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Proceeding Paper

Thermal Desorption of Explosives Vapour from Organic Fluorescent Sensors †

Organic Semiconductor Centre, School of Physics & Astronomy, SUPA, University of St Andrews, Fife KY16 9SS, UK
*
Author to whom correspondence should be addressed.
Presented at the 1st International Electronic Conference on Chemical Sensors and Analytical Chemistry, 1–15 July 2021; Available online: https://csac2021.sciforum.net/.
Academic Editor: Ling Zang
Chem. Proc. 2021, 5(1), 11; https://doi.org/10.3390/CSAC2021-10559
Published: 1 July 2021
Organic semiconductors can be used as highly sensitive fluorescent sensors for the detection of trace-level vapours of nitroaromatic explosives. This involves fluorescence quenching of the sensors and indicates the presence of explosives in the surrounding environment. However, for many organic fluorescent sensors, the quenching of fluorescence is irreversible and imposes a limitation in terms of the reusability of the sensors. Here, we present a study of thermal desorption of 2,4-DNT from thin-film explosives sensors made from the commercial fluorescent polymers Super Yellow and poly(9-vinyl carbazole). Thermal cycling of the sensor results in recovery of fluorescence, thereby making them reusable. View Full-Text
Keywords: organic semiconductors; nitroaromatic explosives; fluorescence quenching; thermal desorption organic semiconductors; nitroaromatic explosives; fluorescence quenching; thermal desorption
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MDPI and ACS Style

Ogugu, E.B.; Gillanders, R.N.; Turnbull, G.A. Thermal Desorption of Explosives Vapour from Organic Fluorescent Sensors. Chem. Proc. 2021, 5, 11. https://doi.org/10.3390/CSAC2021-10559

AMA Style

Ogugu EB, Gillanders RN, Turnbull GA. Thermal Desorption of Explosives Vapour from Organic Fluorescent Sensors. Chemistry Proceedings. 2021; 5(1):11. https://doi.org/10.3390/CSAC2021-10559

Chicago/Turabian Style

Ogugu, Edward B., Ross N. Gillanders, and Graham A. Turnbull. 2021. "Thermal Desorption of Explosives Vapour from Organic Fluorescent Sensors" Chemistry Proceedings 5, no. 1: 11. https://doi.org/10.3390/CSAC2021-10559

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