Osada Minoru, Sasaki Takayoshi
International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba 305-0044, Japan.
Dalton Trans. 2018 Feb 27;47(9):2841-2851. doi: 10.1039/c7dt03719h.
We present an overview of recent investigations on the dielectric/ferroelectric properties of Dion-Jacobson-type perovskites, including bulk 3D layered systems and their exfoliated 2D nanosheets. In contrast to the Ruddlesden-Popper and Aurivillius phases, the Dion-Jacobson phases in bulk 3D systems have not been important targets for constructing dielectric/ferroelectric materials. However, recent investigations on Dion-Jacobson phases have provided new impetus to dielectric/ferroelectric materials. Dion-Jacobson perovskites can also facilitate delamination into 2D nanosheets. Layer-by-layer engineering of 2D perovskite nanosheets has a great potential for the rational design of new high-k dielectric/ferroelectric materials and nanodevices.
我们概述了近期对狄翁-雅各布森型钙钛矿介电/铁电性质的研究，包括体相三维层状体系及其剥离的二维纳米片。与鲁德尔斯登-波珀相和奥里维利乌斯相不同，体相三维体系中的狄翁-雅各布森相并非构建介电/铁电材料的重要目标。然而，近期对狄翁-雅各布森相的研究为介电/铁电材料提供了新的动力。狄翁-雅各布森钙钛矿还能促进分层形成二维纳米片。二维钙钛矿纳米片的逐层工程在合理设计新型高介电常数介电/铁电材料和纳米器件方面具有巨大潜力。
