Nano Energy, Journal Year: 2024, Volume and Issue: unknown, P. 110616 - 110616
Published: Dec. 1, 2024
Language: Английский
AIP Advances, Journal Year: 2025, Volume and Issue: 15(4)
Published: April 1, 2025
Triboelectric nanogenerators (TENGs), as a revolutionary energy-harvesting technology, have garnered widespread attention in the scientific community for their efficient conversion of mechanical energy into electrical energy. This article first outlines five working modes TENGs: vertical contact-separation mode, horizontal sliding single-electrode independent layer and free-standing rotating elaborates on principles detail. Subsequently, this delves application examples TENGs wearable health monitoring devices, implantable medical environmental monitoring, fully demonstrating vast potential TENG technology monitoring. In addition, analyzes advantages including its self-powered characteristics, high sensitivity, good biocompatibility, while also pointing out challenges that it faces, such improving long-term stability, enhancing efficiency, adaptability. review aims to explore progress analyze challenges, look forward future development directions. Through systematic analysis existing literature, will provide researchers developers with in-depth insights guiding research product development.
Language: Английский
Citations
0
Energy & environment materials, Journal Year: 2025, Volume and Issue: unknown
Published: April 15, 2025
Metal–organic frameworks (MOFs) are known for their high porosity and stability, making them ideal various applications, including energy harvesting. A simple synthesis method was used to synthesize zinc‐based metal–organic (Zn‐MOFs) introduce into an ultra‐stretchable Ecoflex polymer as functional fillers. We developed triboelectric nano generator (TENG) devices using Ecoflex, both pristine modified with different Zn‐MOF concentrations, evaluate performance. The output voltage, current, instantaneous power of Zn‐MOF‐modified TENG were 3, 4, 5 times higher than TENGs. This improvement is due Zn‐MOF's large surface area, porous structure, charge trapping sites, improved roughness, electron cloud conduction. device achieved 36 mW maximum 40 m −2 density. Flexible powered LEDs stored in capacitors by converting mechanical electrical energy. integrated flexible cardiac patients' shoes monitor running speeds identify dangerous velocities wireless IoT monitoring. Real‐time notifications data transmission families emergency personnel allowed immediate assistance.
Language: Английский
Citations
0
Talanta, Journal Year: 2025, Volume and Issue: unknown, P. 128227 - 128227
Published: April 1, 2025
Language: Английский
Citations
0
Nano Energy, Journal Year: 2024, Volume and Issue: unknown, P. 110297 - 110297
Published: Sept. 1, 2024
Language: Английский
Citations
3
Polymers, Journal Year: 2024, Volume and Issue: 16(4), P. 555 - 555
Published: Feb. 18, 2024
Natural environment hosts a considerable amount of accessible energy, comprising mechanical, thermal, and chemical potentials. Environment-induced nanogenerators are nanomaterial-based electronic chips that capture environmental energy convert it into electricity in an environmentally friendly way. Polymers, characterized by their superior flexibility, lightweight, ease processing, considered viable materials. In this paper, thorough review comparison various polymer-based were provided, focusing on power generation principles, key materials, density stability, performance modulation methods. The latest developed mainly include triboelectric (TriboENG), piezoelectric (PENG), thermoelectric (ThermoENG), osmotic nanogenerator (OPNG), moist-electric generators (MENG). Potential practical applications also summarized. found polymer can harness variety sources, with the basic mechanism centered displacement/conduction currents induced dipole/ion polarization, due to non-uniform distribution physical fields within polymers. enhancement should start from strengthening ion mobility positive/negative separation development ionic hydrogel matrix composites is promising for future enable multi-energy collaborative generation. addition, enhancing uneven temperature, concentration, pressure surrounding materials effectively improve output performance. Finally, challenges faced directions prospected.
