ENHANCEMENT OF BETA PHASE CRYSTALS FORMATION WITH THE USE OF NANOFILLERS IN PVDF FILMS

Abstract

This study investigates the synergistic effect of perovskite incorporation on the formation of beta-phase crystals in polyvinylidene fluoride (PVDF) films, aiming to enhance the overall piezoelectric coefficient. The use of PVDF as a polymer is due to its unique piezoelectric properties and compatibility with various processing techniques. However, achieving a high content of beta-phase crystals in PVDF films remains a challenge, limiting its potential for efficient use in high-end applications such as various sensors, capacitors, and nanogenerators. In this study, the nucleation and development of beta-phase crystals are facilitated by the introduction of perovskite, which is well-known for its superior optoelectronic capabilities, into the PVDF matrix. To provide a homogeneous dispersion inside the PVDF matrix, the perovskite concentration and inclusion techniques must be carefully optimized during the production process. The resultant films' shape, chemical makeup, and crystalline structure are all examined using techniques including scanning electron microscopy (SEM), Fourier transform infrared (FTIR), and X-ray diffraction (XRD). The experimental results demonstrate a significant improvement in the formation of beta-phase crystals in PVDF films with the incorporation of perovskite. The enhanced crystallinity is expected to lead to improved piezoelectric properties. Additionally, the impact of perovskite on the mechanical and thermal properties of the composite films is investigated to ensure the overall stability and durability of the material in practical applications.