Pure Polyvinylidene Fluoride Research Articles

Recent Progress in Hybridized Nanogenerators for Energy Scavenging.

SummaryAs the world's demand for alternative energy increases, the development of green energy harvesters becomes ever more important. As a result, the creation of triboelectric (TENG), piezoelectric (PENG), and pyroelectric nanogenerators, electromagnetic generators (EMG), solar cells, and electrochemical cells is attracting interest in an effort to convert mechanical, thermal, magnetic, solar, and chemical energy into electricity. In order to take advantage of the ambient energies from our surrounding environment, the design of hybridized generator units that can simultaneously scavenge energy in a variety of forms continues to develop. These systems are being considered to satisfy the energy needs of a range of electronic devices and adapt to a variety of working environments. This review demonstrates the latest progress in hybridized nanogenerators in accordance with their structure, operating principle, and applications. These studies demonstrate new approaches to developing hybrid techniques and novel assemblies for efficiently harvesting environmental energy from a number of sources.

Effect of Composite Multi-Walled Carbon Nanotube and Zeolitic Imidazolate Framework-8 on the Performance and Fouling of PVDF Membranes

The incorporation of nanoparticles into a polymer membrane has been an attractive option to minimize the membrane fouling. Polyvinylidene fluoride (PVDF) nanocomposite membranes incorporated with multi-walled carbon nanotubes (MWCNTs) and zeolitic imidazolate framework-8 (ZIF-8) was prepared in this work via the blending method. The impact of the concentration of inorganic additives (0.1 wt.%, 0.3 wt.% and 0.5 wt.%) on the membrane properties was studied. The prepared membranes were characterized using scanning electron microscopy-energy dispersive X-ray spectrometry (SEM-EDX) and goniometer to investigate changes in membrane properties. Water permeability and filtration performance test were performed using pure water, bovine serum albumin (BSA) and humic acid (HA) solution to evaluate the fouling resistance of the prepared membranes. Even though the permeate fluxes decreased over time, it was found that 0.5 wt.% of ZIF-8 in PVDF membrane produced the highest solute rejection for both HA (>94%) and BSA (>92%) as compared with PVDF/MWCNT membranes and pure PVDF membrane. It is concluded that the nanocomposite membranes showed improvement in the membrane hydrophilicity, permeability, and solute rejection as compared to the pure PVDF membrane. The anti-fouling properties of nanocomposite membranes was enhanced with higher flux recovery rate and lower flux declining rate compared to the pristine PVDF membrane.

Modulation in polymer properties in PVDF/BCZT composites with ceramic content and their energy density capabilities

AbstractThe lead‐free 0.5((Ba0.7Ca0.3)TiO3)‐0.5(Ba(Zr0.2Ti0.8))O3(BCZT) piezoceramics were synthesized using sol‐gel method. The Rietveld analysis of X‐ray diffraction (XRD) data and differential scanning calorimetry (DSC) studies of as‐synthesized BCZT powder suggests the co‐existence of ferroelectric orthorhombic (O) and tetragonal (T) phases at room temperature (RT). The value of curie temperature (TT‐C) as depicted from DSC and dielectric studies was found to be ≈ 110°C. The BCZT ceramic particles were dispersed in the polyvinylidene fluoride (PVDF) matrix, an electroactive polymer with great ferro/piezoelectric response in its distinct β and γ phases, to form ferroelectric ceramic‐polymer composites for their applications in flexible energy storage capacitors. The present work reports the Fourier‐transform infrared spectroscopy (FTIR), XRD, dielectric, ferroelectric, and energy density properties of PVDF/BCZT composite films having different wt% of BCZT content fabricated by the solution‐cast technique. The FTIR and XRD studies depict the γ‐PVDF and pure BCZT phases in composite films. The dielectric studies estimated the relative permittivity (εr) of a composite film with 50 wt% of BCZT content to be ≈ 31 (at 120 Hz) which was about three times as compared with that of pure PVDF. The dielectric loss (tan δ) was maximum ≈ 0.15 (at 120 Hz) for 50 wt% BCZT composition. The ferroelectric studies and energy storage calculations showed that the value of remnant polarization (Pr), coercive field (Ec) and energy storage density (W) attain the maximum value of 0.63 μC/cm2, 21.20 kV/cm, and 70.46 mJ/cm3, respectively for the film sample having 40 wt% BCZT content. The maximum energy storage efficiency, η (%) is calculated to be ≈ 60 for 50 wt% BCZT composition. The results indicated that the incorporation of BCZT particles in the PVDF matrix improved the overall polarization (polar and interfacial) which enhance the electric properties of composite films. The ferroelectric studies with temperature revealed the PVDF/BCZT composition‐dependent polymer or ceramic dominance in the behavior of composite films. With the maximum value of relative permittivity (εr) and energy storage efficiency (η), the PVDF/BCZT composition with 50 wt% of BCZT content has been optimized for applications in flexible energy storage capacitors.

