Composites Part B Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 112076 - 112076
Published: Dec. 1, 2024
Language: Английский
Advanced Materials, Journal Year: 2024, Volume and Issue: 36(33)
Published: June 19, 2024
Abstract Bidirectional haptic communication devices accelerate the revolution of virtual/augmented reality and flexible/wearable electronics. As an emerging kind flexible piezoelectric materials, piezoelectret materials can effortlessly convert mechanical force into electrical signals respond to fields in a deformation manner, exhibiting enormous potential construction bidirectional devices. Existing reviews on primarily focus energy harvesters sensors, recent development piezoelectret‐based has not been comprehensively reviewed. Herein, comprehensive overview construction, along with advances devices, is provided. First, timeline, key characteristics, various fabrication methods are introduced. Subsequently, following underlying mechanisms electromechanical signal conversion piezoelectret, strategies improve d 33 coefficients proposed. The principles perception feedback also highlighted, representative works progress this area summarized. Finally, challenges opportunities associated improving overall practicability materials‐based discussed.
Language: Английский
Citations
13
Current Opinion in Solid State and Materials Science, Journal Year: 2024, Volume and Issue: 28, P. 101134 - 101134
Published: Jan. 8, 2024
Language: Английский
Citations
9
Materials & Design, Journal Year: 2025, Volume and Issue: unknown, P. 113672 - 113672
Published: Jan. 1, 2025
Language: Английский
Citations
1
Materials, Journal Year: 2024, Volume and Issue: 17(15), P. 3872 - 3872
Published: Aug. 5, 2024
This study focused on preparing composite nanomats by incorporating silver nanoparticles (AgNPs) in polyvinylidene fluoride (PVDF) nanofibers through the electrospinning process. A short review of piezoelectric PVDF-related research is presented. PVDF known for its biocompatibility and properties. Since electrical signals biological tissues have been shown to be relevant therapeutic applications, influence addition AgNPs piezoelectricity studied, due ability increase signal, along with providing antibacterial The prepared samples were characterized scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy. In addition, activity composites was examined using a cytotoxicity assay an assessment activity. obtained results show that incorporation into further enhances (crystalline β-phase fraction), already improved process, compared solution-casted samples, but only AgNPs/PVDF concentration up 0.3%; led reduction. showed promising effect PVDF/AgNPs MDA-MB-231 breast cancer cell line, following non-toxicity displayed regard healthy MRC-5 line. against Pseudomonas aeruginosa Staphylococcus aureus, as result Ag content. anticancer activity, combined properties nanofibers, presents new possibilities smart, multifunctional materials treatment development.
Language: Английский
Citations
4
Polymers, Journal Year: 2025, Volume and Issue: 17(7), P. 977 - 977
Published: April 3, 2025
Obtaining robust power density through piezoelectric nanogenerators (PENGs) is very challenging. Challenges include achieving good mechanical stability, optimum stiffness, reasonable voltage generation, limited heat dissipation, and as needed. This work focused exactly on these areas, hybrid filler emerged a promising candidate among the composites studied. For example, fillers exhibited optimized properties suitable for self-powered engineering applications. The fabricated in this were based titanium oxide (TiO2), molybdenum disulfide (MoS2), silicone rubber (SR) host matrix. results showed that TiO2 represents reinforcing filler, while MoS2 exerts lubricating effect, improving composites' strength elongation at break. compressive modulus 8 per hundred parts of (phr) was 2.39 MPa 1.62 2.1 (hybrid filler). Similarly, hysteresis loss 5 phr 20.09 J/m 21.56 20.48 Moreover, break 150% 194% 170% In same way, electro-mechanical obtained also robust. output ~22 mV ~35 ~46 PENGs developed generated power. ~0.55 pW/cm2 ~1.03 ~1.56 Finally, coefficient 40 pC/N 112 160 These materials have role energy harvesting portable electronic systems. low-power provide cost-effective management circuits. allows to contribute sustainable self-sufficient systems like pacemaker implants.
Language: Английский
Citations
0
Royal Society of Chemistry eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 257 - 286
Published: April 28, 2025
Addressing global challenges such as energy production and storage, climate change, the aging population requires innovative solutions. Dielectric elastomer transducers (DETs) have potential to make significant contributions tackle these issues. They are electrically driven elastic capacitors capable of converting one form into another can be used actuators, generators, sensors, capacitive light-emitting devices. Actuators convert electrical mechanical various applications, including valves, pumps, optical lenses, engines, artificial muscles. Generators or thermal electricity. Sensors deformation an electric signal. Finally, devices light. Although any function a dielectric, enhancing performance DETs in applications dielectric elastomers with permittivity that is high possible carefully tailored properties. This chapter emphasizes molecular structure discusses design parameters leading new materials for improved performance.
Language: Английский
Citations
0
Acta Biomaterialia, Journal Year: 2024, Volume and Issue: 191, P. 205 - 215
Published: Nov. 20, 2024
Language: Английский
Citations
3
Energy & environment materials, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 6, 2024
Piezocomposites with both flexibility and electromechanical conversion characteristics have been widely applied in various fields, including sensors, energy harvesting, catalysis, biomedical treatment. In the composition of piezocomposites or their preparation process, a category materials is commonly employed that do not possess piezoelectric properties themselves but play crucial role performance enhancement. this review, concept auxiliary phase first proposed to define these materials, aiming provide new perspective for designing high‐performance piezocomposites. Three different categories modulation forms are systematically summarized, modification piezo‐matrix, piezo‐fillers, construction special structures. Each emphasizes discusses latest advancements physical mechanisms enhanced flexible Finally, summary future outlook based on provided.
Language: Английский
Citations
0
Nanoenergy Advances, Journal Year: 2024, Volume and Issue: 4(4), P. 344 - 354
Published: Nov. 15, 2024
Ferroelectret nanogenerators (FENGs) have garnered attention due to their unique porous structure and excellent piezoelectric performance. However, most existing FENGs lack sufficient stretchability flexibility, limiting application in the field of wearable electronics. In this regard, we focused on development an ultrathin, stretchable, twistable ferroelectret nanogenerator (UST-FENG) based Ecoflex, which is made up graphene, anhydrous ethanol, with controllable pore shape density. The UST-FENG has a thickness only 860 µm, fracture elongation rate 574%, Young’s modulus 0.2 MPa, exhibiting outstanding thinness stretchability. Its quasi-static coefficient approximately 38 pC/N. Utilizing device can enable recognition facial muscle movements such as blinking speaking, thereby helping monitor people’s conditions improve quality life. successful represents important step forward systems for human face.
Language: Английский
Citations
0
Composites Part B Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 112076 - 112076
Published: Dec. 1, 2024
Language: Английский
Citations
0