Self-Organization of Carbon Nanotubes in Evaporating Droplets

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)13926-13930
Journal / PublicationJournal of Physical Chemistry B
Volume110
Issue number28
Online published22 Jun 2006
Publication statusPublished - 1 Jul 2006
Externally publishedYes

Abstract

Here, we report a simple and efficient way for organizing carbon nanotubes, in particular, single-wall carbon nanotubes (SWNTs) into ordered structures from their dilute solutions. It was found that drying a droplet of carbon nanotube solution at room temperature on a wettable surface such as glass or silica wafer led to redistribution, accumulation, and organization of carbon nanotubes along the perimeter of the droplet. Unlike the aggregation behaviors of colloid nanoparticles, anistropic carbon nanotubes tended to show two orientations in a ring deposit: one parallel to the outer perimeter of the ring and the other normal to it in the interior. Drying droplets of SWNT solutions at high temperatures exhibited a long-range ordered structure. In addition, droplet drying may cause size separation of carbon nanotubes and pattern formation through interactions between droplets. This result helps us not only to further understand fluid dynamics during the drying process but also to provide a promising and simple strategy for either assembling carbon nanotubes on a surface or organizing them into well-aligned films and fibers. © 2006 American Chemical Society.

Citation Format(s)

Self-Organization of Carbon Nanotubes in Evaporating Droplets. / Li, Qingwen; Zhu, Yuntian T.; Kinloch, Ian A.; Windle, Alan H.

In: Journal of Physical Chemistry B, Vol. 110, No. 28, 01.07.2006, p. 13926-13930.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review