Spontaneous polarization in van der Waals materials: Two-dimensional ferroelectrics and device applications
Spontaneous polarization in van der Waals materials: Two-dimensional ferroelectrics and device applications
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DOI：
10.1063/5.0116445
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发表时间：
2022-09
影响因子：
3.2
通讯作者：
K. Lai
中科院分区：
文献类型：
--
作者：
K. Lai
二维货车范德华铁电体的研究在过去的十年里得到了长足的发展。这些层状材料与传统的薄膜氧化物铁电体的不同之处在于表面和界面没有悬挂键。一些还可能具有不寻常的属性，如带隙可调谐性，机械柔性和高载流子迁移率，这是在纳米电子学和光电子学中的应用所期望的。本文首先回顾了二维铁电研究的理论工具，然后讨论了材料合成和样品表征。几个具有创新功能的原型电子设备将被重点介绍。读者可以通过本文对2D铁电材料的现状、挑战和未来前景有一个基本的了解。
The research on two-dimensional (2D) van der Waals ferroelectrics has grown substantially in the last decade. These layered materials differ from conventional thin-film oxide ferroelectrics in that the surface and interface are free from dangling bonds. Some may also possess uncommon properties, such as bandgap tunability, mechanical flexibility, and high carrier mobility, which are desirable for applications in nanoelectronics and optoelectronics. This Tutorial starts by reviewing the theoretical tools in 2D ferroelectric studies, followed by discussing the material synthesis and sample characterization. Several prototypical electronic devices with innovative functionalities will be highlighted. Readers can use this article to obtain a basic understanding of the current status, challenges, and future prospects of 2D ferroelectric materials.