Flexible Nanogenerator and Nano‐Pressure Sensor Based on Nanofiber Web of PVDF and its Copolymers

Improved performance of a polymer nanogenerator based on silver nanoparticles doped electrospun P(VDF–HFP) nanofibers

“…We emphasize that the PNGs fabricated with neat P(VDF-HFP) fibers can give rise to an output voltage of more than 1 V and the current density is about 0.3 mA cm À2 which is quite promising when compared to state of the art PNG research. 6,7,24 In addition, we emphasize that the output voltage can be increased up to 3 V by Ag-NP doping as clearly shown in Fig. 4c (the comparative results are shown in Fig.…”

“…[1][2][3][4][5] Recently a few attempts have been undertaken to improve the output voltage and current density of PNGs by the addition of carbon nanotubes (CNTs) and metal nanoparticles in electrospun PVDF nanofibers but no one has tried yet with the costeffective copolymer, P(VDF-HFP). 6,7 The electrospun P(VDF-HFP) fibers were utilized as electrolyte membranes in dye-sensitized solar cells, exhibiting a good light to electricity conversion efficiency and improved long term stability. 8 However, electrospun PNGs produced with P(VDF-HFP) have not been reported to date.…”

The in situ formation of platinum nanoparticles and their catalytic role in electroactive phase formation in poly(vinylidene fluoride): a simple preparation of multifunctional poly(vinylidene fluoride) films doped with platinum nanoparticles

“…7 In this context, in situ preparation of metal NPs and its doping in PVDF have continually proven to be the elite materials in multifunctional approach towards sensor technology, it also includes the very interesting redox properties of Pt-NPs. [8][9][10][11] Herein, we report an in situ preparation of platinum nanoparticles (Pt-NPs) and its successful doping in PVDF by a simple, single step and scalable procedure. Pt-NPs act here as a new type of catalyst for crystallographic phase transformation in PVDF, viz., a / b and g-phase.…”

Using Miniaturized Strain Sensors to Provide a Sense of Touch in a Humanoid Robotic Arm

“…In particular, Da Vinci, by Intuitive Surgical (Guthart and Salisbury, 2000) is a surgical master-slave robotic system capable of highly dexterous movement, designed to improve the clinical outcomes of patients by using precise robotic control to minimize the trauma from surgical procedures. Recently, various types of surface-mountable, miniaturized and low-cost strain (Kottapalli et al, 2012;Xu et al, 2013;Sengupta et al, 2017;Khan et al, 2018) and pressure (Asadnia et al, 2015;Vujaklija and Farina, 2018) sensors have been utilized, allowing accurate sensing and control capability for robotic systems. The systems primarily rely on position control, or force or torque feedback from actuator systems.…”