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PbS Nanocrystal “Plasma-Polymerization”

Published online by Cambridge University Press:  26 February 2011

Ludovico Cademartiri
Affiliation:
lcademar@chem.utoronto.ca, University of Toronto, Chemistry, 80, St. George Street, Toronto, ON, M5S 3H6, Canada, 1-416-9786722, 1-416-9712011
Georg von Freymann
Affiliation:
georg.freymann@physik.uni-karlsruhe.de, Universität Karlsruhe, Institut für Angewandte Physik, Germany
Andre C. Arsenault
Affiliation:
aarsenau@chem.utoronto.ca, University of Toronto, Chemistry, Canada
Jacopo Bertolotti
Affiliation:
bertolotti@lens.unifi.it, European Laboratory for Non-linear Spectroscopy (LENS) and INFM-Matis, Italy
Diederik S. Wiersma
Affiliation:
wiersma@lens.unifi.it, European Laboratory for Non-linear Spectroscopy (LENS) and INFM-Matis, Italy
Vladimir Kitaev
Affiliation:
vkitaev@wlu.ca, Wilfrid Laurier University, Chemistry, Canada
Geoffrey A. Ozin
Affiliation:
gozin@chem.utoronto.ca, University of Toronto, Chemistry, Canada
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Abstract

We here demonstrate the use of semiconductor chalcogenide nanocrystals as single-source precursors for the one-step formation of flexible functional films. By taking advantage of the surface chemistry of these “zero-dimensional” building blocks we obtain close-packed three-dimensional arrays of nanocrystals interconnected by oxide sheaths. The films are obtained by exposing oxidation-resistant nanocrystals to an air plasma treatment. This treatment does not significantly influence the photoluminescence efficiency of the individual nanocrystal building blocks but confers them resilience to bending as well as resistance to acidic environments, hot solvents, annealing, and UV irradiation.

Type
Research Article
Copyright
Copyright © Materials Research Society 2006

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