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Lead‐free dielectric capacitors have attracted significant research interest for high‐power applications due to their environmental benefits and ability to meet the demanding performance requirements of electronic devices. However, the development of lead‐free ceramic dielectrics with outstanding energy storage performance remains a challenge. In this study, environmentally friendly ceramic dielectrics...
High‐performance lead‐free piezoelectric thin films are urgently required for microelectromechanical systems. In this study, thin films based on the 0.8Bi0.5Na0.5TiO3–0.2(Sr0.7Bi0.2□0.1)TiO3 system were prepared on Pt(111)/TiOx/SiO2/Si substrates by a sol–gel method. The large lattice distortions were induced by introducing five rare‐earth ions with different ionic radii (Er/Pr/Sm/Nd/La) to achieve...