分子ベースの電子的に切り替え可能なトンネル交差点装置
C P Collier1, J O Jeppesen, Y Luo
1California NanoSystems Institute and the Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, USA.
Journal of the American Chemical Society
|December 14, 2001
まとめ
研究者らは,バイスタブルなカタネネン,シドオロタキサン,ロタキサンを用いた分子電子装置を開発した. これらの分子スイッチは調節可能な伝導性を実証し,新しい電子部品の道を開いた.
科学分野:
- 分子電子は分子電子である.
- 超分子化学とは
- マテリアルサイエンス 材料科学
背景:
- 分子スイッチは,高度な電子機器の開発に不可欠です.
- 分子レベルで導電性を制御することは,ナノテクノロジーの主要な課題です.
研究 の 目的:
- 分子単層を用いた固体トンネル結合装置の製造と特徴付け.
- 分子構造,膜特性,およびデバイス性能の間の関係を調査する.
主な方法:
- ビスタブル [2] カテナン,ビスタブル [2] プセウドロタクサン,およびシングルステーション [2] ロタキサンの分子単層のラングミュア・ブロジェット製造.
- 固体トンネル接続装置における電流-電圧 (I-V) 応答の特徴.
- 溶液相ダイナミクスや結晶学ドメイン構造を含む構造-特性相関の分析.
主要な成果:
- 製造されたすべてのデバイスは非容量性のヒステリック電流-電圧応答を示した.
- 装置は,高伝導性と低伝導性の状態を切り替え,分子交換の行動を示した.
- 分子単層のない制御装置は,そのような反応を示さなかった.
結論:
- ビスタブルなカテネン,シドオロタキサン,ロタキサンの分子単層は,固体状態スイッチとして機能することができます.
- デバイスの性能は,分子構造,動力学,フィルム形態学によって影響を受けます.
- これらの発見は,分子エレクトロニクスにおける超分子システムの可能性を示しています.
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