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Nanotube-Based 1D Heterostructures Coupled by van der Waals Forces
Small ( IF 13.0 ) Pub Date : 2021-08-06 , DOI: 10.1002/smll.202102585
Sofie Cambré 1 , Ming Liu 2 , Dmitry Levshov 1 , Keigo Otsuka 2 , Shigeo Maruyama 2 , Rong Xiang 2
Affiliation  

1D van der Waals heterostructures based on carbon nanotube templates are raising a lot of excitement due to the possibility of creating new optical and electronic properties, by either confining molecules inside their hollow core or by adding layers on the outside of the nanotube. In contrast to their 2D analogs, where the number of layers, atomic type and relative orientation of the constituting layers are the main parameters defining physical properties, 1D heterostructures provide an additional degree of freedom, i.e., their specific diameter and chiral structure, for engineering their characteristics. The current state-of-the-art in synthesizing 1D heterostructures are discussed here, in particular focusing on their resulting optical properties, and details the vast parameter space that can be used to design heterostructures with custom-built properties that can be integrated into a large variety of applications. First, the effects of van der Waals coupling on the properties of the simplest and best-studied 1D heterostructure, namely a double-walled carbon nanotube, are described, and then heterostructures built from the inside and the outside are considered, which all use a nanotube as a template, and, finally, an outlook is provided for the future of this research field.

中文翻译:

范德华力耦合的基于纳米管的一维异质结构

基于碳纳米管模板的一维范德华异质结构引起了很多人的兴趣,因为它可以通过将分子限制在空心内或在纳米管外部添加层来创造新的光学和电子特性。与 2D 类似物相比,层数、原子类型和构成层的相对取向是定义物理性质的主要参数,1D 异质结构为工程提供了额外的自由度,即它们的特定直径和手性结构他们的特点。此处讨论了合成一维异质结构的当前最先进技术,特别关注其产生的光学特性,并详细介绍了可用于设计具有定制特性的异质结构的巨大参数空间,这些特性可以集成到各种应用中。首先,描述了范德华耦合对最简单和研究最深入的一维异质结构,即双壁碳纳米管的性质的影响,然后考虑了从内部和外部构建的异质结构,它们都使用了纳米管作为模板,最后对该研究领域的未来进行了展望。
更新日期:2021-09-23
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