Pervaporation separation of isopropylbenzene from water using four different polymeric membranes: Membrane preparation, modification, characterization, and performance evaluation

In the present study, for the first time, the separation of isopropylbenzene as a volatile organic compound (VOC) from water was investigated through the pervaporation (PV) process. Polyvinylidene fluoride (PVDF), polydimethylsiloxane (PDMS), polyether block amide (PEBA), and ethylene-propylene-diene monomer (EPDM) polymers were utilized in the preparation of PV membranes, and their performance and properties were compared. With respect to the results, the PVDF membranes had the highest PV separation index (PSI) equal to 66,486.6 g/m2h. In addition, this membrane had the highest Young's modulus and tensile strength, together with a low swelling degree. However, it had the lowest water contact angle and thus, was further modified. For this purpose, for the first time, Span 85 was used as an additive in the structure of PV membranes. The membrane characterizations implied the increased hydrophobicity and decreased swelling of the PVDF/Span 85 membrane in comparison with the pure PVDF membrane. The PV results revealed that the addition of 2 wt% Span 85 to the PVDF membrane was followed by an improvement in the separation factor so that it resulted in increased PSI (105,761.9 g/m2h).

Dielectric relaxations and optical properties of polyvinylidene fluoride/chitosan films

Polyvinylidene fluoride (PVDF) was blended with different ratios (5%, 7%, and 10% w/w) of chitosan (CS). The dielectric properties of pure PVDF and CS/PVDF films were investigated in (30 °C–140 °C) and (102 Hz–106 Hz) ranges. Both frequency and temperature dependence of the real part, M′, and the imaginary part, M″, of the dielectric modulus were analyzed. The ac conductivity (σac) of all samples was studied to throw light on the conduction mechanism. Results of the UV–vis spectra of the films were discussed to determine important optical parameters when CS is blended with PVDF. There is a good consistency between the dielectric and optical results.

Incorporation of elaborately Synthesized BNNSs by a mild mechanical stirring process for the concurrent enhancement of thermal conductivity and dielectric breakdown strength of PVDF

Due to the growing energy demands, it is highly desirable to concurrently improve the thermal conductivity and dielectric breakdown strength of dielectric film capacitors. Polyvinylidene fluoride (PVDF) is hitherto regarded as a most satisfactory alternative for dielectric capacitors but with relatively low thermal conductivity and dielectric breakdown strength. Herein, a major contribution is made to the concurrent enhancement of PVDF-based thermal conductivity and dielectric properties. It can be readily achieved through the incorporation of as-prepared high-quality few-layered boron nitride nanosheets (BNNSs) with a minimized loading (defined as PVDF-BNNSs). BNNSs dispersion with intact structure and a large aspect ratio is prepared by a unique mild mechanical stirring process assisted by dimethyformamide/1-butanol (DMF/1-butanol) solvent and a low power ultrasonic. Encouragingly, the characteristic breakdown strength with a maximum value of 334 MV/m reaches for PVDF-BNNSs composite only with 3 vol% BNNS loading, to be 1.6 times of pure PVDF. It also presents a high discharged energy density up to 9.9 J cm-3, along with an efficiency of 68.3%. Synchronously, the thermal conductivity accomplishes a high value of 1.12 W/m·K with only 8 vol% BNNS loading. A further theoretical analysis reveals that high-quality appropriate BNNSs loading could be preferentially arranged in parallel with PVDF surface. It indicates that BNNSs have good interface compatibility with PVDF, thus to improve its associated performances concurrently.

Preparation of high piezoelectric and flexible polyvinylidene fluoride nanofibers via lead zirconium titanate doping

Nanomechanical properties are extremely critical to the applications of flexible electric devices and energy harvester; however, the direct mechanical measurement of composite nanofibers is challenging and rarely explored. In this work, we apply an effective method to obtain the elastic modulus distribution of lead zirconium titanate (PZT)-doped polyvinylidene fluoride (PVDF) nanofibers via bimodal amplitude modulated-frequency modulated scanning probe microscopy (AM-FM SPM). All the samples exhibit obvious piezoelectric properties, and the mechanical properties are clearly enhanced through doping of PZT. Compared with pure PVDF nanofibers, the composite nanofibers with PZT doping show higher elastic modulus which indicates superior stability under the same bending condition. The enhancement of mechanical properties in composite nanofibers via filler doping pave a way to the design of stable and flexible sustainable energy harvesters.

