Issue 6, 2010
From the journal:

Nanoscale

Measuring the lengthening kinetics of aligned nanostructures by spatiotemporal correlation of height and orientation

Eric R. Meshot,†a   Mostafa Bedewy,†a   Kevin M. Lyons,a   Arthur R. Woll,b   K. Anne Juggernauth,ac   Sameh Tawficka  and  A. John Hart*a  

* Corresponding authors

a Department of Mechanical Engineering, University of Michigan, 2350 Hayward Street, Ann Arbor, MI 48109, USA
E-mail: ajohnh@umich.edu
Tel: + 734.615.6146

b Cornell High Energy Synchrotron Source, Cornell University, Wilson Lab, Route 366 & Pine Tree Road, Ithaca, NY 14853, USA

c Macromolecular Science and Engineering Research Center, University of Michigan, 2300 Hayward Street, Ann Arbor, MI 48109, USA

Abstract

Owing to their inherent tortuosity, the collective height of vertically aligned nanostructures does not equal the average length of the individual constituent nanostructures, and therefore temporal height measurement is not an accurate measure of the genuine growth kinetics. We use high-resolution spatial mapping of alignment by small-angle X-ray scattering (SAXS) to transform real-time measurements of array height to the average length of the nanostructures. Applying this approach to carbon nanotube (CNT) forest growth transforms the kinetics from a sub-linear to a linear relationship with time, highlighting the potential for insights into the limiting growth mechanisms of CNTs and other one-dimensional nanostructures.

Graphical abstract: Measuring the lengthening kinetics of aligned nanostructures by spatiotemporal correlation of height and orientation

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Article information

DOI
https://doi.org/10.1039/B9NR00343F
Article type
Communication
Submitted
09 Nov 2009
Accepted
15 Feb 2010
First published
29 Mar 2010

Nanoscale, 2010,2, 896-900

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Measuring the lengthening kinetics of aligned nanostructures by spatiotemporal correlation of height and orientation

E. R. Meshot, M. Bedewy, K. M. Lyons, A. R. Woll, K. A. Juggernauth, S. Tawfick and A. J. Hart, Nanoscale, 2010, 2, 896 DOI: 10.1039/B9NR00343F

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