Materials Horizons, Journal Year: 2024, Volume and Issue: unknown
Published: Jan. 1, 2024
The 'pyro-phototronic effect' plays a nontrivial role in advancing ferroelectric (FE) devices of light detectors, light-emitting diodes, and other smart technologies. In this work, premier FE copolymer, poly(vinylidene fluoride-
Language: Английский
Physical review. B./Physical review. B, Journal Year: 2025, Volume and Issue: 111(15)
Published: April 23, 2025
Language: Английский
Citations
1
Advanced Materials Technologies, Journal Year: 2024, Volume and Issue: 9(20)
Published: July 12, 2024
Abstract In recent years, the convergence of smart electronic textile (e‐textile) and digital technology has emerged as a transformative shift in healthcare, offering innovative solutions for point‐of‐care diagnostics. However, development electronics with exceptional functionality comfort still remains challenging. Here, all‐electrospun piezoelectric e‐textile empowered is reported by Internet Things (IoT) machine learning advanced The resulting exhibits breathability (b ≈ 4.13 kg m −2 d −1 ), flexibility, water‐resistive properties (water contact angle ≈137°), mechano‐sensitivity 1.5 V N due to its mechanical‐to‐electrical energy conversion abilities. It can efficiently monitor different critical biomedical healthcare signals, such as, arterial pulse respiration rate. Importantly, sensor demonstrates remarkable attributes, generating an open circuit voltage 10.5 V, short current 7.7 µA, power density 4.2 µW cm . Moreover, provides real‐time, non‐invasive monitoring human physiological movements through IoT. worth highlighting that showcases impressive 96% accuracy detecting respiratory representing significant accomplishment. Thus, this enormous potential remote patient early disease detection, aiming reduce costs, enhance outcomes, improve overall quality medical care.
Language: Английский
Citations
4
Small, Journal Year: 2024, Volume and Issue: 20(48)
Published: Sept. 6, 2024
Abstract Magnetoelectric materials are highly desirable for technological applications due to their ability produce electricity under a magnetic field. Among the various types of magnetoelectric studied, organic counterparts provide an opportunity develop solution‐processable, flexible, lightweight, and wearable electronic devices. However, there is rare choice lightweight which has tremendous interest. A supramolecular scaffold with precisely positioned structure‐forming functional units (electrical dipoles spins) designed so that self‐assembly results in unit organization. Structure‐forming segments allow these scaffolds self‐assemble into hierarchically ordered structures nonpolar solvents, creating nanofibrous organogel networks. In particular, xerogel derived from this exhibits highest coupling coefficient (α ME ≈ 216 mV Oe −1 cm ) reported date materials. This even greater than commonly envisioned composite made piezoelectric polymers inorganic magnets. single‐component multiferroic material displays ferroelectricity ( T c 46 °C) paramagnetic behavior at room temperature. With this, it demonstrated possibilities effectively harvesting stray fields copiously available surroundings wasted otherwise.
Language: Английский
Citations
4
Journal of Materials Science Materials in Electronics, Journal Year: 2025, Volume and Issue: 36(4)
Published: Feb. 1, 2025
Language: Английский
Citations
0
Ceramics International, Journal Year: 2025, Volume and Issue: unknown
Published: March 1, 2025
Language: Английский
Citations
0
ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown
Published: May 2, 2025
Language: Английский
Citations
0
ACS Nano, Journal Year: 2025, Volume and Issue: unknown
Published: May 12, 2025
Two-dimensional (2D) layered semiconductors reveal boundless potential in next-generation ferro-, piezo-, and pyroelectric property-based self-powered devices. In this scenario, we report the experimental observations, which are consistent with first-principles calculations of out-of-plane ferro- piezoelectricity 2D tin selenide (SnSe) van der Waals-bonded monolayers. It has a strain-engineered, synergetic trigonal crystal structure. Thin 2D-SnSe nanosheets few monolayers exfoliated from bulk orthorhombic SnSe, facilitates enormous pyroelectric-aided transient thermal energy harvesting. particular, phase amplitude hysteresis piezoresponse force microscopy affirms that trilayer SnSe exhibit profound piezoelectric (d33 ∼ 3.45 pm/V) responses. A robust response persists figure merit (Fv 8 m2 C-1 FD 132 × 10-6 Pa-1/2), an order higher than commercially benchmark pyroelectrics. Hence, layers could be promising materials for pyroelectric-based waste heat scavenging, infrared imaging, detectors various applications.
