Synthesis and Characterization of Bowl-Like Single-Crystalline BaTiO3 Nanoparticles
1 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, 430070, Wuhan, People’s Republic of China
2 School of Materials Science and Engineering, Wuhan University of Technology, 430070, Wuhan, People’s Republic of China
Nanoscale Research Letters 2010, 5:1217-1221 doi:10.1007/s11671-010-9629-7Published: 16 May 2010
Novel bowl-like single-crystalline BaTiO3 nanoparticles were synthesized by a simple hydrothermal method using Ba(OH)2·8H2O and TiO2 as precursors. The as-prepared products were characterized by XRD, Raman spectroscopy, SEM and TEM. The results show that the bowl-like BaTiO3 nanoparticles are single-crystalline and have a size about 100–200 nm in diameter. Local piezoresponse force measurements indicate that the BaTiO3 nanoparticles have switchable polarization at room temperature. The local effective piezoelectric coefficient is approximately 28 pm/V.