競争力のあるハロゲン結合は,大きなピエゾ電気反応を持つ分子鉄電
Wei-Qiang Liao1,2, Yuan-Yuan Tang2, Peng-Fei Li2
1Institute for Advanced Interdisciplinary Research , Nanjing University of Aeronautics and Astronautics , Nanjing 211106 , P.R. China.
Journal of the American Chemical Society
|February 22, 2018
まとめ
研究者らは,高ピエゾ電気係数 (d33) 139 pC/N の新しい分子フェロ電気,トリメチルクロロメチルアモニウムトリブロモカドミウム (TMCM-CdBr3) を開発した. この発見は,高度なピエゾ電気的応用の可能性を提示しています.
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:
- 分子ピエゾ電気は柔軟性や低重さなどの利点がありますが,しばしば高いピエゾ電気係数がありません.
- バリウムチタナート (BTO) のような伝統的な陶器に匹敵するピエゾ電気係数を分子材料で達成することは依然として課題です.
研究 の 目的:
- 重要なピエゾ電気反応を持つ新しい単軸分子フェロ電気を提示する.
- 有機と無機のハイブリッドシステムにおけるフェロ電力の安定化におけるハロゲン結合の役割を調査する.
主な方法:
- トリメチルクロロメチルアモニアムトリブロモカドミウム (TMCM-CdBr3) の合成と特徴づけ
- 確立された技術を使用してピエゾ電気係数 (d33) を測定する.
- ハロゲン相互作用に焦点を当てた結晶構造と結合の分析.
主要な成果:
- TMCM-CdBr3は,BTOに匹敵する139 pC/Nのピエゾ電気係数 (d33) を有する.
- この値は,LiNbO3とロシェル塩を含むほとんどの単軸電鉄よりも大幅に高い.
- この材料は,単純な成長と特定可能な極軸により,単結晶の応用の可能性を示しています.
結論:
- ハロゲン結合は,TMCM-CdBr3の鉄電性の安定化における重要な要因として提案されている.
- この研究は,性能を向上した新しい分子ピエゾエレクトリックの探索への道を開きます.
- 開発された材料は,柔軟な電子機器における実用的な応用が期待されます.
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