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Issue 5, 2014
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Detection of high-energy compounds using photoluminescent silicon nanocrystal paper based sensors

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Abstract

Luminescent silicon nanocrystals (Si-NCs) surface functionalized with dodecyl groups were exposed to solutions of nitroaromatic compounds including nitrobenzene, nitrotoluene, and dinitrotoluene. It was found that Si-NC luminescence was quenched upon exposure to nitroaromatics via an electron transfer mechanism as indicated by Stern–Volmer analysis. This quenching was exploited and a straightforward paper-based Si-NC sensor was developed. This paper motif was found to be sensitive to solution, vapor, and solid phase nitroaromatics, as well as solution borne RDX and PETN.

Graphical abstract: Detection of high-energy compounds using photoluminescent silicon nanocrystal paper based sensors

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Supplementary files

Article information


Submitted
26 Nov 2013
Accepted
08 Jan 2014
First published
14 Jan 2014

Nanoscale, 2014,6, 2608-2612
Article type
Communication
Author version available

Detection of high-energy compounds using photoluminescent silicon nanocrystal paper based sensors

C. M. Gonzalez, M. Iqbal, M. Dasog, D. G. Piercey, R. Lockwood, T. M. Klapötke and J. G. C. Veinot, Nanoscale, 2014, 6, 2608
DOI: 10.1039/C3NR06271F

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