Microstructures, electrical behavior and energy storage properties of Ag@shell/PVDF-based polymers: different effects between an organic polydopamine shell and inorganic zinc oxide shell

Two kinds of 1D core–shell nanorods silver@polydopamine (Ag@PDA) and silver@zinc oxide (Ag@ZnO) were successfully synthesized and doped into polyvinylidene fluoride (PVDF) to fabricate composites. The different surface modification effects between the organic PDA shell and inorganic ZnO shell on structure and dielectric properties of PVDF composites were investigated. Results indicated that the ZnO shell showed a crystalline structure, while the PDA shell is amorphous. Due to the difference in crystal structure of the coating shell, the Ag@ZnO/PVDF composites showed a better dielectric performance than the Ag@PDA/PVDF composites, while the Ag@PDA/PVDF showed excellent mechanical properties. The crystallized structure of ZnO not only promoted the crystal conversion of PVDF molecules, but also effectively limited the movement of charge carriers in composites. In the case of 10wt% fillers' content and before breakdown strength, the energy storage densities of Ag@PDA/PVDF and Ag@ZnO/PVDF composites are 79.53% and 209.2% higher than that of pure PVDF films, respectively. Moreover, the charge/discharge efficiency of Ag@ZnO/PVDF composite is also higher than that of pure PVDF and Ag@PDA/PVDF composite. When testing at 1800 kV/cm electrical strength, the energy storage density of Ag@ZnO/PVDF composite increases to 4.02 J/cm3.

Experimental and computational investigation of PVDF–$$\hbox {BaTiO}_{{3}}$$ interface for impact sensing and energy harvesting applications

The interfacial polarization between PVDF and $$\hbox {BaTiO}_{{3}}$$ was studied using density functional theory calculations and atomic charge density analysis. A comparative study of dielectric relaxation, thermodynamic properties and impact analysis of the electrospun polyvinylidene fluoride (PVDF) and a 3 $$\%$$ $$\hbox {BaTiO}_{{3}}$$ –PVDF nanofibrous composite are presented. The frequency-dependent dielectric properties revealed the microstructural feature of the composite material. The impedance analysis and Nyquist plots showed a decrease in the bulk resistance of the composite compared to the pure PVDF. The temperature dependence of the electric modulus shows Arrhenius-type behavior. The electric loss modulus relaxation peak shifts towards the high frequency side which indicates a decrease in relaxation time and faster charge carrier dynamics. The observed non-Debye type dielectric relaxation in electric loss modulus follows a thermally activated process, which can be attributed to the polaron hopping effect. The particle-induced crystallization of the PVDF polymer is supported by thermodynamic properties from differential scanning calorimetric measurements. The observed increase in piezoelectric response from high strain rate impact sensing was attributed to the interfacial interaction between PVDF and $$\hbox {BaTiO}_{{3}}$$ .

Flexible polyvinylidene fluoride film with alternating oriented graphene/Ni nanochains for electromagnetic interference shielding and thermal management

Flexible polyvinylidene fluoride (PVDF) films with various heterogeneous alternating multilayer structure (HAMS) containing high-aligned graphene nanosheets and Ni nanochains were designed for electromagnetic interference (EMI) shielding and heat dissipation applications. Because of the unique structure and highly aligned nanofillers, effective electron and phonon conductive paths were formed in HAMS films with optimal electrical and thermal conductivity of 76.8 S/m and 8.96 W/mK, respectively. Combining the high electrical conductivity and the synergetic electromagnetic loss, as well as multi-level electromagnetic multireflection, the optimal HAMS film with thickness of 0.5 mm exhibits a high EMI shielding effectiveness (SE) of 43.3 dB, showing 98.6% increment compared to homogeneous film (21.8 dB), which can further improve to 51.4 dB when increasing the thickness to 0.7 mm. Simultaneously, the highly concentrated and aligned graphene in alternating layers can contribute to the significant improvement in in-plane thermal conductivity of HAMS films with 14.3% and ~1200% increment comparing to the homogeneous film (7.84 W/mK) and pure PVDF (0.69 W/mK), respectively. Considering the outstanding performance and high-efficiency stacking hot-pressing preparation technique, HAMS films with alternating aligned graphene/Ni nanochain layers present a huge potential in practical large-scale application as advanced EMI protection and thermal management materials.

