Using high-throughput processing and characterization methods to investigate the role of synthesis conditions on the energy storage properties of a high entropy oxide

Abstract High-entropy perovskite oxides have attracted considerable interest for their temperature stability and energy storage properties, making them ideally suited for high energy density ceramic capacitors. Introducing chemical disorder in polar oxides, such as (Bi 0.2 Na 0.2 Ba 0.2 Sr 0.2 Ca 0.2 )TiO 3 (BNBSCT), can be an effective strategy in tuning the hysteretic response. Despite this, there is little understanding about the processing-induced variations in the properties. To investigate this, high-throughput synthesis platforms offer significant unrealized potential for materials development that has been limited by the complexity of accelerating solid-state workflows. In this study, we present a high-throughput solid-state synthesis and characterization approach to investigate the role of calcination and sintering temperatures on the resulting macroscopic dielectric and energy storage properties of BNBSCT. These data show that the calcination temperature influences the energy storage properties, even at the same sintering conditions, as well as an apparent threshold in dielectric loss, below which the energy storage properties are enhanced.