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Type: Journal article
Title: Optical and Electrochemical Properties of Single-walled Carbon Nanotube Arrays Attached to Silicon (100) Surfaces
Author: Yu, J.
Flavel, B.
Shapter, J.
Citation: Fullerenes, Nanotubes, and Carbon Nanostructures, 2008; 16(1):18-29
Publisher: Taylor and Francis Inc
Issue Date: 2008
ISSN: 1536-383X
Statement of
Jingxian Yu; Benjamin S. Flavel and Joseph G. Shapter
Abstract: Arrays of aligned single-walled carbon nanotubes (SWCNTs) have been attached to a Si (100) surface using two approaches. The first method uses a self-assembled ethyl undecanoate monolayer (SWCNTs-SAM structure), while the second sees the nanotubes attached directly to an ultrathin SiO2 layer (SWCNTs-SiO2 structure). The optical and electrochemical properties of two nanotube arrays were compared by fluorescence spectroscopy and cyclic voltammetry. The results show that the SWCNTs-SiO2 structure has strong coupling between the attached SWCNTs and the silicon substrate, but the coupling gets smaller with increasing size of attached SWCNT bundles. The SWCNTs-SAM structure shows poor conductivity and electrochemical reversibility. The SWCNTs-SiO2 structure does appear to be a very useful substrate for use in further applications.
Keywords: Single-walled carbon nanotubes; surface attachment; electrochemistry; fluorescence emission; coupling effects; silicon
Rights: Copyright © 2011 Taylor & Francis Group, an informa business
RMID: 0020104144
DOI: 10.1080/15363830701779299
Appears in Collections:Chemistry and Physics publications

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