Recent Advances in the Growth Strategies, Multifunctional Properties, and Emerging Applications of Two‐Dimensional Non‐van der Waals Bismuth Oxychalcogenides and Prospective Heterostructures

Small Structures, Journal Year: 2024, Volume and Issue: 5(8)

Published: Jan. 29, 2024

With the advent of two‐dimensional (2D) van der Waals (vdW) materials, many non‐van (nvdW) materials have been synthesized and are being exploited for novel applications. Bismuth oxychalcogenides (Bi 2 O X; X is S, Se, Te), a nvdW series with moderate band gap semiconductors, possess high carrier mobility air stability. The layers in Bi stay formal bond, giving rise to distinct structural, optical, thermal, electronic properties different from conventional vdW materials. Herein, these properties, their synthesis, transfer methods 2D examined. photodetector application heterostructure (HS) surveyed special attention Se. Beyond photodetector, other emerging fields, such as gas‐bio sensors, optoelectronic imaging, integrated memory, solar cells, photothermal technology looked over. Based on ongoing research challenges, strategies future innovations presented basics miniaturized In view offsets type HS 94 vdW‐nvdW sets proposed. This review will guide studies meet increasing demands multifunctional applications laboratory industrial scale.

Language: Английский

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Low-dimensional van der Waals materials for linear-polarization-sensitive photodetection: materials, polarizing strategies and applications

Materials Futures, Journal Year: 2023, Volume and Issue: 3(1), P. 012301 - 012301

Published: Sept. 14, 2023

Abstract Detecting light from a wealth of physical degrees freedom (e.g. wavelength, intensity, polarization state, phase, etc) enables the acquirement more comprehensive information. In past two decades, low-dimensional van der Waals materials (vdWMs) have established themselves as transformative building blocks toward lensless optoelectronics, which is highly beneficial for optoelectronic system miniaturization. This review provides overview on recent development vdWM polarized photodetectors. To begin with, exploitation pristine 1D/2D vdWMs with immanent in-plane anisotropy and related heterostructures filterless polarization-sensitive photodetectors introduced. Then, we systematically epitomized various strategies to induce photosensitivity enhance degree photodetectors, including quantum tailoring, construction core–shell structures, rolling engineering, ferroelectric regulation, strain etc, emphasis fundamental principles. Following that, ingenious applications based multiplexing optical communications enhanced-contrast imaging, been presented. end, current challenges along future prospects this burgeoning research field underscored. On whole, depicts fascinating landscape next-generation high-integration multifunctional systems.

Language: Английский

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Quantum tailoring for polarization-discriminating Bi₂S₃ nanowire photodetectors and their multiplexing optical communication and imaging applications

Materials Horizons, Journal Year: 2023, Volume and Issue: 10(9), P. 3369 - 3381

Published: Jan. 1, 2023

Programmable optoelectronic dichroism has been demonstrated by quantum tailoring of Bi 2 S 3 nanowire photodetectors, and multiplexing optical communications as well polarimetric imaging have developed.

Language: Английский

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2D Free‐Standing GeS_1−xSe_x with Composition‐Tunable Bandgap for Tailored Polarimetric Optoelectronics

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(28)

Published: April 26, 2024

Abstract Germanium‐based monochalcogenides (i.e., GeS and GeSe) with desirable properties are promising candidates for the development of next‐generation optoelectronic devices. However, they still stuck challenges, such as relatively fixed electronic band structure, unconfigurable characteristics, difficulty in achieving free‐standing growth. Herein, it is demonstrated that two‐dimensional (2D) 1−x Se x (0 ≤ 1) nanoplates can be grown by low‐pressure rapid physical vapor deposition (LPRPVD), fulfilling a continuously composition‐tunable optical bandgap structure. By leveraging synergistic effect composition‐dependent modulation growth, ‐based devices exhibit significantly configurable hole mobility from 6.22 × 10 −4 to 1.24 cm 2 V −1 s⁻ 1 tunable responsivity 8.6 311 A W (635 nm), varies 0 1. Furthermore, polarimetric sensitivity tailored 4.3 (GeS 0.29 0.71 ) 1.8 (GeSe) benefiting alloy engineering. Finally, imaging capability also show application potential nanoplates. This work broadens functionality conventional binary materials motivates

Language: Английский

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Two-dimensional layered material photodetectors: what could be the upcoming downstream applications beyond prototype devices?

Nanoscale Horizons, Journal Year: 2024, Volume and Issue: 9(10), P. 1599 - 1629

Published: Jan. 1, 2024

The applications of 2D material photodetectors in extensive fields, including imaging, health monitoring, tracking, logic operation, ultraviolet communications, automatic driving, and acoustic signal detection, have been introduced.