Language: Английский
Citations
2
ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(12), P. 14504 - 14515
Published: June 18, 2024
Here, we report the development of a tribo-piezoelectric hybrid nanogenerator (STPHNG) based on ZnO-CsPbBr3/poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) system for photodetection in ultraviolet (UV) to visible region. The encapsulation chemically synthesized CsPbBr3 nanoparticles (∼10 nm) PVDF-HFP polymers is proven be an excellent strategy achieving STPHNG with long-term stability. Apart from encapsulating ambient environment, CsPbBr3/PVDF-HFP offers suitable piezoelectric output enhance triboelectric characteristics by 5 times when brought contact ZnO nanorods having average diameter ∼55 nm. Again, were realized variation under UV or light. light-induced modification consequence screening effect tribo-charges, which not only lowers open-circuit voltage but also modifies inherent capacitance nanogenerator. superior photoresponsivity values ∼6.59 × 104 and ∼3.67 V/W light, respectively, originate outstanding optical absorption properties shielding tribo-charges active materials. Finally, real-time data transmission wearable demonstrated upon operating through finger movement user. demonstration modification, photodetection, stability ZnO-CsPbBr3/PVDF-HFP may build foundation futuristic, wearable, cost-effective photodetectors efficiency longevity.
Language: Английский
Citations
1
Nano Energy, Journal Year: 2024, Volume and Issue: 132, P. 110350 - 110350
Published: Oct. 9, 2024
Language: Английский
Citations
1
Small, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 26, 2024
The fabrication of self-driven systems with flexibility and tunable output for organic photoinduction is highly desirable but challenging. In this study, a 3D cadmium metal-organic framework (Cd-MOF) synthesized used as filler ethyl cellulose (EC) to create mechanically durable flexible Cd-MOF@EC composite films. Due its well-established platform periodically precise structure nature, the outputs Cd-MOF-based TENG are much higher than those ligand-based TENGs. Furthermore, films different doping ratios Cd-MOF employed assemble Cd-MOF@EC-based triboelectric nanogenerators (TENGs). results reveal that ratio 10 wt.% in provides highest output. Subsequently, (FCEC-TENG), working contact-separation model, constructed harvest mechanical energy from human body, demonstrating excellent performance stability. harvested FCEC-TENG can directly illuminate 14 commercial white light-emitting diodes (LEDs), providing visible light bromination reaction, generating bromide good yield tolerance. This study presents an effective method constructing MOF-based self-powered photoinduced transformation systems.
Language: Английский
Citations
1
Acta Physica Sinica, Journal Year: 2024, Volume and Issue: 0(0), P. 0 - 0
Published: Jan. 1, 2024
Most exiting piezoelectric polymers have low glass transition temperature, so they can only opereture at lower temperature (<150 °C). Once the operate is exceeded, performance of device rapidly decreases. At higher temperatures, dense chain motion interfere with orientation dipoles, thus limiting development polmer based high-temperature sensors. High-temperature sensor devices are entirely made inorganic materials, however, materials rigid and under small strains. Therefore, enhancement resistance polmers constructing asymmetric structure key to manufacturing flexible resistant piezoelectric/pyroelectric dual functional In this study, polyacrylonitrile (PAN) nanofiber film was prepared by electrospinning, then heat treating PAN program control. The effects different heat-treatment temperatures on mechanical electrical studied systematically. results study show that, high sensors be used in environment (> 500 ℃). Its output increases increase treatment (< 260 ℃) basically remains unchanged (260-450 Finally, decreased 450 When reaches ℃, voltage up 10.08 V, current reached 2.89 μA. Compared membranes without treatment, its were increased 3.54 times 2.83 times, respectively. same time, almost environment. For first heat-treated has a pyroelectric effect, open-circuit short-circuit increasing gradient. Besides, durability for over 5000 cycles room temperature(25 °C), it also (400 Overall, good flexible, resistance, bifunctional sensing ability make expect widely environments such as fire safety, aerospace other harsh
Language: Английский
Citations
0
Nano Energy, Journal Year: 2024, Volume and Issue: unknown, P. 110616 - 110616
Published: Dec. 1, 2024
Language: Английский
Citations
0