Growth Mechanism of Carbon Nanotubes: a Nano Czochralski Model

Overview

Journal Nanoscale Res Lett

Publisher Springer

Specialty Biotechnology

Date 2012 Jul 4

PMID 22747835

Citations 2

Authors

Jingyu Lu

Jianmin Miao

Affiliations

Soon will be listed here.

Abstract

Carbon nanotubes (CNTs) have been under intense investigations during the past two decades due to their unique physical and chemical properties; however, there is still no commonly accepted growth mechanism to describe the growth behavior of CNTs. Here, we propose a nano Czochralski (CZ) model which regards the catalytic growth of a CNT as a CZ process taking place on the nano scale. The main idea is that, during the CNT growth, each catalyst particle acts as a nano crucible to nucleate and maintain the CNT growth, and the extruding CNT rotates relative to the nano crucible, leading to a chirality-dependent growth rate. In this case, the structural quality gradually changes along the CNT due to the dynamic generation-reconstruction-diffusion of defects during the CNT growth. The nano CZ mechanism may also apply to the catalytic growth of many other one-dimensional (1D) nanostructures (including various nanotubes and nanowires), thus further efforts will be stimulated in the quality and property control, as well as application explorations of these 1D nanomaterials.

Citing Articles

Ultrafast growth of carbon nanotubes using microwave irradiation: characterization and its potential applications.

Baghel P, Sakhiya A, Kaushal P Heliyon. 2022; 8(10):e10943.

PMID: 36276756 PMC: 9582729. DOI: 10.1016/j.heliyon.2022.e10943.

Carbon Nanotube Assembly and Integration for Applications.

Venkataraman A, Amadi E, Chen Y, Papadopoulos C Nanoscale Res Lett. 2019; 14(1):220.

PMID: 31263975 PMC: 6603253. DOI: 10.1186/s11671-019-3046-3.

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