高性能,環境安定の分子単層装置のための金属ナノ粒子接触
Gabriel Puebla-Hellmann1,2, Koushik Venkatesan3,4, Marcel Mayor5,6,7
1IBM Research - Zurich, Rüschlikon, Switzerland. gpu@zurich.ibm.com.
Nature
|July 12, 2018
まとめ
研究者は分子電子機器のための 新しいトップコンタクト方法を開発しました この技術は金属ナノ粒子を使って 信頼性の高い電気コンタクトを作成し, 分子機能を損なうことなく 安定した金属分子金属装置の大量製造を可能にします
科学分野:
- 材料科学
- ナノテクノロジー
- 分子電子
背景:
- 信頼性の高い電気コンタクトは,電子,光放出,センサーにおける分子機能の利用に不可欠です.
- 既存の自己組み立て単層 (SAM) サンドイッチアーキテクチャには,破壊的でない上部接触製造が必要であり,これは大きな課題でした.
- 以前の方法では フィルムの整合性や分子機能 量産の互換性が損なわれることが多い
研究 の 目的:
- 自己組み立てモノレイヤー (SAM) ベースの装置のための,破壊的でない,新しいトップコンタクト製造方法を開発する.
- 固有の分子特性を損なうことなく 安定した分子電子機器の大量生産を可能にします
- 固体装置に分子化合物を統合するためのスケーラブルな経路を実証する.
主な方法:
- メタリックナノ粒子が直接介電マトリックス孔に閉じ込められたSAMに適合して非破壊的に堆積する.
- ナノ粒子層の強化により,金属を蒸発させ,上部に接触する.
- 製造プロセスの分子特性への影響を評価するために,SAMの組成を体系的に変化させる.
主要な成果:
- ナノ粒子トップコンタクトアプローチを用いて,何千もの同一で環境安定な金属分子金属装置の製造に成功しました.
- ナノ粒子層と上部の金属化によって,固有の分子特性が影響を受けないことを示す.
- この方法は,2つのアンカーグループを持つ密集した分子に対して一般的であり,単一分子レベルまでスケーラブルです.
結論:
- 開発されたナノ粒子ベースのトップコンタクトメソッドは,SAMデバイスの製造における以前の制限を克服しています.
- このアプローチは,分子電子の大規模統合のための実行可能な経路を提供します.
- この技術は分子機能を維持し,大量生産の要求と互換性があります.
関連する概念動画
Reaction Yield
60.0K
The theoretical yield of a reaction is the amount of product estimated to form based on the stoichiometry of the balanced chemical equation. The theoretical yield assumes the complete conversion of the limiting reactant into the desired product. The amount of product that is obtained by performing the reaction is called the actual yield, and it may be less than or (very rarely) equal to the theoretical yield.
60.0K
Metallic Solids
20.8K
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....
20.8K
ATP Yield
79.0K
Cellular respiration produces 30 - 32 ATP per glucose molecule. Although most of the ATP results from oxidative phosphorylation and the electron transport chain (ETC), 4 ATP are gained beforehand (2 from glycolysis and 2 from the citric acid cycle).
The ETC is embedded in the inner mitochondrial membrane and is comprised of four main protein complexes and an ATP synthase. NADH and FADH2 pass electrons to these complexes, which pump protons into the intermembrane space. This distribution of...
The ETC is embedded in the inner mitochondrial membrane and is comprised of four main protein complexes and an ATP synthase. NADH and FADH2 pass electrons to these complexes, which pump protons into the intermembrane space. This distribution of...
79.0K
Alkali Metals
24.9K
Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals
Table 1: Properties of the alkali metals
24.9K
Metal-Ligand Bonds
24.4K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
24.4K
Properties of Transition Metals
30.0K
Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.
30.0K


