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Dresden 2011 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 21: TR: Nanoelectronics III - Molecular Electronics 2

TT 21.2: Vortrag

Dienstag, 15. März 2011, 10:45–11:00, HSZ 301

Highly controllable fabrication of horizontally aligned single walled carbon nanotubes — •Imad Ibrahim1,2, Alicja Bachmatiuk2, Jan Blüher1, Felix Börrnert2, Mark H. Rümmeli2,3, Bernd Büchner2, and Gianaurelio Cuniberti11Institute for Materials Science, TU-Dresden, 01062 Dresden, Germany — 2Institute for Solid State Research, IFW Dresden, 01171 Dresden, Germany — 3Department of Physics, TU-Dresden, 01062 Dresden, Germany

Single-walled carbon nanotubes (SWCNTs) are considered a promising material for future nanoelectronics because of their excellent electronic and physical properties. Their electronic properties strongly depend on their diameter and chiral angle. SWCNTs are divided into metallic and semiconductor SWCNTs. High yield semiconductor horizontally well-aligned SWCNT are essential for molecular electronics applications, in which one needs to fabricate parallel active devices, such as diodes and transistors. In this study, well-defined protocols have been developed for growing horizontally well-aligned carbon nanotubes in high yield via chemical vapor deposition. The developed route provides a high degree of control of various aspects, such as the tube length, yield, quality and the alignment of the tubes. The as-grown CNT are characterized with different techniques; scanning electron microscopy, atomic force microscopy, Raman spectroscopy and transmission electron microscopy.

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