Abstract
In the present study, SnO2-modified Bi0.5(Na0.8K0.2)0.5TiO3 (BNKT) ceramics were fabricated by the conventional solid-state reaction. In order to adjust its sintering behavior and energy storage properties of BNKT ceramics, SnO2 doping contents varied at 0.0 ÷ 0.04 M. A suitable amount of SnO2 improved the dielectric properties, affected the relaxor behavior, reduced the energy loss, and also optimized the energy storage performance of BNKT ceramics. Especially, the optimized synthesis procedure for SnO2-modified Bi0.5(Na0.8K0.2)0.5TiO3 ceramics resulted in enhanced the energy storage density of 300% and the energy storage efficiency of 59.1%, respectively. The results suggest that lead-free SnO2-modified Bi0.5(Na0.8K0.2)0.5TiO3 ceramics should be good candidates for energy storage applications in the future.
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