-performance room-temperature infrared optoelectronic devices with actively variable spectra using black phosphorus demonstrate continuous and reversible tuning of operating wavelengths, as well as multiplexed nondispersive infrared gas sensing capabilities. This platform bridges a technological gap by combining active spectral tunability with high performance, offering a potential way to meet different requirements for emission and detection spectra in optoelectronic applications.

NATURE (2021)

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Article Nanoscience & Nanotechnology

Heteroepitaxial van der Waals semiconductor superlattices

Gangtae Jin et al.

Summary: The research utilizes metal-organic chemical vapor deposition to control the kinetics and achieve precise layer-by-layer stacking of transition metal dichalcogenides, enabling the formation of van der Waals superlattices with different TMDC MLs. By implementing atomic layer-by-layer epitaxial growth, a tunable two-dimensional vdW electronic system is generated, demonstrating valley-polarized carrier excitations.

NATURE NANOTECHNOLOGY (2021)

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Article Nanoscience & Nanotechnology

Moire trions in MoSe2/WSe2 heterobilayers

Xi Wang et al.

Summary: Researchers observed moire trions and their doping-dependent photoluminescence polarization in H-stacked MoSe2/WSe2 heterobilayers. As moire traps are filled with either electrons or holes, new sets of interlayer exciton photoluminescence peaks emerge with specific narrow linewidths. Circularly polarized photoluminescence reveals a switching polarization pattern as moire excitons transition from negatively charged to positively charged, driven by energy relaxation pathways during interlayer trion formation.

NATURE NANOTECHNOLOGY (2021)

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Article Nanoscience & Nanotechnology

Charge-order-enhanced capacitance in semiconductor moire superlattices

Tingxin Li et al.

Summary: This study explores the thermodynamic properties of correlated insulating states in MoSe2/WS2 moire superlattices by measuring the gate capacitance, revealing a series of incompressible states and anomalously large capacitance phenomenon. The anomalously large capacitance is mainly attributed to the Coulomb interaction between electrons and phase mixing of the charge-ordered states, with device geometry dependence.

NATURE NANOTECHNOLOGY (2021)

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Article Multidisciplinary Sciences

One-dimensional van der Waals heterostructures: Growth mechanism and handedness correlation revealed by nondestructive TEM

Yongjia Zheng et al.

Summary: This work focuses on synthesizing one-dimensional van der Waals heterostructures, where different atomic layers encase a single-walled carbon nanotube to form a crystalized structure. The unconventional growth process requires nucleation on a curved surface and shell-by-shell extension, sparking interest in understanding the formation mechanism. Through comprehensive studies using TEM, edge structures and crystal relationships are identified, revealing the importance of surface cleanliness and isolation for perfect 1D heterostructure formation. The correlation between the SWCNT template and BNNT crystals is also elucidated, providing insights into crystal growth on highly curved atomic substrates.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2021)

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Article Multidisciplinary Sciences

Asymmetric misfit nanotubes: Chemical affinity outwits the entropy at high-temperature solid-state reactions

M. B. Sreedhara et al.

Summary: The text discusses the significance and potential applications of asymmetric two-dimensional structures, the synthesis of asymmetric misfit layer superstructures, and the chemical selectivity and stability of these structures, providing insights for further research.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2021)

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Article Engineering, Electrical & Electronic

High-performance flexible nanoscale transistors based on transition metal dichalcogenides

Alwin Daus et al.

Summary: Flexible nanoscale FETs based on 2D semiconductors are fabricated by transferring transition metal dichalcogenides from rigid growth substrates to polyimide films with nano-patterned metal contacts. The approach allows for channel lengths down to 60 nm and on-state currents up to 470 mu A mu m(-1) at a drain-source voltage of 1 V, demonstrating comparable performance to flexible graphene and crystalline silicon FETs.

NATURE ELECTRONICS (2021)

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Article Chemistry, Physical

One-dimensional transition metal dichalcogenide lateral heterostructures

Jin-Wu Jiang

Summary: Researchers propose a one-dimensional lateral heterostructure based on transition metal dichalcogenide nanotubes, inspired by the success of one-dimensional van der Waals heterostructures. Molecular simulations show normal exponential distribution of radial misfit strain and abnormal strain distribution near the interface. Possible experiments for synthesizing this new type of heterostructure are discussed based on current experimental techniques.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2021)

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Article Materials Science, Multidisciplinary

Strain-gated nonlinear Hall effect in two-dimensional MoSe2/WSe2 van der Waals heterostructure

Hao Jin et al.

