Novel lead-free BCZT-based ceramic with thermally-stable recovered energy density and increased energy storage efficiency

The eco-responsible lead-free piezoelectric ceramics have been intensively searched for more than a decade, however, the final goal to replace toxic like lead zirconate titanate (PZT) with compounds, having comparable or even better performance has not yet reached. In this road, Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT), possessing excellent dielectric, ferroelectric, and properties are regarded as serious candidates PZT replacement. Besides, nanostructuring BCZT is of paramount importance enhance these functionalities more. Here, multipodes designed by template-growth hydrothermal synthesis using hydrogen nanowires. We demonstrate that fabricated exhibit high dielectric permittivity 5300 temperature stability coefficient ±5.9% between 20 140 °C. A significant recovered energy density 315.0 mJ/cm3 thermal storage efficiency 87.4%, enhanced large-signal d33? (310 pm/V) found. Compared traditional reported in literature, relying on high-temperature processing, our sample exhibits boosted parameters at much lower temperature. These outcomes may offer new strategy tailor relaxor ferroelectrics toward superior ceramic capacitor applications.