Photocatalytic and magnetic behaviors of BiFeO3 thin films deposited on different substrates
作者： Hao-Min Xu , Huan-Chun Wang , Yang Shen , Yuan-Hua Lin , Ce-Wen Nan
DOI: 10.1063/1.4901066
关键词:
摘要: Single phase polycrystalline BiFeO3 thin films were grown on three different substrates via chemical solution deposition. Our results indicate that the band gap of as-prepared can be tuned (2.02–2.67 eV) by grain size effects caused substrates. These show good photocatalytic properties degradation Congo red under visible-light irradiation ( λ > 400 nm). Additionally, weak ferromagnetic behaviors observed at room temperature in all films, which should correlated to destruction incommensurate cycloid spin structure and coexistence Fe3+ Fe2+ as confirmed X-ray photoelectron spectroscopy.
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