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|Title:||Growth mechanism of carbon nanotubes : a nano Czochralski model||Authors:||Lu, Jingyu
|Issue Date:||2012||Source:||Lu, J., & Miao, J. (2012). Growth mechanism of carbon nanotubes : a nano Czochralski model. Nanoscale Research Letters, 7(1), 356.||Series/Report no.:||Nanoscale Research Letters||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.||URI:||https://hdl.handle.net/10356/79832
|ISSN:||1556-276X||DOI:||10.1186/1556-276X-7-356||Rights:||© 2012 The Authors.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||MAE Journal Articles|
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