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Open Access Nano Express

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

Zhao Deng1, Ying Dai1*, Wen Chen1, Xinmei Pei2 and Jihong Liao2

Author Affiliations

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

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Nanoscale Research Letters 2010, 5:1217-1221  doi:10.1007/s11671-010-9629-7

Published: 16 May 2010

Abstract

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.

Keywords:
BaTiO3; Bowl-like; Single-crystalline; Piezoelectric properties