Issue 5, 2014

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

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

Supplementary files

Article information

Article type
Communication
Submitted
26 noy 2013
Accepted
08 yan 2014
First published
14 yan 2014

Nanoscale, 2014,6, 2608-2612

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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