Language: Английский
Citations
0
Small, Journal Year: 2025, Volume and Issue: unknown
Published: May 12, 2025
Abstract In recent years, smart textile sensors have gained exponential growth in various sectors such as wearable technology and healthcare. However, addressing the demand for textiles that offer both exceptional functionality (e.g., air‐permeability, flexibility) comfort remains a significant challenge. this context, rotary jet‐spun piezoelectret is demonstrated, which not reported so far. The piezoelectric output of all‐organic sensor improved by 150% voltage 200% current upon electrical poling. finite element method revealed enhanced piezo‐potential attributed to trapped polarized charges within matrix. It exhibited outstanding properties with sensitivity 400 mV kPa −1 (pressure range, 0.6–7 kPa), waterproofness (water contact angle ≈134°) high breathability (10 kg m −2 per day), ensuring wearer comfort. Apart from monitoring different physiological signals pulse respiratory rate, it also acted array displays deep learning‐aided pressure mapping accuracy 98%. addition, accelerated faster proliferation migration L929 cell due its piezoelectricity induced stimulation, suggesting potential application wound dressings. Thus, approach has huge scalable versatile solution biomedical technology.
Language: Английский
Citations
0
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(45)
Published: June 23, 2024
Abstract Developing polymer‐based piezoelectric materials with multistimulus responsiveness is highly desirable for advancing multi‐source energy harvesting in wearable electronics. Inspired by the multifunctionality of muscle fibers, a nanostructure interface engineering strategy to create polymeric nanoheterostructures (PNHs) remarkable both mechanical and nonmechanical contactless stimuli introduced. Through precise interfacing polymer nanofibers nanoparticles via multiscale‐regulated electrostatic chemical interactions, study achieves controlled assembly stabilized hierarchically organized featuring unique interface‐confined configurations. These configurations induce situ dipole orientation significant geometric stress nano‐confinement at interfaces, crucial amplifying electricity generation. Compared conventional nanocomposites, engineered PNHs exhibit dramatically enhanced piezoelectricity, boasting higher sensitivity 1065 mV kPa −1 coefficient 76.2 pC N . Furthermore, demonstrate superior thermo‐actuated generation under temperature fluctuations through cooperative spontaneous polarizations constituent nanostructures, yielding pyroelectric 3.13 µC m 2 K Additionally, design enables photothermally‐activated switchable light‐energy harvesting, achieving photo‐electric conversion efficiency tenfold than nanocomposites. This effective versatile approach inspires development multi‐responsive nanogenerators multi‐energy self‐powered multistimulus‐sensing applications.
Language: Английский
Citations
3
ACS Nano, Journal Year: 2024, Volume and Issue: 18(44), P. 30681 - 30689
Published: Oct. 23, 2024
The magnetoelectric (ME) effect, which involves the interaction of magnetic and electric fields within a material, has significant potential for various applications. Our study addresses limitations conventional magnetostriction-based ME materials by demonstrating an alternative approach that achieves substantial effects in core-shell-type nanocomposites at room temperature. By synthesizing ferrimagnetic Fe3O4 nanoparticles onto piezoelectric poly(vinylidene fluoride) (PVDF) particles, we identified distinct mechanism. In magnetorheological (MR) fluids, magnetic-field-induced aggregation nanoparticles, combined with piezoelectricity PVDF, leads to pronounced significantly enhancing performance stability MR fluids. This research highlights crucial observation effects, could suggest pathways advancements practical applications including microfluidics, vibration dampers, tactile technologies, biomedical bioengineering fields.
Language: Английский
Citations
3