3D printing of PVDF-based piezoelectric nanogenerator from programmable metamaterial design: Promising strategy for flexible electronic skin

Tuning the Electromechanical Response of P(VDF-TrFE)/ZnSnO3-Based Binary Piezoelectric Composites for Biomechanical Energy-Harvesting and Self-Powered Mechanosensing

“…The dielectric characteristics of the films were evaluated by using a precession impedance analyzer (Wayne Kerr, 6500B), and their ferroelectric characteristic was studied through the investigation of their electric field ( E )-dependent polarization ( P ) hysteresis loops ( P – E loops) (at 1 Hz frequency of input triangular waveform) by using a custom-designed modified Sawyer–Tower circuit interfaced with the desired function generator (Tektronix, AFG3022B), high-voltage amplifier (Trek, PD05034), electrometer (KEITHLEY, 6517B), and LabVIEW software (version: 17). The mechanical responses of all films were measured by using a nanoindenter (Anton Paar-NHT) under load control mode at room temperature (30 °C). A diamond Berkovich nanoindenter of tip radius ∼ 200 nm was used for this purpose.…”

“…1,2 Due to their excellent performance, they are now being used in biomedical fields and healthcare monitoring too. 3,4 For this purpose, different non-piezoelectric polymers like polydimethylsiloxane (PDMS), 5 ecoflex, 6 etc., hydrogels like poly(vinyl alcohol) (PVA), 7 gelatine, 8 etc., and piezoelectric polymers like poly(vinylidene fluoride) (PVDF) 9 and its co/ter-polymers, 10 thermoplastic polyurethane (TPU), 11 cellulose, 12 nylon-11, 13 poly(vinyl chloride) (PVC), 14 etc. have been utilized by researchers all over the globe.…”

“…Mechanical energy harvesting by using polymer-based flexible piezoelectric, triboelectric, and hybrid devices is perhaps the most widely studied research topic in present days, especially in the field of strain sensing, vibration sensing, and small electronics. , Due to their excellent performance, they are now being used in biomedical fields and healthcare monitoring too. , For this purpose, different non-piezoelectric polymers like polydimethylsiloxane (PDMS), ecoflex, etc., hydrogels like poly­(vinyl alcohol) (PVA), gelatine, etc., and piezoelectric polymers like poly­(vinylidene fluoride) (PVDF) and its co/ter-polymers, thermoplastic polyurethane (TPU), cellulose, nylon-11, poly­(vinyl chloride) (PVC), etc. have been utilized by researchers all over the globe.…”

Bio‐Based and Recyclable Self‐Healing Elastomer for the Application of Self‐Powered Triboelectric Nanogenerator in Low‐Temperature

“…In recent years, the next generation of flexible wearable devices has garnered significant attention due to their diverse DOI: 10.1002/adfm.202311649 applications in electronic skins, [1][2][3] health monitoring technology, [4,5] and energy storage devices. [6][7][8][9][10][11][12] Research on triboelectric nanogenerators (TENG) has played a pivotal role in advancing the development of flexible wearable devices. [13][14][15][16] TENG, as an efficient mechanical energy harvesting device, has become the focal point of research in the micro/nano energy and self-driven sensing fields due to its high output power, exceptional conversion efficiency, broad selection of materials, multiple operational modes, ease of fabrication, cost-effectiveness, and lightweight nature.…”

Lego‐Like Model Reconfigurable and Transparent Stretchable Strain Sensor for Wearable and Biomedical Applications

“…Among these, a serpentine structure has emerged to be effective for creating stretchable interconnects or the structure of devices. [14,23,24] However, previous studies have mostly focused on substrate-bound serpentine structures, limiting the ability to modify the size or design of sensors for diverse target-sensing objects. [25][26][27][28][29] This limitation has led to a narrowing of potential printed devices in terms of their applications owing to geometrical and size reconfiguration obstacles.…”