Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1002, P. 175409 - 175409
Published: July 3, 2024
Language: Английский
Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)
Published: March 11, 2023
Abstract The frequent outbreak of global infectious diseases has prompted the development rapid and effective diagnostic tools for early screening potential patients in point-of-care testing scenarios. With advances mobile computing power microfluidic technology, smartphone-based health platform drawn significant attention from researchers developing devices that integrate optical detection with artificial intelligence analysis. In this article, we summarize recent progress these platforms, including aspects chips, imaging modalities, supporting components, software algorithms. We document application platforms terms objects, molecules, viruses, cells, parasites. Finally, discuss prospects future platforms.
Language: Английский
Citations
114
Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 16(1)
Published: April 2, 2024
Abstract With the increasing demand for terahertz (THz) technology in security inspection, medical imaging, and flexible electronics, there is a significant need stretchable transparent THz electromagnetic interference (EMI) shielding materials. Existing EMI materials, like opaque metals carbon-based films, face challenges achieving both high transparency efficiency (SE). Here, wrinkled structure strategy was proposed to construct ultra-thin, stretchable, MXene which possesses isotropous wrinkles (height about 50 nm) periodic 500 nm). Compared flat film, film (8 demonstrates remarkable 36.5% increase SE within band. The exhibits an of 21.1 dB at thickness 100 nm, average SE/t 700 μm −1 over 0.1–10 THz. Theoretical calculations suggest that enhances film's conductivity surface plasmon resonances, resulting improved wave absorption. Additionally, films' stretchability stability. After bending stretching (at 30% strain) cycles, transmittance only 0.5% 2.4%, respectively. outstanding performances make it promising materials future smart windows wearable electronics.
Language: Английский
Citations
22
Journal of Semiconductors, Journal Year: 2025, Volume and Issue: 46(1), P. 011602 - 011602
Published: Jan. 1, 2025
Abstract Infrared optoelectronic sensing is the core of many critical applications such as night vision, health and medication, military, space exploration, etc. Further including mechanical flexibility a new dimension enables novel features adaptability conformability, promising for developing next-generation sensory toward reduced size, weight, price, power consumption, enhanced performance (SWaP 3 ). However, in this emerging research frontier, challenges persist simultaneously achieving high infrared response good deformability devices integrated systems. Therefore, we perform comprehensive review design strategies insights flexible sensors, fundamentals photodetectors, selection materials device architectures, fabrication techniques strategies, discussion architectural functional integration towards wearable optoelectronics advanced image sensing. Finally, article offers into future directions to practically realize ultra-high smart sensors enabled by infrared-sensitive materials, covering development micro-/nanofabrication. Benchmarks scaling these across fabrication, performance, are presented, alongside perspectives on potential medication health, biomimetic neuromorphic systems,
Language: Английский
Citations
4
Journal of Semiconductors, Journal Year: 2025, Volume and Issue: 46(1), P. 011601 - 011601
Published: Jan. 1, 2025
Abstract Flexible photodetectors have garnered significant attention by virtue of their potential applications in environmental monitoring, wearable healthcare, imaging sensing, and portable optical communications. Perovskites stand out as particularly promising materials for photodetectors, offering exceptional optoelectronic properties, tunable band gaps, low-temperature solution processing, notable mechanical flexibility. In this review, we explore the latest progress flexible perovskite emphasizing strategies developed photoactive device structures to enhance performance stability. Additionally, discuss typical these devices offer insights into future directions applications.
Language: Английский
Citations
2
Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)
Published: April 30, 2023
Abstract NiO x -based inverted perovskite solar cells (PSCs) have presented great potential toward low-cost, highly efficient and stable next-generation photovoltaics. However, the presence of energy-level mismatch contact-interface defects between hole-selective contacts (HSCs) perovskite-active layer (PAL) still limits device efficiency improvement. Here, we report a graded configuration based on both interface-cascaded structures p-type molecule-doped composites with two-/three-dimensional formamidinium-based triple-halide perovskites. We find that interface defects-induced non-radiative recombination at HSCs/PAL interfaces is remarkably suppressed because hole extraction transport. Moreover, strong chemical interaction, halogen bonding coordination are found in composites, which significantly suppress formation halide vacancy parasitic metallic lead. As result, PSCs present power-conversion-efficiency over 23% high fill factor 0.84 open-circuit voltage 1.162 V, comparable to best reported around 1.56-electron volt bandgap Furthermore, devices encapsulation operational stability 1,200 h during T 90 lifetime measurement (the time as function PCE decreases 90% its initial value) under 1-sun illumination ambient-air conditions.
Language: Английский
Citations
29
Small, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 17, 2025
Abstract Taking advantage of their unparalleled electrostatic and optoelectronic properties, 2D layered materials (2DLMs) have emerged as alluring building blocks for crafting advanced photodetectors. Nevertheless, preceding research has predominantly concentrated on rudimentary designs incorporating single‐channel or single‐junction setups, failing to exert the full potency 2DLMs. Therefore, there is still an imperative requirement develop innovative device architectures grounded in novel physical mechanisms. Herein, a T‐In 2 Se 3 /M‐WS /B‐WSe heterojunction photodetector boasting pronounced gate‐tunability devised, achieving remarkable light on/off ratio 5.8 × 10 4 detectivity 1.1 13 Jones at V gs = −25 V, alongside competitive responsivity gain 633 A W −1 1943 30 V. Energy band analysis determined that former associated with synergy cascaded alignment high degree depletion effect, while latter ascribed intermediate electron reservoir enabling high‐efficiency spacial separation photoexcited electron−hole pairs. Leveraging this pivotal sensing component, proof‐of‐concept applications spanning broadband imaging automatic driving are demonstrated. This study presents paradigm constructing 2DLM‐based photodetectors outstanding comprehensive performance, thereby establishing fascinating platform capable catering diverse demands next‐generation industry.
Language: Английский
Citations
1
Advanced Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 20, 2024
Abstract Non‐contact gesture recognition and interaction (NGRI) revolutionizes the natural user interface, fundamentally transforming human interactions with daily‐use technology. Conventional NGRI systems frequently encounter obstacles such as pronounced latency environmental disturbances, including humidity or lighting conditions, resulting in compromised system fluidity robustness. This study highlights utilization of silicon‐based semimetal heterojunction photodetectors for precise seamless human‐machine interaction. Through application band alignment theory sophisticated TCAD simulation, barriers are successfully optimized by fine‐tuning parameters Si doping concentration thickness. By strategically aligning vertical material growth implementing configuration, a room temperature detector exceptional sensitivity (specific detectivity ( D* ): ≈10 11 Jones), ultra‐broad spectral range (405–10600 nm), rapid response time (≈ µs) is achieved. Harnessing its distinguished speed detecting infrared radiation, conjunction an advanced spatial‐temporal comparison algorithm multi‐channel high‐frequency sampling processing design, low latency, high precision, minimal energy consumption, versatility across diverse scenarios has been developed. The results pave way non‐contact sensor design may further enhance practicality experience systems.
Language: Английский
Citations
5
Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 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
Language: Английский
Citations
0
Small, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 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.
Language: Английский
Citations
0
Applied Physics Reviews, Journal Year: 2025, Volume and Issue: 12(1)
Published: March 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.
Language: Английский
Citations
0