Recently, the research team of Zhu Xuebin, a researcher of the Functional Materials Laboratory of the Institute of Solid Physics, Hefei Academy of Material Sciences, Chinese Academy of Sciences, and the group of professor Cheng Zhenxiang of the University of Wollongong, Australia, have made progress in the research of BiFeO3 (BFO) thin film, based on the exploration of the preparation technology of BFO thin film Combined with the research of the research group on the preparation of BFO thin films in recent years, the progress of large-scale and high-quality BFO thin films prepared by low-cost solution method is reviewed. Related work was published in Small magazine as Review paper under the title of Chemical Solution Route for High-Quality Multiferroic BiFeO3 Thin Films.
Room temperature single-phase multi-iron material BFO ​​has rich physical and chemical properties, which makes it have important application value in many fields. High-quality, large-area BFO film is the basis of this material application. The paper outlines the current status, trends and shortcomings of BFO film preparation. The article points out that the development of the full solution method for the preparation of high-quality BFO films is conducive to promoting the application of the film in the field of ferroelectricity. The full solution method and the modulation of process parameters, including film thickness, stoichiometric ratio, sintering atmosphere, electrode materials, etc. High-quality BFO film. The article also puts forward some suggestions for the research on the preparation of BFO film by solution method, including in-depth understanding of the process-structure-performance relationship of BFO film, preparation of ultra-thin BFO film, and multi-field control of BFO film.
The above research was supported by the National Key R & D Program and the National Natural Science Foundation of China.
Results of ferroelectric properties of BFO thin films with different epitaxial orientations prepared by the all-chemical solution method.
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