2D perovskite nanosheets with thermally-stable high?κ response: A new platform for high-temperature capacitors

Yoon Hyun Kim, Hyung Jun Kim, Minoru Osada, Bao Wen Li, Yasuo Ebina, Takayoshi Sasaki

研究成果: Article査読

26 被引用数 (Scopus)

抄録

We investigated high-temperature dielectric responses of high-κ perovskite nanosheet (Ca2Nb3O10), an important material platform for postgraphene technology and ultrascale electronic devices. Through in situ characterizations using conducting atomic force microscopy, we found a robust high-temperature property of Ca2Nb3O10 nanosheet even in a monolayer form (∼2 nm). Furthermore, layer-by-layer assembled nanocapacitors retained both size-free high-εr characteristic (∼200) and high insulation resistance (∼1 × 10-7 A/cm2) at high temperatures up to 250 °C. The simultaneous improvement of εr and thermal stability in high-κ nanodielectrics is of critical technological importance, and perovskite nanosheet has great potential for a rational design and construction of high-temperature capacitors. (Figure Presented).

本文言語English
ページ(範囲)19510-19514
ページ数5
ジャーナルACS Applied Materials and Interfaces
6
22
DOI
出版ステータスPublished - 2014 11 26

ASJC Scopus subject areas

  • Materials Science(all)

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