Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/66041
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Type: Journal article
Title: Solution chemistry approach to fabricate vertically aligned carbon nanotubes on gold wires: towards vertically integrated electronics
Author: Flavel, B.
Yu, J.
Ellis, A.
Quinton, J.
Shapter, J.
Citation: Nanotechnology, 2008; 19(44):1-12
Publisher: IOP Publishing Ltd
Issue Date: 2008
ISSN: 0957-4484
1361-6528
Statement of
Responsibility: 
Benjamin S Flavel, Jingxian Yu, Amanda V Ellis, Jamie S Quinton and Joseph G Shapter
Abstract: A monolayer of hexadecyltrichlorosilane, 3-aminopropyltriethoxysilane or 3-mercaptopropyltrimethoxysilane was self-assembled onto a p-type silicon (100) substrate to provide a resist for electrochemical anodization with an atomic force microscope cantilever. Silane treatment of the oxide nanostructures created by anodization lithography allowed for the creation of a chemically heterogeneous surface, containing regions of −NH2 or −SH surrounded by −CH3 functionality. These patterned regions of −NH2 or −SH provided the point of attachment for citrate-stabilized gold colloid nanoparticles, which act as 'seed' particles for the electro-less deposition of gold. This has allowed the creation of gold wires on a silicon surface. Carbon nanotubes, with high carboxylic acid functionality, were vertically immobilized on the patterned gold wires with the use of a cysteamine monolayer and a condensation reaction. Such a material may prove useful in the creation of future vertically integrated electronic devices where it is desirable for electron transport to be in three dimensions and this electron transport is demonstrated with cyclic voltammetry.
Rights: © 2008 IOP Publishing Ltd.
RMID: 0020104122
DOI: 10.1088/0957-4484/19/44/445301
Appears in Collections:Chemistry publications

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