ハイブリッド・レアアース・ダブル・ペロブスキット・リラクソール・フェロエレクトリックスの大きなピエゾ電気反応
Chao Shi1, Jia-Jun Ma1, Jia-Ying Jiang1
1Chaotic Matter Science Research Center, Department of Materials, Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, P. R. China.
Journal of the American Chemical Society
|April 23, 2020
まとめ
ハイブリッド・レアアース・ダブル・ペロブスキットは大きなピエゾ電気反応を示している. これらの無鉛材料は,先進的なピエゾ電気装置に有望な新しいアプリケーションを提供します.
科学分野:
- 材料科学
- 固体物理学
- クリスタルグラフィー
背景:
- ペロブスキットのフェロエレクトリックは,ピエゾ電気的な用途に不可欠です.
- 新興技術では 柔軟性や生物互換性などの 強化された特性を備えたピエゾ電気材料が必要です
- ハイブリッドの有機と無機のペロブスキートは 望ましい特性のユニークな組み合わせを提供します.
研究 の 目的:
- ハイブリッド・レアアース・ダブル・ペロブスキット・フェロエレクトリックのピエゾ電気的可能性を調査する.
- 結晶構造,相共存,およびピエゾ電気的性質の関係を探求する.
- 先進的なピエゾ電気アプリケーションのための新しい無鉛材料を特定する.
主な方法:
- ハイブリッド・レアアース・ダブル・ペロブスキット・フェロエレクトリックの合成と特徴付け
- 変温ピエゾ応答力顕微鏡 (VPFM) でドメインの動態を観察する.
- 鉄電気と鉄弾性相変化の分析
主要な成果:
- (RM3HQ) 2RbLa ((NO3) 6) と (RM3HQ) 2NH4La ((NO3) 6) で大きなピエゾ電気反応 (106 pC N−1) を発見した.
- 広範囲の温度範囲で共存する鉄電極マイクロドメインとパラ電極非極域の観測.
- 重要なピエゾ電気的活動を促進する低エネルギーバリアの特定
結論:
- ハイブリッド・レアアース・ダブル・ペロブスキットは,独特の相性により,重要なピエゾ電気的性質を示している.
- これらの無鉛材料は 次世代のピエゾ電気装置の開発に 有望な道を示しています
- 柔軟で生物互換性のあるピエゾ電気材料を使用する新しいアプリケーションの道を開く.
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