Hydrothermal epitaxial multiferroic BiFeO3 thick film by addition of the PVA

• Published in: Journal of alloys and compounds Vol. 577; pp. 44 - 48
• Main Authors: Si, Hua-Yan, Lu, Wen-lai, Chen, Jing-Sheng, Chow, Gan-Moog, Sun, Xiuguo, Zhao, Jinjin
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 15.11.2013; Elsevier
• Subjects: Alloys; BiFeO3; Chemical vapor deposition (including plasma-enhanced cvd, mocvd, etc.); Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Diffraction; Electrical properties; Epitaxy; Exact sciences and technology; Growth from solutions; Hydrothermal method; Materials science; Methods of crystal growth; physics of crystal growth; Methods of deposition of films and coatings; film growth and epitaxy; Physics; Polyvinyl alcohols; PVA; Reciprocal space; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Synchrotrons; Thin films; Vapor phase epitaxy; growth from vapor phase; BiFeO3; PVA; Hydrothermal method; Electrical properties; Reciprocal space; Epitaxial layers; Epitaxy; Thick films; Reciprocal lattice; Vinyl alcohol copolymer; XRD; Monoclinic lattices; Thin films; CVD; Ferroic material; Monocrystals; Transmission electron microscopy; Hydrothermal synthesis; Physical vapor deposition; Crystal growth from solutions; BiFeO; Synchrotron radiation; Crystal structure
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2013.04.148

Epitaxial BiFeO3 (BFO) thin films were fabricated on (001)-oriented single-crystal SrRuO3(SRO)/SrTiO3(STO) structures by PVA-assistant hydrothermal method. The electrical properties observed in BFO (001) thin films are superior to those of hydrothermal epitaxy reported previously, which indicates PVA plays an important role in fabricating BFO films by using hydrothermal method. [Display omitted] •We grow BiFeO3 thick film by hydrothermal method.•PVA as assistant agent epitaxially grow BiFeO3 thick film.•The ferroelectric properties of BiFeO3 thick film were measured.•The electrical properties observed in BFO (001) thin films are superior to those of hydrothermal epitaxy reported previously. Hydrothermal method is a much simpler method of epitaxial multiferroic BiFeO3 (BFO) film than physical/chemical vapor deposition methods. In this work, epitaxial BFO thin films were fabricated on (001)-oriented single-crystal SrRuO3(SRO)/SrTiO3(STO) structures by PVA-assistant hydrothermal method. The results of θ–2θ scan, ω scan and reciprocal space mappings (RSMs) measured by synchrotron high resolution X-ray diffraction and high-resolution transmission electron microscopy (HRTEM) suggest that the BFO films have relaxed to a single-phase monoclinic structure. The electrical properties observed in BFO (001) thin films are superior to those of hydrothermal epitaxy reported previously, which indicates PVA plays an important role in fabricating BFO films by using hydrothermal method.