Nanoparticles with rationally designed isoelectronic traps as fillers significantly enhance breakdown strength and electrostatic energy density of polymer composites

Dielectric polymer nanocomposites with a high energy density and high charge-discharge efficiency are urgently in need which enable miniaturization of both electrical and electronic systems. One critical challenge for achieving a high energy density is the suppression of space charge movement in the composites which relates to the dielectric breakdown strength and thus energy density. Herein ZnS:O nanoparticles, in which a part of S in ZnS was substituted by O, were synthesized. The difference of electronegativity (ΔEN = 0.86) between S and O creates isoelectronic traps in the nanoparticles, which can to some extent bind space charges and suppress their movement. As a result, with ZnS:O as fillers and polyvinylidene fluoride (PVDF) as a host, the composites achieved a breakdown strength as high as 6000 kV/cm and an energy density of 14.4 J/cm3 with 2.5 vol% ZnS:O nanoparticles, which are nearly twice and over three times respectively of those of the pure PVDF (Eb ~3183 kV/cm, 4.6 J/cm3), and also much higher than those of ZnS filled PVDF. Moreover, the dielectric loss and leakage current were effectively suppressed, leading to a high charge-discharge efficiency of up to 97%. The present work provides an efficient approach of modulating the dielectric and electric performance of nanocomposites by confining charge carriers in the isoelectric traps. The effect was investigated by calculation of electric field threshold and electron hopping distance. Finite element simulation was employed to understand the mechanism which vividly interprets the above phenomenon.

Graphene oxide-polyethylene glycol incorporated PVDF nanocomposite ultrafiltration membrane with enhanced hydrophilicity, permeability, and antifouling performance

The novel highly hydrophilic composite additive, graphene oxide-polyethylene glycol (GO-PEG, further abbreviated as P-GO), was synthesized from GO and PEG by the esterification reaction. Then, P-GO was blended into a polyvinylidene fluoride (PVDF) casting solution as an additive, and the effects of P-GO on the performance of the PVDF ultrafiltration (UF) membrane were researched. When amount of added P-GO was 0.5 wt%, the flux of the resultant modified membrane (denoted as P/0.5P-GO) reached as high as 93 L m−2·h−1, that is twice than that of the pure PVDF membrane (45 L m−2·h−1). Furthermore, water contact angle results confirmed significantly improved hydrophilicity of the P/0.5P-GO membrane. Results of antifouling tests revealed that the P/0.5P-GO membrane showed the lowest total resistance and irreversible resistance among all the membranes prepared in this study, and after physical cleaning, its flux recovery ratio was the highest—78%. These results demonstrated improved antifouling performance of the P/0.5P-GO membrane. Therefore, it can be concluded that P-GO as an additive material for the PVDF membrane has satisfactory performance in improving the membrane hydrophilicity, permeability, and antifouling performance in practical applications.

Thin films of vinylidene fluoride copolymer with tetrafluoroethylene: dynamics of ferroelectric polarization switching

The vinylidene fluoride copolymer with tetrafluoroethylene P(VDF-TFE) is a typical ferroelectric polymer that has not been sufficiently studied so far in comparison with pure polyvinylidene fluoride (PVDF) and its copolymer with trifluoroethylene. The purpose of this work was to reveal the features of forming ferroelectric polarization and its switching in thin films of P(VDF-TFE) under various conditions, such as the level of the applied electric field and the duration of its action within 8 orders of magnitude from 10 μs to 100 s. The sequence of voltage pulses applied during poling and polarization reversal allowed to reveal the characteristics of the polarization switching dynamics. To increase the resolution of the measurements, two complementary methods of recording electrical induction were used. The features of polarization and space charge relaxation over time have been studied by thermally stimulated depolarization method. A new phenomenon of gradual separation of the relaxation processes associated with polarization and space charge was observed. Both components were accompanied by trapped charges that compensated the depolarizing field. Several practical recommendations have been formulated regarding the desirable values of poling parameters and additional processing to increase the ferroelectric polarization stability.

