High-temperature dielectric responses of molecularly-thin titania nanosheet
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- KIM Yoon-Hyun
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS) Graduate School of Advanced Science and Engineering, Waseda University
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- OSADA Minoru
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS) Graduate School of Advanced Science and Engineering, Waseda University
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- DONG Lei
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS) Graduate School of Advanced Science and Engineering, Waseda University
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- KIM Hyung-Jun
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS)
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- SASAKI Takayoshi
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS)
抄録
We have investigated high-temperature dielectric properties of titania nanosheet (Ti0.87O2), a new class of high-κ nanomaterials derived from the exfoliation of layered compounds. In-situ characterizations using atomic force microscopy indicate a robust insulating property in a monolayer form of Ti0.87O2 nanosheets even at 200°C. Furthermore, layer-by-layer assembled nanocapacitors exhibit both size-free high-εr characteristic (~120) and high insulation resistance (~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 importance for applications of high-temperature capacitors.
収録刊行物
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- Journal of the Ceramic Society of Japan
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Journal of the Ceramic Society of Japan 123 (1437), 335-339, 2015
公益社団法人 日本セラミックス協会
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詳細情報 詳細情報について
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- CRID
- 1390001205287732352
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- NII論文ID
- 130005068651
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- ISSN
- 13486535
- 18820743
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可