Academic Journal of Materials & Chemistry, 2025, 6(2); doi: 10.25236/AJMC.2025.060204.
Jiahua Wei, Wenlong Liu
School of Electronic Information and Artificial Intelligence, Shaanxi University of Science and Technology, Xi’an, 710021, China
In the field of multifunctional electronic components, the multiferroic material BiFeO3 which exhibits both ferroelectricity and ferromagnetism at room temperature, has become a research hotspot. In this study, the sol-gel method was employed to prepare Bi0.89Tb0.11Fe0.96Mn0.02Co0.02O3/ZnFe2O4 (BTFMCO/ZFO) bilayer films with different layer ratios on FTO substrates, and the effects of different layer ratios on the ferroelectric and ferromagnetic properties of the films were investigated. The change in different layer ratios can cause significant variations in the relative intensities of the diffraction peaks of the BFO phase and the ZFO phase, which can be attributed to the stress-strain effect caused by the mismatched lattice layers between the two phases. Through a comprehensive evaluation of the leakage current, dielectric constant, and ferroelectric properties of five groups of composite films, we found that the BTFMCO-ZFO composite film with a layer ratio of 12/1 exhibits the most excellent electrical performance.
BiFeO3, Thin films, Ferroelectricity, Ferromagnetism, Sol-gel
Jiahua Wei, Wenlong Liu. Preparation and Properties of Composite Films with Different Layer Ratios. Academic Journal of Materials & Chemistry(2025), Vol. 6, Issue 2: 33-36. https://doi.org/10.25236/AJMC.2025.060204.
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