Issue 7, 2013

Shape-controlled hydrothermal synthesis of ferroelectric Bi4Ti3O12 nanostructures

Abstract

Single-crystalline Bi4Ti3O12 (BIT) nanostructures with various morphologies including nanoplates, lamellae, nanobelts and nanorods have been controllably synthesized by a facile hydrothermal process. The structure and morphology characterizations of BIT were investigated by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high-resolution TEM (HRTEM). The type of mineralizer and concentration play an important role on the structure and morphology of BIT products. A possible growth mechanism has been proposed by time-dependent experiments. In addition, UV-Vis absorption spectra have shown that the as-synthesized BIT samples have a slightly red-shift behavior. The piezoelectricity of BIT nanoplates and lamellae are confirmed by piezoresponse force microscopy. Local piezoresponse force measurements display a typical butterfly curve, indicating good ferroelectric property of the BIT nanoplates and lamellae.

Graphical abstract: Shape-controlled hydrothermal synthesis of ferroelectric Bi4Ti3O12 nanostructures

Supplementary files

Article information

Article type
Paper
Submitted
20 Aug 2012
Accepted
28 Nov 2012
First published
30 Nov 2012

CrystEngComm, 2013,15, 1397-1403

Shape-controlled hydrothermal synthesis of ferroelectric Bi4Ti3O12 nanostructures

F. Wang, J. Wang, X. Zhong, B. Li, J. Liu, D. Wu, D. Mo, D. Guo, S. Yuan, K. Zhang and Y. Zhou, CrystEngComm, 2013, 15, 1397 DOI: 10.1039/C2CE26330K

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