Formation of Ordered vs Disordered Carbon Nanotube Serpentines on Anisotropic vs Isotropic Substrates
| Autor: | Noam Geblinger, Ariel Ismach, Nitzan Shadmi, Ernesto Joselevich |
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| Rok vydání: | 2014 |
| Předmět: |
Work (thermodynamics)
Nanotube Substrate Interaction Materials science Isotropy Nanotechnology Carbon nanotube Substrate (electronics) Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention Condensed Matter::Materials Science General Energy law Chemical physics Physical and Theoretical Chemistry Anisotropy |
| Zdroj: | The Journal of Physical Chemistry C. 118:14044-14050 |
| ISSN: | 1932-7455 1932-7447 |
| Popis: | Single-wall carbon nanotubes are attractive building blocks for various devices, though the ability to arrange them into complex structures is a vital prerequisite for realizing their full potential. Our group has shown that by combining gas flow alignment and the anisotropy of the nanotube–substrate interaction, highly periodic ordered nanotube serpentines are formed. In this work we demonstrate the formation of a different type of nanotube serpentines by isotropic substrate interaction. By comparing the geometric properties and correlation lengths of the two types of serpentines, we show that these nanotube serpentines are markedly random and disordered, in comparison with the ordered serpentines. This also allows us to investigate the role of substrate anisotropy on the formation of nanotube serpentines. We also propose a general mechanism for the formation of self-organized curved nanotube geometries, such as serpentines and loops, on substrates. |
| Databáze: | OpenAIRE |
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