, Volume 5, Issue 7, pp 1217-1221,
Open Access This content is freely available online to anyone, anywhere at any time.
Date: 16 May 2010

Synthesis and Characterization of Bowl-Like Single-Crystalline BaTiO3 Nanoparticles


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 \( d_{33}^{ * } \) is approximately 28 pm/V.