Summary: The study systematically investigates the nonlinear electric response in 1T'-phase MoSe2/WSe2 vdW heterostructure, revealing its large Berry curvature dipole and sensitivity to applied strain. The nonlinear Hall response in vdW heterostructure can be effectively manipulated and understood through charge transfer mechanisms within the interlayer region. These findings provide a fundamental understanding of the strain-gated nonlinear Hall effect in vdW heterostructures, which may offer insights for the design of novel high-frequency nanodevices.

PHYSICAL REVIEW B (2021)

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Article Chemistry, Physical

Spontaneous flexoelectricity and band engineering in MS2 (M = Mo, W) nanotubes

Jiansheng Dong et al.

Summary: This study investigates the effect of flexoelectricity on band engineering in TMD nanotubes, finding that the energy bandgap reduces and the polarization increases with decreasing diameter, leading to a bandgap transition in double-wall nanotubes.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2021)

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Article Materials Science, Multidisciplinary

Resonant interaction in chiral Eshelby-twisted van der Waals atomic layers

Pilkyung Moon

Summary: We investigate the electronic structures of chiral twisted van der Waals atomic layers, focusing on chiral twisted graphite (CTG), and find that each CTG can host infinitely many resonant states with screw rotational symmetry and reduced Brillouin zone; regardless of the twist angle, the energies and wave functions of the resonant states can be described in a universal form of a one-dimensional chain, exhibiting a clear optical selection rule for circularly polarized light.

PHYSICAL REVIEW B (2021)

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Article Materials Science, Multidisciplinary

Eshelby-twisted three-dimensional moire superlattices

Zhigang Song et al.

Summary: Research shows that the helical rotation in three-dimensional moire superlattices can lead to optical circular dichroism and chirality-specific nonlinear Hall effect, even in the absence of magnetization or magnetic field. Both of these phenomena can be reversed by changing the structural chirality.

PHYSICAL REVIEW B (2021)

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Review Chemistry, Multidisciplinary

Moire superlattices and related moire excitons in twisted van der Waals heterostructures

Yanping Liu et al.

Summary: Recent advances in moire superlattices and moire excitons have attracted attention in optoelectronics and materials research. However, lagging theoretical development and inefficient processing technologies limit their potential applications. Continued research is likely to lead to breakthroughs and innovations in solid-state physics and materials science.

CHEMICAL SOCIETY REVIEWS (2021)

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Review Chemistry, Multidisciplinary

Strong plasmon-exciton coupling in transition metal dichalcogenides and plasmonic nanostructures

Jiawei Sun et al.

Summary: This minireview presents recent progress in strong plasmon-exciton coupling in plasmonic-TMD hybrid structures, focusing on the plasmon-exciton coupling between excitons in TMDs and plasmons in single nanoparticles, nanoparticle-over-mirrors, and plasmonic arrays. The future prospects of strong plasmon-exciton coupling at few-excitons level and the nonlinear response of these hybrid structures in the strong coupling regime are also discussed.

NANOSCALE (2021)

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Review Physics, Applied

Engineering symmetry breaking in 2D layered materials

Luojun Du et al.

Summary: Symmetry breaking plays a significant role in determining physical phenomena and quantum phase transitions in 2D materials. Engineering symmetry breaking of 2D materials offers opportunities to tune physical properties and introduce new physics and technological innovations. Various approaches have been developed to engineer symmetry breaking in 2D materials, leading to new perspectives on applications and physics.

NATURE REVIEWS PHYSICS (2021)

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Article Nanoscience & Nanotechnology

3D Nest-Like Architecture of Core-Shell CoFe2O4@1T/2H-MoS2 Composites with Tunable Microwave Absorption Performance

Xiangyu Wang et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

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Article Chemistry, Multidisciplinary

Solving the MoS2 Nanotubes Synthetic Enigma and Elucidating the Route for Their Catalyst-Free and Scalable Production

Pallellappa Chithaiah et al.

ACS NANO (2020)

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Article Chemistry, Multidisciplinary

Fluidic Flow Assisted Deterministic Folding of Van der Waals Materials

Huan Zhao et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Chemistry, Physical

Chemically Modulating the Twist Rate of Helical van der Waals Crystals

Zixuan Fang et al.

