Flexible nano-ZnO/polyvinylidene difluoride piezoelectric composite films as energy harvester

Polymeric piezoelectric composites for energy harvesting applications are considered a significant research field which provides the convenience of mechanical flexibility, suitable voltage with sufficient power output, lower manufacturing cost, and rapid processing compared to ceramic‐based composites. This review focuses majorly on the basic theory and principles behind piezoelectric energy harvesting (PEH) devices, followed by specified materials used for the different devices. Different structural configurations associated with fabrication of PEH devices are discussed in detail along with their major advantages and drawbacks. Numerous classes of piezoelectric polymers such as polyvinylidene fluoride, polylactic acid, cellulose, polyamides, polyurea, polyurethanes, and their composites used for energy harvesting applications as a productive alternative of lead‐based piezo‐ceramics, are extensively addressed and explored. Additionally, current global and Indian scenarios associated with PEH devices, major challenges associated with them, and the future perspective of such devices are also reported in this review.

show abstract

“…In 2016, Bhunia et al . used freestanding flexible nano‐ZnO to prepare PVDF composite films by sol–gel technique.…”

Section: Piezoelectric Polymers: a Productive Alternative To Piezo‐cementioning

confidence: 99%

Advances in Piezoelectric Polymer Composites for Energy Harvesting Applications: A Systematic Review

Mishra

Unnikrishnan

Nayak

et al. 2018

Macro Materials & Eng

352

293

View full text Add to dashboard Cite

show abstract

“…made flexible ZnO/PVDF composite films by the sol–gel technique, followed by poling them in a vacuum. [ 286 ] A ten‐times increase in output voltage was observed upon poling the ZnO/PVDF nanocomposites. The composites with 0.2 mol% ZnO concentration exhibited a voltage of ≈4 V and much higher value d 33 value of 900 pC N –1 , compared to 20–28 pC N –1 for PVDF [ 31 , 136 ] and 12.3 pC N –1 for ZnO.…”

Section: Piezoelectric Polymer Nanocompositesmentioning

confidence: 99%

Piezoelectric Materials for Energy Harvesting and Sensing Applications: Roadmap for Future Smart Materials

et al. 2021

View full text Add to dashboard Cite

Piezoelectric materials are widely referred to as "smart" materials because they can transduce mechanical pressure acting on them to electrical signals and vice versa. They are extensively utilized in harvesting mechanical energy from vibrations, human motion, mechanical loads, etc., and converting them into electrical energy for low power devices. Piezoelectric transduction offers high scalability, simple device designs, and high-power densities compared to electro-magnetic/static and triboelectric transducers. This review aims to give a holistic overview of recent developments in piezoelectric nanostructured materials, polymers, polymer nanocomposites, and piezoelectric films for implementation in energy harvesting. The progress in fabrication techniques, morphology, piezoelectric properties, energy harvesting performance, and underpinning fundamental mechanisms for each class of materials, including polymer nanocomposites using conducting, non-conducting, and hybrid fillers are discussed. The emergent application horizon of piezoelectric energy harvesters particularly for wireless devices and self-powered sensors is highlighted, and the current challenges and future prospects are critically discussed.

show abstract

“…The prepared films not only maintain their mechanical flexibility but also improve their piezoelectric properties. Zinc oxide-PVDF composite membrane [118] can also be prepared by sol-gel technology. The latest report is on the preparation of metal ZnO PVDF composite films by doping ZnO nanoparticles into metals, which shows the potential for mechanical energy generation and motion sensing.…”

Section: Conductive Nanomaterials Doped In Pvdfmentioning

confidence: 99%

Composites, Fabrication and Application of Polyvinylidene Fluoride for Flexible Electromechanical Devices: A Review

Guo

Duan

Xie

et al. 2020

Preprint

View full text Add to dashboard Cite

The technological development of piezoelectric materials is crucial for developing wearable and flexible electromechanical devices. There are many inorganic materials with piezoelectric effects, such as piezoelectric ceramics, aluminum nitride, and zinc oxide. They all have very high piezoelectric coefficients and large piezoelectric response ranges. The characteristics of high hardness and low tenacity make inorganic piezoelectric materials unsuitable for flexible devices that require frequent bending. Polyvinylidene fluoride (PVDF) and its derivatives are the most popular materials used in flexible electromechanical devices in recent years and have high flexibility, high sensitivity, high ductility, and a certain piezoelectric coefficient. Owing to increasing the piezoelectric coefficient of PVDF, researchers are committed to optimizing PVDF materials and enhancing their polarity by a series of means to further improve their mechanical–electrical conversion efficiency. This paper reviews the latest PVDF-related optimization materials, related processing and polarization methods, and the applications of these materials such as those in wearable functional devices, chemical sensors, biosensors, and flexible actuator devices for flexible micro-electromechanical devices. We also discuss the challenges of wearable devices based on flexible piezoelectric polymer, consider where further practical applications could be.

show abstract

Flexible nano-ZnO/polyvinylidene difluoride piezoelectric composite films as energy harvester

Cited by 35 publications

References 22 publications

Advances in Piezoelectric Polymer Composites for Energy Harvesting Applications: A Systematic Review

Advances in Piezoelectric Polymer Composites for Energy Harvesting Applications: A Systematic Review

Piezoelectric Materials for Energy Harvesting and Sensing Applications: Roadmap for Future Smart Materials

Composites, Fabrication and Application of Polyvinylidene Fluoride for Flexible Electromechanical Devices: A Review

Contact Info

Product

Resources

About