Abstract
This study reports a single-phase solid-solution of barium titanate- bismuth ferrite (1-x) BaTiO3-xBiFeO3 (x = 0.0, 0.1, 0.2 and 0.3, abbreviated as BTO, BTBF1, BTBF2 and BTBF3) composition fabricated via conventional solid-state reaction technique. The BFO modified BTO ceramics exhibit a single perovskite structure with pseudo-cubic (x ≥ 0.1) symmetry, and the c/a ratio decreases with an increase in BFO content. Dielectric studies suggest that the ferroelectric-paraelectric phase transition around 150 °C for BTBF1 ceramic increases to 180 °C for BTBF3 ceramic, attributed to the higher transition temperature of BFO ceramic. The temperature-dependent impedance studies suggest non-Debye type relaxation and NTCR (negative temperature coefficient of resistance) behavior of the composition. Among the prepared ceramics, BTBF1 ceramic showed an improved energy density of 39.91 mJ/cm3 and energy efficiency of 60.92%. Thus, prepared ceramics can be considered a potential candidate for energy storage applications.
