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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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Publication details

The article was received on 26 Nov 2013, accepted on 08 Jan 2014 and first published on 14 Jan 2014


Article type: Communication
DOI: 10.1039/C3NR06271F
Author version available: Download Author version (PDF)
Citation: Nanoscale, 2014,6, 2608-2612
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    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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