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Research Article

Shape-controlled growth of SrTiO3 polyhedral submicro/nanocrystals

Lingqing Dong1,2,§, Hui Shi3,§, Kui Cheng1, Qi Wang3, Wenjian Weng1,4( ), Weiqiang Han1,2,5( )
Department of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and ApplicationsZhejiang UniversityHangzhou310027China
Ningbo Institute of Materials Technology & EngineeringChinese Academy of SciencesNingbo315210China
Soft Matter Research Center and Department of ChemistryZhejiang UniversityHangzhou310027China
Shanghai Institute of CeramicsChinese Academy of SciencesShanghai200050China
School of Physical Science and TechnologyShanghaiTech UniversityShanghai200031China

§ These authors contributed equally to this work.

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Graphical Abstract

Abstract

A series of SrTiO3 polyhedral submicro/nanocrystals with systematic morphology evolution from cubic to edge-truncated cubic and truncated rhombic dodecahedra have been synthesized by using a series of alcohol molecules with different acidities as surfactants. The concentration and pKa value of the alcohols both play important roles in determining the size and shape of the SrTiO3 polyhedral submicro/nanocrystals. The adsorption energy of alcohol molecules on SrTiO3 {110} facets depends on their pKa values, which are therefore critical for morphology control. Using the same strategy, a series of BaTiO3 polyhedral submicro/nanocrystals with systematic morphology evolution have also been successfully prepared.

Keywords

SrTiO3BaTiO3shape-controlled growthalcohol moleculespKa values

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Nano Research
Volume 7 Issue 9,
September 2014
Pages 1311-1318
DOI: 10.1007/s12274-014-0495-y
Cite this article:
Dong L, Shi H, Cheng K, et al. Shape-controlled growth of SrTiO3 polyhedral submicro/nanocrystals. Nano Research, 2014, 7(9): 1311-1318. https://doi.org/10.1007/s12274-014-0495-y

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Received: 10 February 2014
Revised: 04 May 2014
Accepted: 11 May 2014
Published: 05 August 2014
© Tsinghua University Press and Springer‐Verlag Berlin Heidelberg 2014
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