Temperature‐induced changes of the electrical and mechanical properties of aerosol‐deposited BaTiO3 thick films for energy storage applications

• DOI: 10.1111/jace.18377
• Publication Date: 2022-02-04T04:06:06Z
• Authors: Fangping Zhuo; Udo R. Eckstein; Neamul H. Khansur; Christian Dietz; Daisuke Urushihara; Toru Asaka; Ken‐ichi Kakimoto; Kyle G. Webber; Xufei Fang; Jürgen Rödel
• Keywords: Indentation

Abstract Aerosol deposition (AD) is a room‐temperature film method for the fabrication of scalable ferroelectric ceramic films on different substrates, which particularly appealing thick energy storage applications. However, electrical and mechanical properties AD are not yet satisfactorily understood. Here, we report dielectric, storage, aerosol‐deposited BaTiO 3 (AD‐BT) with nanosized grains by combining macroscopic electric measurements indentation tests. We find that thermal annealing an effective way to improve dielectric permittivity polarization AD‐BT film, as well increase hardness Young's modulus film. crack formation in annealed promoted comparison as‐processed sample, suggesting interplay between release internal stress during may have major consequences hence should be taken into consideration application.