Kauffman, DR and Sorescu, DC and Schofield, DP and Allen, BL and Jordan, KD and Star, A
(2010)
Understanding the sensor response of metal-decorated carbon nanotubes.
Nano Letters, 10 (3).
958 - 963.
ISSN 1530-6984
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Abstract
We have explored the room temperature response of metal nanoparticle decorated single-walled carbon nanotubes (NPSWNTs) using a combination of electrical transport, optical spectroscopy, and electronic structure calculations. We have found that upon the electrochemical growth of Au NPs on SWNTs, there is a transfer of electron density from the SWNT to the NP species, and that adsorption of CO molecules on the NP surface is accompanied by transfer of electronic density back into the SWNT. Moreover, the electronic structure calculations indicate dramatic variations in the charge density at the NP-SWNT interface, which supports our previous observation that interfacial potential barriers dominate the electrical behavior of NP-SWNT systems. © 2010 American Chemical Society.
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Details
Item Type: |
Article
|
Status: |
Published |
Creators/Authors: |
|
Date: |
10 March 2010 |
Date Type: |
Publication |
Journal or Publication Title: |
Nano Letters |
Volume: |
10 |
Number: |
3 |
Page Range: |
958 - 963 |
DOI or Unique Handle: |
10.1021/nl903888c |
Schools and Programs: |
Dietrich School of Arts and Sciences > Chemistry |
Refereed: |
Yes |
ISSN: |
1530-6984 |
MeSH Headings: |
Computer Simulation; Conductometry--instrumentation; Crystallization--methods; Equipment Design; Equipment Failure Analysis; Gold--chemistry; Materials Testing; Models, Theoretical; Nanotechnology--methods; Nanotubes, Carbon--chemistry; Nanotubes, Carbon--ultrastructure; Particle Size; Transducers |
PubMed ID: |
20155969 |
Date Deposited: |
12 Nov 2012 14:56 |
Last Modified: |
02 Feb 2019 15:56 |
URI: |
http://d-scholarship-dev.library.pitt.edu/id/eprint/16166 |
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