Nanocomposites of polyvinylidene fluoride copolymer-functionalized carbon nanotubes prepared by electrospinning method

Electrospun nanofiber membranes (ENM) have been utilized in varied applications like filters, sensors, scaffolds for tissue engineering, electronics and so on. In this study, polyvinylidene fluoride (PVDF) copolymer nanofiber was reinforced with functionalized multiwall carbon nanotubes (f-MWCNT) via electrospinning method with N,N-dimethylacetamide (DMAc) as the solvent. To ensure the dispersion of f-MWCNT in polymer solution, it was sonicated prior to addition of PVDF copolymer into the dispersion. The results showed that tensile strength and elongation at break increased by 9 % and 79 %, respectively, with the addition of f-MWCNT, when compared to pure PVDF copolymer nanofiber web. Incorporated f-MWCNT into PVDF copolymer nanofiber also resulted in an increase in the average nanofiber diameter from 312 nm to 445 nm but decrease the hydrophobicity. FTIR spectra and XRD pattern confirmed the increase of PVDF β-phase structure as the results of electrospinning process and addition of MWCNT.

Effect of different forms of nano‐ZnO on the properties of PVDF/ZnO hybrid membranes

AbstractIn this article, polyvinylidene fluoride (PVDF)/ZnO hybrid membranes with different forms of nano‐ZnO as additives were prepared by thermally induced phase separation. The effects of the morphology of ZnO particles on the microstructure and properties of hybrid membranes were systematically investigated. Three different forms of nano‐ZnO were characterized by X‐ray diffraction (XRD) and scanning electron microscope (SEM). Then a series of tests were made through XRD, Fourier transform infrared, differential scanning calorimeter, SEM, energy‐dispersive X‐ray spectroscopy, atomic force microscopy, mechanical strength testing, porosity measurement, water contact angle measurement, pure water flux measurement, rejection measurement, flux recovery rate (FRR) measurement, and photocatalytic degradation testing to characterize the hybrid membrane. The results show that the hybrid membranes which were doped with different forms of ZnO have different structures and properties. Porous ZnO has the best modification effect on PVDF membranes. The PVDF/porous ZnO hybrid membranes' water flux and OVA rejection can reach 1.6 and 1.3 times of pure PVDF membrane, respectively, and its FRR can reach about 95%. The hybrid membrane doped with porous ZnO has excellent self‐cleaning performance, and its degradation rate of MB can reach about 51%.

Graphene oxide assists polyvinylidene fluoride scaffold to reconstruct electrical microenvironment of bone tissue

Polyvinylidene fluoride (PVDF), as a typical piezoelectric polymer, has a great potential in reconstructing the electrical microenvironment of bone tissue. In present study, graphene oxide (GO) was introduced into PVDF scaffold manufactured via selective laser sintering, aiming to enhance piezoelectric effect of PVDF by increasing β phase content. In detail, the oxygen-containing functional groups of GO could form strong hydrogen bonding with fluorine groups of PVDF. The interaction would force the fluorine groups to be arranged in parallel and perpendicular to the polymer chain, thereby inducing the transformation from α phase to β phase. Results demonstrated that the PVDF/0.3GO scaffold with improved β phase exhibited the maximal output voltage (~8.2 V) and current (~101.6 nA), which were improved by 82.2% and 68.2%, respectively, in comparison with pure PVDF. In vitro cell culture confirmed that enhanced electrical charges could significantly improve cell behavior. Moreover, the scaffold presented a 97.9% increase in compressive strength and 24.5% increase in tensile strength, which was attributed to GO reinforcements forming strong interaction with PVDF chains. These positive results suggested that the scaffold might have possible application in bone tissue engineering.

Glowing kaolinite intercalated with N-Methyl imidazole and Eu3+/Tb3+ salts and potential application in UV-to-red light conversion

Kaolinite, one of the most ubiquitous clay minerals on the earth, is a hydrated aluminum disilicate with the composition of Al2Si2O5(OH)4, 1:1 dioctahedral and structurally asymmetric layers. This type of lamella mineral provides a platform to create artificially functional materials. Herein, we present a facile approach to prepare the glowing Kaolinites via a stepwise of intercalation of Kaolinite with N-Methyl imidazole (abbr. NMI) and Eu3+/Tb3+ nitrate salts in sequence, which are labeled as K-NMI-Eu and K-NMI-Tb, respectively, and characterized by microanalysis, thermogravimetric (TG), IR spectroscopy, powder X-ray diffraction techniques. Under ultraviolet irradiation, K-NMI-Eu and K-NMI-Tb emit the characteristic luminescence of Eu3+/Tb3+ ion with quantum yields of 25.5% (Eu3+) and 16.3% (Tb3+), respectively. We further fabricated the composite films of K-NMI-Eu with polyvinylidene fluoride (PVDF), K-NMI-Eu@PVDF-X (X = 1, 2, 5 and 10%, representing the mass percentage of K-NMI-Eu in film). The mechanical performances of composite films are almost the same as that of the pure PVDF film even if the X value is up to 10%. K-NMI-Eu@PVDF-10% emits intense red luminescence under ultraviolet irradiation at ambient condition, indicating that K-NMI-Eu is a good ultraviolet-converted-red light material potentially used for the agricultural light conversion film.

