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相关概念视频

Network Covalent Solids02:18

Network Covalent Solids

Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...

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相关实验视频

Updated: Jun 7, 2026

Simultaneous Synthesis of Single-walled Carbon Nanotubes and Graphene in a Magnetically-enhanced Arc Plasma
09:48

Simultaneous Synthesis of Single-walled Carbon Nanotubes and Graphene in a Magnetically-enhanced Arc Plasma

Published on: February 2, 2012

管状石墨形的形石墨.

Guangyu Zhang1, Xin Jiang, Enge Wang

  • 1Fraunhofer Institute for Surface Engineering and Thin Films, Bienroder Weg 54 E, 38108 Braunschweig, Germany.

Science (New York, N.Y.)
|April 19, 2003
PubMed
概括
此摘要是机器生成的。

研究人员通过化学蒸气沉积合成了具有纳米尖端的新型管状石墨. 这些结构为扫描探针显微镜应用提供了增强的刚性和更容易的安装.

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Fabrication, Densification, and Replica Molding of 3D Carbon Nanotube Microstructures
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Effect of Bending on the Electrical Characteristics of Flexible Organic Single Crystal-based Field-effect Transistors
08:43

Effect of Bending on the Electrical Characteristics of Flexible Organic Single Crystal-based Field-effect Transistors

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相关实验视频

Last Updated: Jun 7, 2026

Simultaneous Synthesis of Single-walled Carbon Nanotubes and Graphene in a Magnetically-enhanced Arc Plasma
09:48

Simultaneous Synthesis of Single-walled Carbon Nanotubes and Graphene in a Magnetically-enhanced Arc Plasma

Published on: February 2, 2012

Fabrication, Densification, and Replica Molding of 3D Carbon Nanotube Microstructures
09:23

Fabrication, Densification, and Replica Molding of 3D Carbon Nanotube Microstructures

Published on: July 2, 2012

Effect of Bending on the Electrical Characteristics of Flexible Organic Single Crystal-based Field-effect Transistors
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Effect of Bending on the Electrical Characteristics of Flexible Organic Single Crystal-based Field-effect Transistors

Published on: November 7, 2016

科学领域:

  • 材料科学 材料科学 材料科学
  • 纳米技术纳米技术
  • 固态物理 固态物理

背景情况:

  • 碳纳米管广泛用于扫描探针显微镜.
  • 需要更为刚性和易于安装的探头尖端.
  • 控制碳基纳米材料的结构对于先进的应用至关重要.

研究的目的:

  • 为了合成和表征新的管状石墨.
  • 为了研究这些石墨的结构性质.
  • 评估它们在扫描探针显微镜中的潜在应用.

主要方法:

  • 化学蒸汽沉积 (CVD) 用于合成.
  • 使用显微镜技术进行了形态分析.
  • 结构特征的重点是石墨板的性和排列.

主要成果:

  • 成功合成了带有纳米尖和微米根的管状石墨.
  • 圆具有中空内部,直径从2到数十纳米.
  • 不断缩短的石墨层的独特结构创造了形状.
  • 构成石墨板的组成部分表现出均的齐克扎克性,使结构控制成为可能.

结论:

  • 合成的管状石墨为扫描探针显微镜中碳纳米管提供了一个有希望的替代方案.
  • 它们固有的刚性和易于安装是显著的优势.
  • 控制的奇拉性为量身定制的管状碳结构提供了潜力.