Bandaru, P. R. and Daraio, C. and Yang, K. and Rao, A. M. (2007) A plausible mechanism for the evolution of helical forms in nanostructure growth. Journal of Applied Physics, 101 (9). Art. No. 094307. ISSN 0021-8979 http://resolver.caltech.edu/CaltechAUTHORS:BANjap07
See Usage Policy.
Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:BANjap07
The observation of helices and coils in nano-tube/-fiber (NT/NF) syntheses is explained on the basis of the interactions between specific catalyst particles and the growing nanostructure. In addition to rationalizing nonlinear structure, the proposed model probes the interplay between thermodynamic quantities and predicts conditions for optimal growth. Experimental results on the effect of indium catalyst on affecting the coil pitch in NTs and NFs are presented.
|Additional Information:||©2007 The American Physical Society (Received 16 February 2007; accepted 2 March 2007; published online 9 May 2007) We gratefully acknowledge support from the National Science Foundation (Grants No. ECS-05–08514 and DMI-0304019) and the Office of Naval Research (Award number N00014–06–1-0234). We also appreciate the use of the facilities at the National Center for Electron Microscopy (NCEM) at the Lawrence Berkeley National Laboratory, Berkeley, CA.|
|Subject Keywords:||nanotubes; fibres; nanotechnology; indium; catalysis; thermodynamics|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Archive Administrator|
|Deposited On:||16 Aug 2007|
|Last Modified:||26 Dec 2012 09:39|
Repository Staff Only: item control page