Understanding Single-Walled Carbon Nanotube Growth for Chirality Controllable Synthesis,Accounts of Materials Research

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Understanding Single-Walled Carbon Nanotube Growth for Chirality Controllable Synthesis
Accounts of Materials Research ( IF 14.0 ) Pub Date : 2021-08-12 , DOI: 10.1021/accountsmr.1c00111
Lu Qiu ₁ , Feng Ding _{1,

2}

Affiliation

Chirality defines the structural and electronic properties of a single-walled carbon nanotube (SWCNT), and therefore, synthesizing SWCNT samples with single chirality is essential for future high-end applications, such as replacing silicon in next-generation electronics. Since its discovery in 1991, to realize the selective growth of SWCNTs with a unique structure has been a key focus of SWCNT research. Chirality is currently understood to be assigned at birth and might be changed during the growth process. Understanding the mechanism of chirality assignment during nucleation and chirality-dependent growth kinetics is essential for realizing the final goal of SWCNT synthesis, i.e., the large-scale synthesis of SWCNTs with a specific chiral index. From 2003, we have systematically explored chirality assignment during SWCNT nucleation, how the chirality of a SWCNT affects its growth, and how the chirality changes during growth. Together with our experimental collaborators, we have realized the chirality-specific growth of SWCNTs via a few designed experimental routes. In this account, we will review all these studies and present our perspectives on this very important research topic.

中文翻译：

了解手性可控合成的单壁碳纳米管生长

手性定义了单壁碳纳米管 (SWCNT) 的结构和电子特性，因此，合成具有单手性的 SWCNT 样品对于未来的高端应用至关重要，例如在下一代电子产品中替代硅。自 1991 年发现以来，实现具有独特结构的单壁碳纳米管的选择性生长一直是单壁碳纳米管研究的重点。手性目前被认为是在出生时分配的，可能会在生长过程中改变。理解成核过程中手性分配的机制和手性依赖的生长动力学对于实现单壁碳纳米管合成的最终目标至关重要，即大规模合成具有特定手性指数的单壁碳纳米管。从 2003 年开始，我们系统地探索了 SWCNT 成核过程中的手性分配，SWCNT 的手性如何影响其生长，以及手性在生长过程中如何变化。与我们的实验合作者一起，我们通过一些设计的实验路线实现了 SWCNTs 的手性特异性生长。在这个帐户中，我们将回顾所有这些研究，并提出我们对这个非常重要的研究课题的看法。

更新日期：2021-09-24

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