Interface thickness optimization of lead-free oxide multilayer capacitors for high-performance energy storage

BCT/BZT multilayer with excellent energy storage performances with optimistic thermal stability has been fabricated using RF-sputtering system. Not only huge energy storage density of 51.8 J cm⁻³ with great efficiency of 81.2% at room temperature has been obtained, but also an optimistic thermal stability from RT to 200 °C has been investigated.