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npj 2D Materials and Applications
Scopus
ISSN 2397-7132 · Nature Portfolio · 571 artikel di indeks
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Artikel Jurnal
Control of electrically and optically active structural disorder in 2D transition metal dichalcogenides
Abstract Structural disorder affects the electronic structures of 2D TMDs, offering active control of their electrical and optical properties. The control requires knowledge about the correlation between structure and properties, and also techniques for introducing and stabilizing the structural…
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Artikel Jurnal
Transition-selective photocurrents in Floquet-driven monolayer MoSe2
Abstract We demonstrate symmetry-selective control of nonlinear photoconductivity in monolayer MoSe2, where near-resonant, linearly polarized light induces transition-specific symmetry breaking and topological phase transitions without violating time-reversal symmetry. Combining Floquet theory with…
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Artikel Jurnal
Many-body electronic structure, self-doped double-exchange, and Hund metallicity in 1T-CrTe2 bulk and monolayer
Abstract The van der Waals (vdW) ferromagnet 1T-CrTe2 is an emerging spintronics platform, notable for its high Curie temperature (T C ) and intriguing transport properties. However, the fundamental interplay between the electron correlations and magnetism underlying its high T C still remains…
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Artikel Jurnal
Multi-stage Kalman filtering system for sensor fusion integrated with MoS2 memtransistor featuring 1024 conductance levels
Abstract Memtransistors, three-terminal devices that combine the functionalities of memristors and transistors, offer a promising route for analog computing through their non-volatile behavior, low power consumption, and gate-tunable control. These features make them particularly well-suited for…
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Artikel Jurnal
Enhancing plasmonic superconductivity in layered materials via dynamical Coulomb engineering
Abstract Conventional Coulomb engineering, through controlled manipulation of the environment, offers an effective route to tune the correlation properties of atomically thin van der Waals materials via static screening. Here we present tunable dynamical screening as a method for precisely…
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Artikel Jurnal
Linear and nonlinear optical response based on many-body G W-Bethe–Salpeter and Kadanoff–Baym approaches for two-dimensional layered semiconductors
Abstract The family of 2D layered semiconductors, including transition metal chalcogenides (TMCs), exhibits exceptional nonlinear optical properties. The energetically most favorable crystal ordering for nonlinear response is the AB layer stacking, which breaks central inversion symmetry for an…
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Artikel Jurnal
Dissecting intervalley coupling mechanisms in monolayer transition metal dichalcogenides
Abstract Monolayer (1L) transition metal dichalcogenides (TMDs) provide a unique opportunity to control the valley degree of freedom of optically excited charge carriers due to the spin-valley locking effect. However, a unified picture of competing intervalley coupling processes in 1L-TMDs is…
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Artikel Jurnal
Robust conductivity of goldene against structural defects and mechanical deformations: a first-principles study
Abstract A key challenge in flexible electronics is identifying materials that maintain high electrical conductivity under mechanical deformations. Low-dimensional materials like graphene offer substantial benefits due to their mechanical robustness and high conductivity. However, their electrical…
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Artikel Jurnal
Unconventional bright ground-state excitons in monolayer TiI2 from first-principles calculations
Abstract Based on ab initio screened configuration interaction calculations we find that TiI2 has a bright exciton ground state and identify two key mechanisms that lead to this unprecedented feature among transition metal dichalcogenides. First, the spin-orbit induced conduction band splitting…
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Artikel Jurnal
Electron-beam charge injection for contactless small-angle alignment in graphene/hBN heterostructures
Abstract The ability to dynamically control the relative orientation of layers in two-dimensional (2D) van der Waals (vdW) heterostructures represents a critical step toward the realization of reconfigurable nanoscale devices. Existing actuation methods often rely on mechanical contact, complex…
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Artikel Jurnal
Thickness-modulated crystal structure and band gap of 2D SnSe deposited by molecular beam epitaxy
Abstract Realizing the potential for 2D SnSe optoelectronics requires understanding the thickness dependence of structure, defects, and optical properties. We investigate the thickness-dependent crystal structure, band gap, and carrier lifetime of SnSe films deposited by molecular beam epitaxy…
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Artikel Jurnal
Facile molten salt synthesis of bimetallic NiFe-Ti3C2Tx MXene nano-hybrid as an efficient oxygen evolution electrocatalyst
Abstract Non-precious metal OER electrocatalysts are critical for developing efficient electrochemical hydrogen production. Recently, MXenes have increasingly been applied as conductive electrocatalyst support materials. Here, an HF-free and scalable one-step synthesis, based on Lewis acid molten…
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Artikel Jurnal
Fast interlayer energy transfer from the lower bandgap MoS2 to the higher bandgap WS2
Abstract Energy transfer (ET) is a dipole-dipole interaction, mediated by the virtual photon. Traditionally, ET happens from the higher (donor) to lower bandgap (acceptor) material. However, in some rare instances, ET can happen from the lower-to-higher bandgap material, depending on the strong…
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Artikel Jurnal
Towards atomically-thin regime in bulk 4H-NbSe2 with interlayer disorder
Abstract Polytypism in transition metal dichalcogenides (TMDs) introduces an additional degree of freedom for tailoring the electronic properties of layered van der Waals materials. Polytypes with larger unit cells, spanning four or six layers, can be viewed as natural homostructures, since their…
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Artikel Jurnal
Hexagonal boron nitride: interlayer with atomic scale precision for interface engineering in functional materials and devices
Abstract Atomically thin hexagonal boron nitride (hBN) interlayers control interactions between electronic states of interfacing materials by modulating their separation at the atomic scale. These interlayers regulate interactions, whose strengths vary with distance. Here, we review how hBN is…
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Artikel Jurnal
The two conduction bands of monolayer CrSBr on Au
Abstract We report the electronic structure of monolayer CrSBr exfoliated onto mica template-stripped gold substrates. Angle-resolved photoemission spectroscopy reveals charge transfer from the substrate, populating the conduction band of monolayer CrSBr, accompanied by a pronounced reduction in…
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Artikel Jurnal
ROS-driven antibacterial mechanisms of multi-metallic (TiVNbMo)₄C₃T x MXene
Abstract Multi-metallic MXenes such as entropy-stabilized (TiVNbMo)4C3T x exhibit synergistic electronic and redox properties beyond those of monometallic MXenes, yet their antibacterial behavior in aqueous environments remains poorly understood. In particular, how multi-elemental composition…
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Artikel Jurnal
Oxygen passivation driven defect states healing in monolayer MoSe2 for ultra-high photoresponsivity
Abstract Heterostructure-based photodetectors often face performance limitations due to strong interlayer coupling and restricted band modulation. An alternative approach is engineering doped 2D TMDs, particularly through hole doping, to achieve tunable electronic and optoelectronic properties. In…
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Artikel Jurnal
Engineered Ti₃C₂ MXene nanosystems for macrophage-targeted therapy of metabolic dysfunction-associated steatohepatitis
Abstract Macrophages are central to the pathogenesis of metabolic dysfunction-associated steatohepatitis (MASH), a condition driven by persistent inflammation and elevated reactive oxygen species (ROS). Nanotherapeutic strategies that simultaneously suppress inflammation and eliminate ROS thus hold…
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Artikel Jurnal
Influence of composition, thickness, and 2D layer coupling on electrochemical CO2 reduction
Abstract The electrochemical reduction of CO2 to value-added carbon products is hindered by low Faradaic efficiency and competing hydrogen evolution. Here, we address this challenge by investigating how metal and C–N composition, layer thickness, and 2D heterostructure coupling influence CO2…