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Issue 40, 2015
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Photoluminescence enhancement of aligned arrays of single-walled carbon nanotubes by polymer transfer

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Abstract

The photoluminescence of as-grown, aligned single-walled carbon nanotubes (SWNTs) on quartz is strongly quenched and barely detectable. Here we show that transferring these SWNTs to another substrate such as clean quartz or glass increases their emission efficiency by up to two orders of magnitude. By statistical analysis of large nanotube arrays we show at what point of the transfer process the emission enhancement occurs and how it depends on the receiving substrate and the employed transfer polymer. We find that hydrophobic polystyrene (PS) as the transfer polymer results in higher photoluminescence enhancement than the more hydrophilic poly(methyl methacrylate) (PMMA). Possible mechanisms for this enhancement such as strain relief, disruption of the strong interaction of SWNTs with the substrate and localized emissive states are discussed.

Graphical abstract: Photoluminescence enhancement of aligned arrays of single-walled carbon nanotubes by polymer transfer

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Supplementary files

Article information


Submitted
31 Jul 2015
Accepted
11 Sep 2015
First published
24 Sep 2015

This article is Open Access

Nanoscale, 2015,7, 16715-16720
Article type
Paper
Author version available

Photoluminescence enhancement of aligned arrays of single-walled carbon nanotubes by polymer transfer

M. Schweiger, Y. Zakharko, F. Gannott, S. B. Grimm and J. Zaumseil, Nanoscale, 2015, 7, 16715
DOI: 10.1039/C5NR05163K

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

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    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
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    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
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    [Original citation] - Published by The Royal Society of Chemistry.

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