Recent Advances in Layered MX2-Based Materials (M = Mo, W and X = S, Se, Te) for Emerging Optoelectronic and Photo(electro)catalytic Applications

Catalysts, Journal Year: 2024, Volume and Issue: 14(6), P. 388 - 388

Published: June 17, 2024

Transition metal dichalcogenides (TMDCs), represented by MX2 (where M = Mo, W and X S, Se, Te), more recently, their moiré superlattices (i.e., formed superimposing layers of TMDCs with different rotation angles) have attracted considerable interest due to excellent physical properties unique nanoscale functionalities. Compared graphene, the literature indicates that offer a competitive advantage in optoelectronic technologies, primarily owing compositionally controlled non-zero bandgap. These two-dimensional (2D) nanostructured single or multiple exhibit remarkable differ from bulk counterparts. Moreover, stacking TMDC monolayers also forms heterostructures introduces quantum effects extraordinary electronic properties, which is particularly promising for next-generation devices photo(electro)catalytic applications. Therefore, this review, we highlight new possibilities formation 2D/2D MX2-based materials patterns discuss main critical challenges related synthesis large-scale applications layered composites spur significant advances emerging

Language: Английский

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Two-Dimensional Organic–Inorganic van der Waals Hybrids

Chemical Reviews, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 18, 2024

Two-dimensional organic-inorganic (2DOI) van der Waals hybrids (vdWhs) have emerged as a groundbreaking subclass of layer-stacked (opto-)electronic materials. The development 2DOI-vdWhs via systematically integrating inorganic 2D layers with organic crystals at the molecular/atomic scale extends capabilities traditional vdWhs, thanks to their high synthetic flexibility and structural tunability. Constructing an hybrid interface atomic precision will unlock new opportunities for generating unique interfacial transport properties by combining strengths layers, thus allowing us satisfy growing demand multifunctional applications. Here, this review provides comprehensive overview latest advancements in chemical synthesis, characterization, numerous applications 2DOI-vdWhs. Firstly, we introduce chemistry physical recently rising (O2DCs), which feature crystalline nanostructures comprising carbon-rich repeated units linked covalent/noncovalent bonds exhibit strong in-plane extended π-conjugation weak interlayer vdWs interaction. Simultaneously, representative (I2DCs) are briefly summarized. After that, strategies be summarized, including synthesizing single-component O2DCs dimensional control vdWhs I2DCs. With these approaches, dimension, stacking modes, composition highlighted. Subsequently, special focus given on discussion optical electronic materials closely relevant structures, so that can establish general structure-property relationship In addition properties, devices such transistors, photodetectors, sensors, spintronics, neuromorphic well energy discussed. Finally, provide outlook discuss key challenges future development. This aims foundational understanding inspire further innovation next-generation transformative technological potential.

Language: Английский

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Advances in 2D heterostructures for quantum computing applications: A review

Inorganic Chemistry Communications, Journal Year: 2025, Volume and Issue: unknown, P. 113980 - 113980

Published: Jan. 1, 2025

Language: Английский

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A Variability‐Aware Behavioral Model of Monolayer MoS₂ RRAM for Tunable Stochastic Sources

Advanced Theory and Simulations, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 16, 2025

Abstract Stochastic switching in resistive random‐access memories (RRAMs), while presenting challenges digital memory applications, can be leveraged beyond von Neumann's stochastic computing and hardware security applications. In this regard, it is crucial to identify model RRAMs where microscopic events enable sizeable tunable variability macroscopic device characteristics. chalcogen vacancy‐mediated multifilamentary consisting of a multitude hotspots monolayer transition metal dichalcogenide (TMDCs) promising candidates for high‐quality, sources. work, an efficient physics‐based developed capture the behavior MoS 2 RRAMs. The origin stochasticity, arising from clusters sulfur vacancies transforming into metallic hotspots, modeled using kinetic Monte Carlo method. rate equations designed physics abrupt SET gradual RESET processes provide excellent fit experimental data, allowing extract key material parameters. calibrated then employed explore multiple non‐volatile resistance states process, area scalability trends cycle‐to‐cycle C2C over 100k cycles. Furthermore, statistical distribution HRS LRS large tunability demonstrated stop voltage RESET. Finally, that these devices are as bit stream generators applications with accuracy values comparable ideal source. It envisioned work will induce significant interest deployment 2D materials‐based high‐quality

Language: Английский

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High-Performance Broadband Mixed-Dimensional Phototransistors Based on the Boron Nitride Quantum Dots/MoSe₂ Heterostructure with Enhanced UV Sensitivity

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Two-dimensional (2D) semiconductors have been of great interest in phototransistors recent years due to their unique optoelectronic and electronic properties. However, discernible spectral range the efficiency light absorption are usually restricted. Here, we present based on mixed-dimensional heterostructures formed by zero-dimensional (0D) boron nitride quantum dots (BNQDs) molybdenum diselenide (MoSe2), which high responsivity (R), specific detectivity (D*), external (EQE), especially ultraviolet (UV) range. The heterostructure showed a 440% increase R at 375 nm (from 5.6 24.7 A/W) 260% D* 3.3 8.7 × 1011 Jones) compared bare MoSe2 wavelength bias 1 V. A series characterization comparison experiments show that charge transfer BNQDs/MoSe2 results photogating effect optical gain. Meanwhile, high-performance exhibit broadband imaging capabilities thus hold promise for ultrasensitive detection, neuromorphic visual sensing, in-sensor computing applications.

Language: Английский

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Neuromorphic Light‐Responsive Organic Matter for in Materia Reservoir Computing

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 13, 2025

Abstract Materials able to sense and respond external stimuli by adapting their internal state process store information, represent promising candidates for implementing neuromorphic functionalities brain‐inspired computing paradigms. In this context, systems based on light‐responsive materials enable the use of light as information carrier, allowing emulate basic functions human retina. work it is demonstrated that optically‐induced molecular dynamics in azopolymers can be exploited neuromorphic‐type data processing analog domain at matter level (i.e., materia ). Besides showing storage, adaptiveness these enables implementation synaptic including short‐term memory, long‐term visual memory. Results show allow event detection motion perception, enabling physical schemes requiring real‐time analysis spatio‐temporal inputs. Furthermore, shown light‐induced unconventional paradigm denoted reservoir computing. This underscores potential developing adaptive, intelligent photo‐responsive mimic some complex abilities biological systems.

Language: Английский

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Optimization of high-quality YBa2Cu3O7-δ superconducting nanowire fabrication by post-thermal annealing

Rare Metals, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 6, 2024

Language: Английский

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3D/2D lead-free halide perovskite CsSnBr3/MoX (X = Se2, SSe, S2) heterostructures for high-efficiency solar cell: Interface engineering strategies and transition of band alignments

Applied Surface Science, Journal Year: 2024, Volume and Issue: 680, P. 161448 - 161448

Published: Oct. 6, 2024

Language: Английский

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