CHEMISTRY OF MATERIALS (2020)

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Article Chemistry, Physical

Au@MoS2@WS2 Core-Shell Architectures: Combining Vapor Phase and Solution-Based Approaches

Jennifer G. DiStefano et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2020)

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Article Chemistry, Multidisciplinary

Mechanism of Extreme Optical Nonlinearities in Spiral WS2 above the Bandgap

Xiaopeng Fan et al.

NANO LETTERS (2020)

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Article Multidisciplinary Sciences

Localization and delocalization of light in photonic moire lattices

Peng Wang et al.

NATURE (2020)

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Article Chemistry, Physical

Bandgap tuning of two-dimensional materials by sphere diameter engineering

Mengqi Zeng et al.

NATURE MATERIALS (2020)

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Article Chemistry, Physical

Design of van der Waals interfaces for broad-spectrum optoelectronics

Nicolas Ubrig et al.

NATURE MATERIALS (2020)

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Article Multidisciplinary Sciences

One-dimensional van der Waals heterostructures

Rong Xiang et al.

SCIENCE (2020)

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Editorial Material Multidisciplinary Sciences

Nested hybrid nanotubes

Yury Gogotsi et al.

SCIENCE (2020)

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Article Chemistry, Multidisciplinary

Size-Dependent Control of Exciton-Polariton Interactions in WS2 Nanotubes

Sudarson S. Sinha et al.

SMALL (2020)

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Article Multidisciplinary Sciences

One-dimensional flat bands in twisted bilayer germanium selenide

D. M. Kennes et al.

NATURE COMMUNICATIONS (2020)

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Article Materials Science, Multidisciplinary

Geometrical and electronic properties of unstrained and strained transition metal dichalcogenide nanotubes

Shuntaro Oshima et al.

PHYSICAL REVIEW MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Enhanced In-Plane Thermal Conductance of Thin Films Composed of Coaxially Combined Single-Walled Carbon Nanotubes and Boron Nitride Nanotubes

Pengyingkai Wang et al.

ACS NANO (2020)

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Article Chemistry, Multidisciplinary

YS-TaS2 and YxLa1-xS-TaS2 (0 ≤ x ≤ 1) Nanotubes: A Family of Misfit Layered Compounds

Simon Hettler et al.

ACS NANO (2020)

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Article Chemistry, Multidisciplinary

Vapor-Liquid-Solid Growth and Optoelectronics of Gallium Sulfide van der Waals Nanowires

Eli Sutter et al.

ACS NANO (2020)

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Review Chemistry, Multidisciplinary

Hybridizing Plasmonic Materials with 2D-Transition Metal Dichalcogenides toward Functional Applications

Pavithra Sriram et al.

SMALL (2020)

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Article Chemistry, Physical

Strain Effect Enhanced Ultrasensitive MoS2 Nanoscroll Avalanche Photodetector

Wenjie Deng et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2020)

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Article Chemistry, Multidisciplinary

Ag@MoS2 Core-Shell Heterostructure as SERS Platform to Reveal the Hydrogen Evolution Active Sites of Single-Layer MoS2

Junze Chen et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2020)

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Article Chemistry, Multidisciplinary

Towards Exciton-Polaritons in an Individual MoS2 Nanotube

Dmitrii Kazanov et al.

NANOMATERIALS (2020)

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Article Chemistry, Multidisciplinary

Ultrafast Optoelectronic Processes in 1D Radial van der Waals Heterostructures: Carbon, Boron Nitride, and MoS2 Nanotubes with Coexisting Excitons and Highly Mobile Charges

Maria G. Burdanova et al.

NANO LETTERS (2020)

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Article Chemistry, Physical

Scrolling bilayer WS2/MoS2 heterostructures for high-performance photo-detection

Lin Wang et al.

NANO RESEARCH (2020)

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Article Chemistry, Multidisciplinary

Near-Unity Polarization of Valley-Dependent Second-Harmonic Generation in Stacked TMDC Layers and Heterostructures at Room Temperature

Danliang Zhang et al.

ADVANCED MATERIALS (2020)

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Article Physics, Multidisciplinary

Electrically Tunable Valley Dynamics in Twisted WSe2/WSe2 Bilayers

Giovanni Scuri et al.

PHYSICAL REVIEW LETTERS (2020)

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Article Materials Science, Multidisciplinary

Quaternary LnxLa(1-x)S-TaS2 nanotubes (Ln=Pr, Sm, Ho, and Yb) as a vehicle for improving the yield of misfit nanotubes

M. Serra et al.

APPLIED MATERIALS TODAY (2020)

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Article Chemistry, Multidisciplinary

Surface-Modified Ultrathin InSe Nanosheets with Enhanced Stability and Photoluminescence for High-Performance Optoelectronics

Qiaoyan Hao et al.

