A New Approach for the Fabrication of Tetragonal BaTiO3 Nanoparticles

Author:

Tan Vu T.1,Vinh La The1,Khoi Vu Minh1,Chinh Huynh Dang1,Tuan Pham Van2,Khiem Tran Ngoc2

Affiliation:

1. School of Chemical Engineering, Hanoi University of Science and Technology, No. 1 Dai Co Viet, Hanoi, 10000, Vietnam

2. International Institute for Materials Science, Hanoi University of Science and Technology, No. 1 Dai Co Viet, Hanoi, 10000, Vietnam

Abstract

For the first time, the BaTiO3 nano-sized particles were obtained through solid-state reaction by employing the titanium oxide nanoparticle. Meanwhile, by using TiO2 with micro-sized particles, the synthesized BaTiO3 shows the micro-sized. The XRD pattern confirms that both BaTiO3 nano-sized and micro-sized particles display the tetragonal structure. Both SEM and TEM analysis revealed that the size of the nano-sized material is in the range of 30–50 nm; in the meantime, the microsized material shows a size of 500 nm. The Eg of both BaTiO3 micro-sized and nano-sized were calculated by using the Kubelka-Munk function. The shifted bandgap of BaTiO3 nano-sized particle is nearly 0.24 eV larger than that of BaTiO3 miro-sized particle due to the particle size effect. The P-E measurement of n-BaTiO3 proved that the obtained BaTiO3 nano-sized is ferroelectric material. The result may provide a new route for the fabrication of barium titanate nanoparticle with ferroelectric properties.

Publisher

American Scientific Publishers

Subject

Condensed Matter Physics,General Materials Science,Biomedical Engineering,General Chemistry,Bioengineering

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