多機能ナノポラスグラフェンのボトムアップ合成
César Moreno1, Manuel Vilas-Varela2, Bernhard Kretz3
1Catalan Institute of Nanoscience and Nanotechnology (ICN2), Consejo Superior de Investigaciones Científicas (CSIC) and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain. cesar.moreno@icn2.cat diego.pena@usc.es aitor.mugarza@icn2.cat.
Science (New York, N.Y.)
|April 14, 2018
まとめ
研究者たちは 調節可能なナノ孔状のグラフェンを 創出するボトムアップの方法を開発しました この高度な材料は 半導体として機能し 効率的な分子シートで 同時にシートと電気センシングを可能にします
科学分野:
- 材料科学
- ナノテクノロジー
- 凝縮物質物理学
背景:
- グラフェンのユニークな性質は ナノ孔によって調整され 半導体と高効率の 分子に変換できます
- 現在の上から下への製造方法は 特定の用途のナノメートルスケールの 毛穴を正確に制御する上で 課題に直面しています
研究 の 目的:
- 精密に制御された孔の特性を持つナノ孔性のグラフェンを合成するためのボトムアップ戦略を開発する.
- 合成されたナノポラスグラフェンの電子特性と潜在的な応用を調査する.
主な方法:
- 設計された分子前駆体によるボトムアップアプローチを用いたナノ孔性のグラフェンの合成.
- 孔の大きさ,密度,形状,化学組成に対する原子精度制御.
- 材料のバンド構造と電子的振る舞いを分析するための電子的特徴付け.
主要な成果:
- 1ナノメートルの範囲まで調整可能な オーダーされた孔の配列を持つナノ孔グラフェンの 合成に成功しました
- 分子前駆体設計による孔の特性に対する原子レベルの制御の実証.
- 極度にアニゾトロプの電子構造を発見し,正交1Dの電子帯と狭い孔の状態で,その結果,約1電子ボルトのエネルギーギャップが生じた.
結論:
- このボトムアップ・メソッドは ナノポーラスグラフェンの製造に 前例のない制御を提供します
- 合成された材料は,高度なアプリケーションに適した多機能半導体特性を示しています.
- ナノ孔性のグラフェンは同時に 分子シートと電気センサーの 適用に適しています
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