Molecularly Crowding Electrolytes and Tailored Electrodes for High-performance Aqueous Mn-Ion Hybrid Micro-supercapacitors

Nano Energy, Год журнала: 2024, Номер unknown, С. 110610 - 110610

Опубликована: Дек. 1, 2024

Язык: Английский

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Manipulating Carrier Behavior by the Size Effect of Decoration in MoS₂ Photodetectors

Advanced Optical Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 4, 2025

Abstract As an eye‐catching 2D material, MoS 2 has tunable optical and electrical properties. However, the rapid recombination of electron‐hole pairs intrinsically significantly hinders performance improvement photodetectors. Achieving carrier manipulation to suppress is crucial challenging for Herein, we report three photodetectors decorated with platinum single atoms (Pt SAs), single‐layer clusters SCs), nanoclusters NCs) via impregnation method. Carrier in suppressed by growing Pt SAs, SCs, NCs. Furthermore, NCs have different effects on behavior due size effect disparate interactions . Among SA/MoS , SC/MoS NC/MoS devices, exhibits a responsivity (R) 1.44 × 10 A W −1 specific detectivity (D*) 1.07 Jones under 532 nm illumination power density 0.5 mW cm −2 This work will deepen understanding relationship between provide theoretical basis

Язык: Английский

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Ultrafast Formation of Microdroplet Arrays with Chemical Gradients for Label‐Free Determination of Enzymatic Reaction Kinetics

Small, Год журнала: 2025, Номер unknown

Опубликована: Фев. 17, 2025

Abstract High throughput assays including enzymatic reactions are usually conducted in multiwell plates and analyzed plate readers. This approach has limitations i) upscaling ii) the choice of reactions, as labeled compounds required. A technique is introduced to rapidly generate dense microdroplet arrays by stream shearing (MASS). The fluid delivered via a capillary onto glass that carries pattern hydrophilic spots surrounded hydrophobic coating. Moving shears off droplets from retained on spot. Arrays up 24 192 homogenous (coefficient variation: 2.9 %) with defined volumes 280 980 pL generated less than 22 min. Thereby, droplet content varied, fine chemical gradients obtained across plate, which both fluorescence microscopy matrix‐assisted laser desorption/ionization mass spectrometry (MALDI‐MS). method employed for label‐free kinetic studies an reaction. For cleavage angiotensin II‐fluorescein II‐converting enzyme, maximum reaction velocity ( v max ) 5.7 µ m min −1 determined Michaelis‐Menten constant K M 84.8 found. platform can be further upscaled biochemical required drug discovery protein engineering.

Язык: Английский

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Inorganic semiconducting nanostructures-based printed photodetectors

Applied Physics Reviews, Год журнала: 2025, Номер 12(1)

Опубликована: Март 1, 2025

Optoelectronic devices, such as photodetectors (PDs), are needed in many applications including high-speed optical communications, robotics, healthcare, and biomimetic visual systems, which require detection interaction using light. As a result, wide variety of PDs on planar substrates have been reported various light sensitive materials traditional micro-/nano-fabrication technologies. In recent years, considerable efforts devoted to developing with flexible form factors eco-friendly approaches. These resulted exploration degradable printed electronics resource-efficient route for manufacturing contain end-of-life issues. This paper reviews new advances, particularly focusing based inorganic (e.g., crystalline silicon, compound semiconductors, metal oxides, etc.) semiconductor nanostructures [e.g., Nanowires (NWs), Nanoribbons (NRs), etc.]. The advantages disadvantages bottom-up top-down methods explored realize the wet (solution-processable) dry printing assembly print substrates, discussed along their suitability applications. discussion is supported by comparative analysis terms key performance metrics responsivity, detectivity, ILight/IDark ratio, response speed, external quantum efficiency. comprehensive expected benefit researchers practitioners from academia industry interested field PDs.

Язык: Английский

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Achieving Ultra‐Low Dark Current in β‐Ga₂O₃ Photoconductive Photodetectors for Anti‐Interference Optical Human–Machine Interaction Systems via Gallium Interstitials Engineering

Small, Год журнала: 2025, Номер unknown

Опубликована: Апрель 21, 2025

Abstract Driven by the demand for high‐throughput data transmission, development of cost‐effective and highly sensitive photoconductive photodetectors has become imperative to advance optical communication systems, thereby playing a crucial role in realm human–machine interaction. This study presents β‐Ga 2 O 3 photodetector employed an anti‐interference interaction system that demonstrates superior responsivity minimized dark current, attributed strategic modulation intrinsic defects. Through first‐principles simulations, defect dynamics across various growth conditions are systematically elucidated, enabling precise synthesis films with markedly diminished shallow‐donor gallium interstitials. A super low current 4.15 × 10 −12 is achieved even under 40 V bias, accompanied high 2.26 A·W −1 detectivity realizing 1.14 14 Jones. Ultimately, systems robot arm control, which enables demonstrate excellent resistance random noise, facilitates integration more efficient algorithms. Consequently, achieves 88.46% reduction reading time 78.17% required storage space, demonstrating substantial potential cost‐effective, era Internet Things.

