Synthesis of Single-Crystalline Perovskite Nanorods Composed of Barium Titanate and Strontium Titanate

• Published in: Journal of the American Chemical Society Vol. 124; no. 7; pp. 1186 - 1187
• Main Authors: Urban, Jeffrey J, Yun, Wan Soo, Gu, Qian, Park, Hongkun
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 20-02-2002
• Subjects: Chemistry; Colloidal state and disperse state; Exact sciences and technology; General and physical chemistry; General, apparatus, technics of preparation; Ternary compound; Transmission electron microscopy; Barium titanate; Perovskite type compound; Electron diffraction; Transition metal Compounds; Strontium titanates; Titanium compound; Experimental study; Nanostructured materials; Alkaline earth metal Compounds
• ISSN: 0002-7863; 1520-5126
• DOI: 10.1021/ja017694b

We report the solution-based synthesis of single-crystalline nanorods composed of barium titanate (BaTiO3) and strontium titanate (SrTiO3), which yields well-isolated nanorods with diameters ranging from 5 to 60 nm and lengths reaching up to >10 μm. Electron microscopy and diffraction measurements show that these nanorods are composed of single-crystalline cubic perovskite BaTiO3 and SrTiO3 with a principal axis of the unit cell preferentially aligned along the wire length. These BaTiO3 and SrTiO3 nanorods should provide promising materials for fundamental investigations on nanoscale ferroelectricity, piezoelectricity, and paraelectricity.