Nanotech 2008 Vol. 1
Nanotech 2008 Vol. 1
Nanotechnology 2008: Materials, Fabrication, Particles, and Characterization - Technical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, Volume 1

Nanofabrication & Direct-Write Nanolithography Chapter 4

Nanolithographic Patterning of Catalysts for Synthesis of Carbon Nanotubes

Authors: R.V. Gargate, D. Banerjee

Affilation: Texas A&M University, United States

Pages: 521 - 524

Keywords: carbon nanotube, CNT, DPN, dip pen

Abstract:
Carbon nanotubes (CNT) were synthesized on specially custom designed MEMS chips under ambient conditions without requiring conventional Chemical vapor deposition(CVD) apparatus or process gases. In this approach, a layer of fullerene (C60) of 200 nm thickness was vapor deposited on the chip. Later, dip pen nanolithography (DPN) techniques were utilized for deposition of aqueous metal salt catalyst precursors on the chips in predifined patterns and locations. The temperature of this chip then was raised upto 500 C with the help of external heater at a certain power. This was done in a minimal humidity nitrogen filled environment which served to prevent the possible oxidation of the Deposited fullerene. Characterization of the In-situ synthesized CNTs was performed using Raman Spectroscopy and Scanning Electron Microscopy.


ISBN: 978-1-4200-8503-7
Pages: 1,118
Hardcopy: $159.95

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