Язык: Английский

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Bulk anomalous photovoltaic induced pyro-phototronic effect in lead-free chiral perovskite for enhanced self-powered photodetection

Chinese Chemical Letters, Год журнала: 2025, Номер unknown, С. 111268 - 111268

Опубликована: Апрель 1, 2025

Язык: Английский

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A Novel Pathogen Detection System Combining a Nucleic Acid Extraction Biochip with a Perovskite Photodetector

Micromachines, Год журнала: 2025, Номер 16(5), С. 581 - 581

Опубликована: Май 15, 2025

The increasing spread of infectious diseases caused by pathogenic microorganisms underscores the urgent need for highly sensitive, portable, and rapid nucleic acid detection technologies to facilitate early diagnosis effective prevention. In this study, we developed a fluorescence-based platform that integrates microfluidic chip with an all-inorganic perovskite photodetector. system enables integrated operation extraction, purification, amplification on chip, combined real-time electrical signal readout via CsPbBr3 Experimental results indicate photodetector exhibits high responsivity at 530 nm, aligning well primary emission peak FAM. demonstrates strong linear correlation between photocurrent FAM concentration over range 0.01–0.4 μM (R2 = 0.928), low limit 0.01 excellent reproducibility across multiple measurements. Validation using standard solutions Escherichia coli samples confirmed system’s reliable linearity stability. This potential pathogen screening point-of-care diagnostic applications.

Язык: Английский

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High-Performance, Flexible Perovskite Photodetector Based on CsPbBr₃ Nanonet

IEEE Transactions on Electron Devices, Год журнала: 2023, Номер 70(12), С. 6435 - 6438

Опубликована: Окт. 31, 2023

By the assistance of single-layer polystyrene (PS) spheres, high-quality CsPbBr3 perovskite nanonet films are fabricated for construction flexible, self-powered photodetectors (PDs) with an ITO/SnO2/CsPbBr3/carbon structure. The flexible PDs exhibit superior device performances ON- OFF ratio approximately 2.58 $\times \,\,10^{{4}}$ , a linear dynamic range 102 dB, and responsivity (R) detectivity ( notation="LaTeX">$\text{D}^{\ast }$ ) values 0.15 A/W 3.70 \,\,10^{{11}}$ Jones, respectively. Moreover, our displays good light stability after 500 times bending. These results show reference value fabricating stable PDs.

Язык: Английский

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High-on/off ratio organic photodetectors via incorporating Kaolinite

Micro and Nanostructures, Год журнала: 2024, Номер 193, С. 207914 - 207914

Опубликована: Июнь 15, 2024

Язык: Английский

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In Situ Growth of MoS₂ Onto Co‐Based MOF Derivatives Toward High‐Efficiency Quantum Dot‐Sensitized Solar Cells

Advanced Science, Год журнала: 2024, Номер 11(42)

Опубликована: Сен. 16, 2024

Abstract Quantum dot sensitized solar cells (QDSCs) represent a promising third‐generation photovoltaic technology, boasting high theoretical efficiency of 44% and cost efficiency. However, their practical is constrained by reduced photovoltage ( V oc ) fill factor (FF). One primary reason the inefficient charge transfer elevated recombination rates at counter electrode (CE). In this work, novel CE composed titanium mesh loaded with Co,N─C@MoS 2 introduced for assembly QDSCs. The incorporation nanosized MoS enhances density catalytic sites, while Co,N─C component ensures conductivity provides substantial active surface area. Additionally, mesh's 3D structure serves as an effective electrical conduit, facilitating rapid electron from external circuit to composite. These improvements in activity, rate, stability significantly enhance performance optimized achieve groundbreaking power conversion (PCE) 16.39%, accompanied short‐circuit current J sc 27.26 mA cm −2 , 0.818 V, FF 0.735. results not only offer new strategy designing electrodes activity but also underscore application composite enhancing QDSC technology.

Язык: Английский

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