International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki, Japan.
Adv Mater. 2012 Jan 10;24(2):210-28. doi: 10.1002/adma.201103241. Epub 2011 Oct 14.
Two-dimensional (2D) nanosheets, which possess atomic or molecular thickness and infinite planar lengths, are regarded as the thinnest functional nanomaterials. The recent development of methods for manipulating graphene (carbon nanosheet) has provided new possibilities and applications for 2D systems; many amazing functionalities such as high electron mobility and quantum Hall effects have been discovered. However, graphene is a conductor, and electronic technology also requires insulators, which are essential for many devices such as memories, capacitors, and gate dielectrics. Along with graphene, inorganic nanosheets have thus increasingly attracted fundamental research interest because they have the potential to be used as dielectric alternatives in next-generation nanoelectronics. Here, we review the progress made in the properties of dielectric nanosheets, highlighting emerging functionalities in electronic applications. We also present a perspective on the advantages offered by this class of materials for future nanoelectronics.
二维（2D）纳米片具有原子或分子厚度和无限的平面长度，被视为最薄的功能纳米材料。近年来，操纵石墨烯（碳纳米片）的方法的发展为二维系统提供了新的可能性和应用，许多令人惊叹的功能，如高电子迁移率和量子霍尔效应已经被发现。然而，石墨烯是一种导体，而电子技术也需要绝缘体，这对于许多设备如存储器、电容器和栅介质至关重要。随着石墨烯的发展，无机纳米片也越来越引起基础研究的兴趣，因为它们有可能成为下一代纳米电子学中的介电替代材料。在这里，我们综述了介电纳米片的性能研究进展，突出了电子应用中新兴的功能。我们还对这类材料在未来纳米电子学中的优势提出了展望。
