Ultra-sensitive all organic PVDF-TrFE E-spun nanofibers with enhanced β-phase for piezoelectric response

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

“…This polar β phase plays a very important role in determining the output electrical, piezoelectric, and mechanical energy-harvesting properties of the composite films. Actually, the dipoles of P­(VDF-TrFE) are oriented in such a way that it exhibits the all-trans β chain configuration in normal conditions . As reported earlier, the polarity of P­(VDF-TrFE) mainly depends on the ratio of its VDF and TrFE contents.…”

Porous Structures Formed by Fluorine-Doped Reduced Graphene Oxide Sheets as High-Performance Anodes for Potassium-Ion Batteries

“…Three prominent peaks of 284.7, 285.7, and 290.0 eV are visible in the C 1s spectra of Figure e, suggesting the presence of C–C, C–O, and C–F bonds, respectively . Peaks of 532.0, 533.8, and 532.9 eV in the O 1s spectra of Figure f correspond to O–CO, CO, and C–O bonds, respectively . The F 1s map displays that 687.2 and 685.6 eV correspond to C–F and F 1s bonds in Figure g, respectively, demonstrating that the fluorine element has been successfully doped into RGO.…”

“…Three prominent peaks of 284. 36 The F 1s map displays that 687.2 and 685.6 eV correspond to C−F and F 1s bonds in Figure 2g, respectively, demonstrating that the fluorine element has been successfully doped into RGO. Based on the nitrogen adsorption/desorption results of Figure 2h, the BET specific surface area is 322.73 m 2 /g, and the pore size is approximately 5 nm of porous CF@RGO, as shown in Figure 2i.…”

A review on polymers and their composites for flexible electronics

“…In the continuous finger tapping mode, the rectification voltage response of the composite film reached 3 V, whereas under the action of 0.5 N oscillation force, the maximum output voltage of the device was 0.289 V. P(VDF-TrFE) also has excellent spinning ability, where the heat generated in the electrostatic spinning process and the larger charge flow lead to polymer chain stretching, resulting in an ato b-phase transformation, without any post-treatment. 148 Shao et al 149 developed novel P(VDF-TrFE) based electrospinning nanofibers with rGO and loaded MWCNTs, which could be used to manufacture ultra-sensitive piezoelectric pressure sensors. When the content of RGO-MWCNTs as the dopant was 3.2%, the b phase increased to 92% (Fig.…”

“…P(VDF-TrFE) also has excellent spinning ability, where the heat generated in the electrostatic spinning process and the larger charge flow lead to polymer chain stretching, resulting in an α- to β-phase transformation, without any post-treatment. 148 Shao et al 149 developed novel P(VDF-TrFE) based electrospinning nanofibers with rGO and loaded MWCNTs, which could be used to manufacture ultra-sensitive piezoelectric pressure sensors. When the content of RGO-MWCNTs as the dopant was 3.2%, the β phase increased to 92% (Fig.…”