Tuning of Vertically-Aligned Carbon Nanotube Diameter and Areal Density through Catalyst Pre-Treatment
- 7 October 2008
- journal article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 8 (11), 3587-3593
- https://doi.org/10.1021/nl801437c
Abstract
By controlling the timing and duration of hydrogen exposure in a fixed thermal process, we tuned the diameters of carbon nanotubes (CNTs) within a vertically aligned film by a factor of 2, and tuned the areal densities by an order of magnitude. The CNT structure is correlated with the catalyst morphology, suggesting that while chemical reduction of the catalyst layer is required for growth, prolonged H2 exposure not only reduces the iron oxide and enables agglomeration of the Fe film, but also leads to catalyst coarsening. Control of this coarsening process allows tuning of CNT characteristics.This publication has 33 references indexed in Scilit:
- Joining prepreg composite interfaces with aligned carbon nanotubesComposites Part A: Applied Science and Manufacturing, 2008
- Dense Vertically Aligned Multiwalled Carbon Nanotube Arrays as Thermal Interface MaterialsIEEE Transactions on Components and Packaging Technologies, 2007
- Design and Performance Modeling for Single-Walled Carbon Nanotubes as Local, Semiglobal, and Global Interconnects in Gigascale Integrated SystemsIEEE Transactions on Electron Devices, 2006
- Carbon nanotube via interconnect technologies: size‐classified catalyst nanoparticles and low‐resistance ohmic contact formationPhysica Status Solidi (a), 2006
- Rapid Growth and Flow-Mediated Nucleation of Millimeter-Scale Aligned Carbon Nanotube Structures from a Thin-Film CatalystThe Journal of Physical Chemistry B, 2006
- Electrical Properties of Carbon Nanotube Bundles for Future Via InterconnectsJapanese Journal of Applied Physics, 2005
- Carbon Nanotubes--the Route Toward ApplicationsScience, 2002
- Multiwalled Carbon Nanotubes by Chemical Vapor Deposition Using Multilayered Metal CatalystsThe Journal of Physical Chemistry B, 2002
- Carbon NanotubesPublished by Springer Science and Business Media LLC ,2001
- Self-Oriented Regular Arrays of Carbon Nanotubes and Their Field Emission PropertiesScience, 1999