A self-powered mechanical energy harvester based on CH₃NH₃PbI₃ doped P(VDF-HFP)/PANI composite films

Abstract

Piezoelectric polymers, particularly poly(vinylidene fluoride) (PVDF) and its copolymers grab the attention of researchers due to their stretchability, flexibility, lightweight, and most importantly their biocompatible nature. In this research work,...

Pressure-Driven Piezoelectric Sensors and Energy Harvesting in Biaxially Oriented Polyethylene Terephthalate Film

“…As previously mentioned, poly (vinylidene fluoride) is a rare polymer material that serves as a piezoelectric energy harvester. The PVDF-based nanogenerators usually provide very good output values; a piezoelectric organic-inorganic hybrid PVDF-TrFE nanocomposite film with BaTiO 3 nanoparticles showed output voltages of 59.5 V, but at a low compression pressure of 100 N [16], P(VDF-HFP) filled with polyaniline and (CH3NH3PbI3) has an excellent output power of 8.2 nW at a pressure amplitude of ∼14 kPa [10].…”

“…The concept of piezoelectric polymer materials represents the use of piezoelectric polymers such as poly(vinylidene fluoride) (PVDF) [6][7][8] or copolymers such as poly(vinylidene fluoridetrifluoroethylene) (P(VDF-TrFE)) [9] or poly(vinylidene fluoride-co-hexafluoropropylene) (P(VDF-HFP)) [10]. In addition, the piezoelectric polymer can be mixed with a nonpiezoelectric polymer, such as polyborosiloxane, to improve flexibility for detecting stimuli such as bending, shock, vibration, and breathing [11].…”

“…The conversion sensitivity of pure PVDF was 0.091 V/N compared to 0.153 V/N for the PVDF-ZnO/ZnS composite [15]. P(VDF-HFP) filled with polyaniline and methylammonium lead iodide (CH 3 NH 3 PbI 3 ) exhibited an open-circuit piezoelectric voltage output of 5 V and an output power of 8.2 nW [10].…”