ACS NANO (2020)

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Article Chemistry, Multidisciplinary

Chirality-Dependent Second Harmonic Generation of MoS2 Nanoscroll with Enhanced Efficiency

Qingkai Qian et al.

ACS NANO (2020)

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Article Chemistry, Physical

Excitons in strain-induced one-dimensional moire potentials at transition metal dichalcogenide heterojunctions

Yusong Bai et al.

NATURE MATERIALS (2020)

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Article Chemistry, Physical

Correlated electronic phases in twisted bilayer transition metal dichalcogenides

Lei Wang et al.

NATURE MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Enhanced Thermoelectric Performance in Black Phosphorus Nanotubes by Band Modulation through Tailoring Nanotube Chirality

Xin Chen et al.

SMALL (2020)

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Article Multidisciplinary Sciences

Supertwisted spirals of layered materials enabled by growth on non-Euclidean surfaces

Yuzhou Zhao et al.

SCIENCE (2020)

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Article Chemistry, Multidisciplinary

QD/2D Hybrid Nanoscrolls: A New Class of Materials for High-Performance Polarized Photodetection and Ultralow Threshold Laser Action

Rapti Ghosh et al.

SMALL (2020)

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Review Optics

Electromagnetic chirality: from fundamentals to nontraditional chiroptical phenomena

Jungho Mun et al.

LIGHT-SCIENCE & APPLICATIONS (2020)

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Article Chemistry, Multidisciplinary

Direct Measurement of Folding Angle and Strain Vector in Atomically Thin WS2 Using Second-Harmonic Generation

Ahmed Raza Khan et al.

ACS NANO (2020)

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Review Chemistry, Multidisciplinary

Topology of transition metal dichalcogenides: the case of the core-shell architecture

Jennifer G. DiStefano et al.

NANOSCALE (2020)

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Article Materials Science, Multidisciplinary

Blue phosphorus nanoscrolls

Yitian Wang et al.

PHYSICAL REVIEW B (2020)

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Article Chemistry, Multidisciplinary

Room-Temperature Synthesis of 2D Janus Crystals and their Heterostructures

Dipesh B. Trivedi et al.

ADVANCED MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Double-Spiral Hexagonal Boron Nitride and Shear Strained Coalescence Boundary

Hyo Ju Park et al.

NANO LETTERS (2019)

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Article Multidisciplinary Sciences

Evidence for moire excitons in van der Waals heterostructures

Kha Tran et al.

NATURE (2019)

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Article Multidisciplinary Sciences

Van der Waals integration before and beyond two-dimensional materials

Yuan Liu et al.

NATURE (2019)

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Article Optics

Separation of valley excitons in a MoS2 monolayer using a subwavelength asymmetric groove array

Liuyang Sun et al.

NATURE PHOTONICS (2019)

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Article Chemistry, Multidisciplinary

Theoretical Design of Topological Heteronanotubes

Chen Hu et al.

NANO LETTERS (2019)

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Article Multidisciplinary Sciences

Chiral twisted van der Waals nanowires

Peter Sutter et al.

NATURE (2019)

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Article Chemistry, Physical

Atomic and electronic reconstruction at the van der Waals interface in twisted bilayer graphene

Hyobin Yoo et al.

NATURE MATERIALS (2019)

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Article Chemistry, Multidisciplinary

On-Chip Rolling Design for Controllable Strain Engineering and Enhanced Photon-Phonon Interaction in Graphene

Lu Wang et al.

SMALL (2019)

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Article Chemistry, Multidisciplinary

High-Performance Photodiode Based on Atomically Thin WSe2/MoS2 Nanoscroll Integration

Wenjie Deng et al.

SMALL (2019)

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Article Multidisciplinary Sciences

Enhanced intrinsic photovoltaic effect in tungsten disulfide nanotubes

Y. J. Zhang et al.

NATURE (2019)

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Article Multidisciplinary Sciences

Helical van der Waals crystals with discretized Eshelby twist

Yin Liu et al.

NATURE (2019)

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Article Multidisciplinary Sciences

Visualizing electrostatic gating effects in two-dimensional heterostructures

Paul V. Nguyen et al.

