Department of Materials Science & Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
Nanoscale. 2013 Oct 7;5(19):8752-80. doi: 10.1039/c3nr02543h. Epub 2013 Aug 5.
In this review, the main concept of ferroelectricity of perovskite oxides and related materials at nanometer scale and existing difficulties in the synthesis of those nanocrystals are discussed. Important effects, such as depolarization field and size effect, on the existence of ferroelectricity in perovskite nanocrystals are deliberated. In the discussion of modeling works, different theoretical calculations are pinpointed focusing on their studies of lattice dynamics, phase transitions, new origin of ferroelectricity in nanostructures, etc. As the major part of this review, recent research progress in the facile synthesis, characterization and various applications of perovskite ferroelectric nanomaterials, such as BaTiO₃, PbTiO₃, PbZrO₃, and BiFeO₃, are also scrutinized. Perspectives concerning the future direction of ferroelectric nanomaterials research and its potential applications in renewable energy, etc., are presented. This review provides an overview in this area and guidance for further studies in perovskite ferroelectric nanomaterials and their applications.
在这篇综述中，讨论了钙钛矿氧化物和相关纳米材料的铁电性的主要概念以及这些纳米晶体合成中存在的困难。讨论了铁电体在钙钛矿纳米晶体中存在的重要影响，如去极化场和尺寸效应。在对建模工作的讨论中，重点指出了不同的理论计算，它们集中研究了晶格动力学、相变、纳米结构中铁电性的新起源等。作为这篇综述的主要部分，还详细研究了钙钛矿铁电纳米材料（如 BaTiO3、PbTiO3、PbZrO3 和 BiFeO3）的简便合成、表征和各种应用的最新研究进展。还提出了关于铁电纳米材料研究及其在可再生能源等领域的潜在应用的未来方向的观点。这篇综述提供了该领域的概述，并为钙钛矿铁电纳米材料及其应用的进一步研究提供了指导。
