Fabrication of Flexible Energy Harvesting Device based on BCZT Nanoceramics

Abstract

Barium calcium zirconate titanate (Ba0.85Ca0.15Ti 0.9Zr0.1O3, BCZT) ceramic have been successfully synthesized by the sol-gel method. Thermogravimetry analyzer is used for the confirmation of Calcination temperature of the synthesized BCZT powder i.e. 900℃. The powder calcined at 900℃, to obtain the single-phase perovskite structure. The flexible nanocomposite films of BCZT/ Polyvinylidene fluoride (PVDF) has been fabricated by a solution casting method. The microstructure and the morphology have been studied by SEM and optical microscope. The particles are homogenously dispersed in the PVDF matrix as confirmed by SEM. Optical microscopy images revealed that the PVDF film with 50 wt% is less porous as compared to others. Formation of the ߚ- phase is confirmed by the X-ray diffraction and Fourier transforms infrared (FTIR) spectroscopy. The dielectric constant increases with increase in wt% of BCZT in PVDF. The highest dielectric constant is 91.35 and tanδ is 0.05 at 1 KHz.