Two broad classes of carbon nanotubes are recognized: Single-walled carbon nanotubes (SWCNTs) have diameters around 0.5–2.0 nanometres, about 100,000 times smaller than the width of a human hair. They can be idealised as cutouts from a two-dimensional graphene sheet rolled up to form a hollow cylinder.

单壁碳纳米管（SWCNT或SWNT），全部由碳原子构成，几何结构可以视为由单层石墨烯卷曲而成，结构决定性质，因此单壁碳纳米管具有优异的电子、机械、力学等性能。

Single walled carbon nanotubes (SWCNTs) can be considered as a single long wrapped graphene sheet. Nanotubes generally have a length to diameter ratio of about 1000 and hence considered nearly one-dimensional structures. SWCNTs generally have a diameter close to 1 nm and are multiple thousand times longer in length.

2021年5月12日 · Carbon nanotubes fundamentally fall into two classes: single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs). Despite the obvious commonality, SWCNTs and MWCNTs have significantly different physical properties from each other because of their structural differences.

Single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) have some similarities and some key differences. Both materials are made from hexagonal lattices of carbon, specifically graphene sheets rolled up to form tubular structures.

Single-walled carbon nanotubes (SWCNTs) have been considered as one of the most promising electronic materials for the next-generation electronics in the more Moore era. Sub-10 nm SWCNT-field effect transistors (FETs) have been realized with several performances exceeding those of Si-based FETs at the same feature size.

单壁碳纳米管（SWCNTs）具有极高 载流子迁移率 和载流能力，已成为下一代电子和 光电子集成电路 （IC）的潜在候选者。 SWCNTs的能带结构由其原子排列结构决定，具有结构可调的光学和电学性质，建立SWCNTs的光学和电学性质与其结构之间的关系对于设计高性能碳基电子和光电器件至关重要。 研究成果.

单壁碳纳米管（SWCNT）具有单层碳原子，直径约为1-2纳米。 相比之下，多壁碳纳米管（MWCNT）具有多层具有同心中心的碳原子。

Single-walled carbon nanotubes (SWCNTs) are hollow, long cylinders with extremely large aspect ratios, made of one atomic sheet of carbon atoms in a honeycomb lattice. They possess extraordinary thermal, mechanical, and electrical properties and are considered as one of the most promising nanomaterials for applications and basic research.

尽管单壁碳纳米管和多壁碳纳米管的名称相似，但它们的性质和对材料的影响却不同，类似单层石墨烯（单层碳原子）和石墨（多层碳原子）的区别。 为什么以前人们没有使用单壁碳纳米管？ 在自然界中，单壁碳纳米管是不完全燃烧的产物。 这就是为什么森林火灾后的树木灰烬中含有数千吨单壁碳纳米管的原因。 1976年，日本科学家远藤守信在奥尔良大学进行研究时发现了纳米管。 数十载的研究证实，单壁碳纳米管可以作为地球上大多数材料的通用添加剂。 然而，单壁碳纳 …