Language: Английский

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In Situ Construction of Flexible Low‐Dimensional van der Waals Material Photodetectors

Advanced Physics Research, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Abstract By virtue of the excellent flexibility, conformability, portability, and aesthetics, wearable photodetectors have attracted worldwide research enthusiasm over past decade. However, traditional bulk covalent semiconductors are difficult to be applied due their pronounced rigidity. Profiting from self‐passivated surface, carrier mobility, strong light‐harvesting ability, low‐dimensional van der Waals materials (LDvdWMs) shown immense potential for application in optoelectronic devices. Nevertheless, preparation flexible through exfoliation/transfer or solution methods has suffered severe drawbacks spanning low production yield, contamination, uncompetitive device properties. Therefore, researchers been committed exploring alternative strategies. In response this, current review systematically summarizes latest advancements directly constructing LDvdWM on substrates, including developing low‐melting‐point targeted materials, electron‐beam‐enabled crystallization, photonic modified chemical vapor deposition, pulsed‐laser with elaboration fundamental mechanisms enabling situ deposition LDvdWMs. Finally, tricky challenges standing way this field epitomized solutions addressing them proposed. On whole, underscores distinctive pathways development photodetectors, which probably usher next‐generation technologies.

Language: Английский

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New paradigms of 2D layered material self-driven photodetectors

Nanoscale, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

The burgeoning initiatives implementing self-driven 2D layered material photodetectors have been presented, heralding new avenues for the next-generation integrated and miniaturized optoelectronic industry.

Language: Английский

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1D Sb₂S₃ with Strong Mie Resonance Toward Highly‐Sensitive Polarization‐Discriminating Photodetection and Its Application in High‐Temperature‐Proof Imaging and Dual‐Channel Communications

Advanced Optical Materials, Journal Year: 2023, Volume and Issue: 12(5)

Published: Nov. 5, 2023

Abstract High‐speed and sensitive UV–Vis photodetectors have been constructed based on a typical 1D van der Waals material, antimony sulfide (Sb 2 S 3 ). Impressively, the Sb nanowire photodetector demonstrates pronounced photosensitivity exhibiting remarkable on/off ratio of ≈2800 under power density 318 mW cm −2 . In addition, high responsivity, an outstanding detectivity, short response/recovery time 270 A W −1 , 4.37 × 10 13 Jones, 10/12 ms are achieved. The competitive is associated with intrinsic Mie resonance nanowire, which conducive to enhancing coupling photosensitive channel incident light. By virtue unique structural nature in both extrinsic perspectives, manifest distinct polarization‐discriminating photoresponse optimal dichroic reaching ≈7.2. Moreover, demonstrate stable from room temperature 160 °C, these nanodevices durable against long‐term high‐temperature heating treatment at up 300 °C. Taking advantage excellent thermal robustness, high‐temperature‐proof optoelectronic imaging dual‐channel optical communication applications demonstrated low‐dimensional materials. On whole, this study provides new option for advanced multifunctional system extreme working environments.

Language: Английский

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Microscopic nonlinear optical activities and ultrafast carrier dynamics in layered AgInP₂S₆

Photonics Research, Journal Year: 2024, Volume and Issue: 12(4), P. 691 - 691

Published: Jan. 24, 2024

Since the emergence of graphene, transition metal dichalcogenides, and black phosphorus, two-dimensional materials have attracted significant attention driven development fundamental physics optoelectronic devices. Metal phosphorus trichalcogenides ( MPX 3 ), due to their large bandgap 1.3–3.5 eV, enable extension applications visible ultraviolet (UV) wavelengths. Micro-Z/I-scan (μ-Z/I-scan) micro-pump-probe (μ-pump-probe) setups were used systematically investigate third-order nonlinear optical properties ultrafast carrier dynamics representative material AgInP 2 S 6 . UV-visible absorption spectra density functional theory (DFT) calculations revealed a quantum confinement effect, in which decreased with increasing thickness. The two-photon (TPA) effect is exhibited under excitation both 520 1040 nm femtosecond pulses, where TPA coefficient decreases as thickness increases. In contrast, saturation intensity exhibits opposite behavior that more likely occur excitation. After valence band electrons undergo photon transitions conduction band, non-equilibrium carriers relax through non-radiative defect-assisted recombination. These findings provide comprehensive understanding response process are valuable reference for

Language: Английский

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Emerging Schemes for Advancing 2D Material Photoconductive-Type Photodetectors

Materials, Journal Year: 2023, Volume and Issue: 16(23), P. 7372 - 7372

Published: Nov. 27, 2023

By virtue of the widely tunable band structure, dangling-bond-free surface, gate electrostatic controllability, excellent flexibility, and high light transmittance, 2D layered materials have shown indisputable application prospects in field optoelectronic sensing. However, commonly suffer from weak absorption, limited carrier lifetime, pronounced interfacial effects, which led to necessity for further improvement performance material photodetectors make them fully competent numerous requirements practical applications. In recent years, researchers explored multifarious methods a variety perspectives. To promote development innovation photodetectors, this review epitomizes latest research progress improving including crystalline quality, engineering, interface passivation, harvesting enhancement, channel depletion, shrinkage, selective trapping, with focus on their underlying working mechanisms. end, ongoing challenges burgeoning are underscored, potential strategies addressing been proposed. On whole, sheds upcoming future.

Language: Английский

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