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Colossal Permittivity Materials as Superior Dielectrics for Diverse Applications

机译：巨大的介电常数材料可作为多种应用的优良介电材料

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摘要

Ever since the beginning of this century, many kinds of materials have been reported to demonstrate colossal permittivity (CP) or a colossal dielectric constant exceeding 10(3). Accordingly, such CP materials and their further modification and improvement to achieve enhanced CP performance for promising applications in modern electronics, sensors, energy storage, and multifunctional devices have attracted extensive attention. In this Review, a general overview of the recent advances in CP materials is provided, ranging from their various categories, physical mechanisms, and modulation methods to promising applications. First, various classes of CP materials are categorized in terms of their structures and dielectric properties. Subsequently, this Review provides an insight into the CP mechanisms in views of barrier layer capacitance, defect-dipole cluster, and polaronic effect. Moreover, the strategies and prototypical works are introduced in some aspects, including the manipulation of CP properties by doping, percolative capacitors, and the methods employed to enhance the dielectric behaviors in CP materials with different forms. The authors then discuss a wide range of applications based on CP materials, such as modern electronics and energy storage. Finally, the challenges and opportunities for further investigation of CP materials are highlighted in the summary and future perspectives.
机译：自本世纪初以来，已经报道了许多种材料显示出介电常数（CP）或介电常数超过10（3）。因此，这种CP材料及其进一步的改进和改进以实现增强的CP性能，以用于现代电子，传感器，能量存储和多功能设备中的有希望的应用引起了广泛的关注。在本综述中，提供了CP材料最新进展的一般概述，从其各种类别，物理机制，调制方法到有希望的应用，不一而足。首先，根据CP材料的结构和介电性能将其分类。随后，本综述从势垒层电容，缺陷偶极簇和极化子效应的角度提供了对CP机制的见解。此外，在一些方面介绍了策略和原型工作，包括通过掺杂，渗透电容器来控制CP特性，以及用于增强具有不同形式的CP材料的介电性能的方法。然后，作者讨论了基于CP材料的广泛应用，例如现代电子技术和储能。最后，在摘要和将来的观点中强调了对CP产品进行进一步研究的挑战和机遇。

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