NATURE (2019)

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Article Multidisciplinary Sciences

Disorder-induced nonlinear Hall effect with time-reversal symmetry

Z. Z. Du et al.

NATURE COMMUNICATIONS (2019)

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Article Chemistry, Physical

Tunable piezoelectric nanogenerators using flexoelectricity of well-ordered hollow 2D MoS2 shells arrays for energy harvesting

Jin Kyu Han et al.

NANO ENERGY (2019)

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Article Multidisciplinary Sciences

Strain tolerance of two-dimensional crystal growth on curved surfaces

Kai Wang et al.

SCIENCE ADVANCES (2019)

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Article Chemistry, Multidisciplinary

Electrocatalysis on Edge-Rich Spiral WS2 for Hydrogen Evolution

Prasad V. Sarma et al.

ACS NANO (2019)

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Article Nanoscience & Nanotechnology

A room-temperature polariton light-emitting diode based on monolayer WS2

Jie Gu et al.

NATURE NANOTECHNOLOGY (2019)

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Article Optics

Resonant behavior of a single plasmonic helix

Katja Hoeflich et al.

OPTICA (2019)

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Article Chemistry, Multidisciplinary

Reversible MoS2 Origami with Spatially Resolved and Reconfigurable Photosensitivity

Weinan Xu et al.

NANO LETTERS (2019)

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Article Nanoscience & Nanotechnology

Valley-polarized exciton currents in a van der Waals heterostructure

Dmitrii Unuchek et al.

NATURE NANOTECHNOLOGY (2019)

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Article Chemistry, Multidisciplinary

CsPbI3 Nanotube Photodetectors with High Detectivity

Zhentao Du et al.

SMALL (2019)

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Article Multidisciplinary Sciences

Bottom-up growth of homogeneous Moire superlattices in bismuth oxychloride spiral nanosheets

Lulu Liu et al.

NATURE COMMUNICATIONS (2019)

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Article Multidisciplinary Sciences

Enhanced light-matter interaction in an atomically thin semiconductor coupled with dielectric nano-antennas

L. Sortino et al.

NATURE COMMUNICATIONS (2019)

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Article Materials Science, Multidisciplinary

Morphological control and kinetics in three dimensions for hierarchical nanostructures growth by screw dislocations

Yanhui Chu et al.

ACTA MATERIALIA (2019)

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Article Materials Science, Multidisciplinary

Electronic properties of Janus MoSSe nanotubes

Yu Feng Luo et al.

COMPUTATIONAL MATERIALS SCIENCE (2019)

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Article Chemistry, Multidisciplinary

Tubular 3D Resistive Random Access Memory Based on Rolled-Up h-BN Tube

Xiang Hou et al.

SMALL (2019)

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Article Optics

Direct observation of ultrafast plasmonic hot electron transfer in the strong coupling regime

Hangyong Shan et al.

LIGHT-SCIENCE & APPLICATIONS (2019)

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Article Chemistry, Multidisciplinary

Controlled Vapor Growth and Nonlinear Optical Applications of Large-Area 3R Phase WS2 and WSe2 Atomic Layers

Zhouxiaosong Zeng et al.

ADVANCED FUNCTIONAL MATERIALS (2019)

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Article Materials Science, Multidisciplinary

Robust circular polarization of indirect Q-K transitions in bilayer 3R-WS2

Luojun Du et al.

PHYSICAL REVIEW B (2019)

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Article Chemistry, Multidisciplinary

Tuning the electronic and magnetic properties of MoS2 nanotubes with vacancy defects

Yanmei Yang et al.

RSC ADVANCES (2019)

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Article Chemistry, Multidisciplinary

MoS2-capped CuxS nanocrystals: a new heterostructured geometry of transition metal dichalcogenides for broadband optoelectronics

Yuan Li et al.

MATERIALS HORIZONS (2019)

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Review Engineering, Electrical & Electronic

Two-dimensional spintronics for low-power electronics

Xiaoyang Lin et al.

NATURE ELECTRONICS (2019)

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Article Nanoscience & Nanotechnology

Transforming Monolayer Transition-Metal Dichalcogenide Nanosheets into One-Dimensional Nanoscrolls with High Photosensitivity

Xiangru Fang et al.

ACS APPLIED MATERIALS & INTERFACES (2018)

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Article Chemistry, Multidisciplinary

Two-Dimensional Pyramid-like WS2 Layered Structures for Highly Efficient Edge Second-Harmonic Generation

Xianqing Lin et al.

ACS NANO (2018)

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Article Chemistry, Multidisciplinary

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