Flexible electrospun PVDF-BaTiO3 hybrid structure pressure sensor with enhanced efficiency.

Ceramic doped-polymer structures as organic and inorganic hybrid structures constitute a new area of advanced materials for flexible and stretchable sensors and actuators. Here, uniform ceramic-polymer composites of tetragonal BaTiO3 and polyvinylidene fluoride (PVDF) were prepared using solution casting to improve the pressure sensitivity. By introducing Ba–TiO3 nanoparticles to PVDF nanofibers, piezoelectricity and pressure sensitivity of hybrid nanofiber mats were significantly improved. In addition, we proposed a novel flexible and stretchable multilayered pressure sensor composed of electrospun nanocomposite fibers with high electrical sensitivity up to 6 mV N−1 compared to 1.88 mV N−1 for the pure PVDF sensors upon the application of cyclic loads at 2.5 Hz frequency and a constant load of 0.5 N. Indeed, this work provides a composition-dependent approach for the fabrication of nanostructures for pressure sensors in a wide variety of wearable devices and technologies.

Development of flexible PVDF/PAMPS polyelectrolyte proton conductive membrane

Progresses in the field of proton conducting polymers have grown very rapidly. A summary of technological growth involving proton conducting polymers indicates that this research area expands at unexpected rates. The paper first introduces the proton conducting polymers and introduces its applications such as used in fabrication of electronic device, thin film transistor (TFT), solar energy conversion, artificial muscles, rechargeable batteries, and solar energy conversion. In this paper, we present and analyse the conductivity of Polyvinylidene fluoride (PVDF)/poly (2-acrylamido-2-methyl-1-propane sulfonic acid) (PAMPS) in frequency range 20 Hz–10 MHz for lithium-ion batteries and battery separator applications. Membrane showing high conductivity has been synthesized by blending PVDF and PAMPS together. Initially the conductivity of pure PVDF membrane was low, but it increased with the addition of PAMPS. The impedance analyser was used to measure dielectric constant, AC conductivity and dissipation factor. In this research paper we have concluded that on adding 60% wt of PAMPs to PVDF; we have got the best result in terms of dielectric constant and conductivity.

In situ-grown organo-lead bromide perovskite-induced electroactive γ-phase in aerogel PVDF films: an efficient photoactive material for piezoelectric energy harvesting and photodetector applications.

The unique combination of piezoelectric energy harvesters and light detectors progressively strengthens their application in the development of modern electronics. Here, for the first time, we fabricated a polyvinylidene fluoride (PVDF) and formamidinium lead bromide nanoparticle (FAPbBr3 NP)-based composite aerogel film (FAPbBr3/PVDF) for harvesting electrical energy and photodetector applications. The uniform distribution of FAPbBr3 NPs in FAPbBr3/PVDF was achieved via the in situ synthesis of FAPbBr3 NPs in the PVDF matrix, which led to the stabilization of the γ-phase. The freeze-drying process induced an interconnected porous architecture in the composite film, making it more sensitive to small mechanical stimuli. Owing to this unique fabrication technique, the constructed aerogel film-based nanogenerator (FPNG) exhibited an output voltage and current of ∼26.2 V and ∼2.1 μA, respectively, which were 5-fold higher than that of the nanogenerator with the pure PVDF film. Also, the sensitivity of FPNG upon the irradiation of light was demonstrated by the output voltage reduction of ∼38%, indicating its capability as a light sensing device. Furthermore, the prepared FAPbBr3/PVDF composite was found to be an efficient candidate for light detection applications. A simple planar photodetector was fabricated with the 8.0 wt% FAPbBr3 NP-loaded PVDF composite, which displayed very high responsivity (8 A/W) and response speed of 2.6 s. Thus, this exclusive combination of synthesis and fabrication for the preparation of electro-active films opens a new horizon in the piezoelectric community for effective energy harvesting and light detector applications.