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Thermal control of organic semiconductors for trace detection of explosives
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dc.contributor.author | Ogugu, Edward B. | |
dc.contributor.author | Gillanders, Ross N. | |
dc.contributor.author | Mohammed, Salam | |
dc.contributor.author | Turnbull, Graham A. | |
dc.date.accessioned | 2023-11-15T10:30:06Z | |
dc.date.available | 2023-11-15T10:30:06Z | |
dc.date.issued | 2023-11-21 | |
dc.identifier | 296445037 | |
dc.identifier | 2c9de803-af8b-464b-993e-15be60e34360 | |
dc.identifier | 85176100152 | |
dc.identifier.citation | Ogugu , E B , Gillanders , R N , Mohammed , S & Turnbull , G A 2023 , ' Thermal control of organic semiconductors for trace detection of explosives ' , Physical Chemistry Chemical Physics , vol. 25 , no. 43 , pp. 29548-2955 . https://doi.org/10.1039/d3cp02868b | en |
dc.identifier.issn | 1463-9076 | |
dc.identifier.other | Jisc: 1453708 | |
dc.identifier.other | ORCID: /0000-0002-8825-3234/work/146965254 | |
dc.identifier.uri | https://hdl.handle.net/10023/28702 | |
dc.description | The authors acknowledge funding from NATO Science for Peace & Security under grant agreement MYP G5355. Edward B. Ogugu acknowledges funding from the Commonwealth Scholarship Commission and the Foreign, Commonwealth and Development Office in the UK. | en |
dc.description.abstract | Organic semiconductors can be applied as ultra-sensitive fluorescent sensors for detecting trace vapours of explosives. The detection of explosives is manifest by the fluorescence quenching of the sensors. However, for many organic fluorescent sensors, the fluorescence quenching is irreversible and imposes a limitation in terms of reusability. Here we present a study of the thermal control of thin-film fluorescent sensors made from the commercial fluorescent polymer Super Yellow (SY). Thermal control of the sensor's temperature results in the desorption of the absorbed analytes, nitroaromatic explosives (2,4-DNT and DNB), and a taggant molecule (DMDNB). The amount of photoluminescence (PL) quenching and the desorption temperature of analytes provides a route to discriminate between the analytes, and additonally make the SY sensors reusable. | |
dc.format.extent | 8 | |
dc.format.extent | 2362540 | |
dc.language.iso | eng | |
dc.relation.ispartof | Physical Chemistry Chemical Physics | en |
dc.subject | QC Physics | en |
dc.subject | DAS | en |
dc.subject.lcc | QC | en |
dc.title | Thermal control of organic semiconductors for trace detection of explosives | en |
dc.type | Journal article | en |
dc.contributor.sponsor | NATO | en |
dc.contributor.institution | University of St Andrews. Organic Semiconductor Centre | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. Centre for Energy Ethics | en |
dc.contributor.institution | University of St Andrews. Sir James Mackenzie Institute for Early Diagnosis | en |
dc.contributor.institution | University of St Andrews. Centre for Biophotonics | en |
dc.identifier.doi | 10.1039/d3cp02868b | |
dc.description.status | Peer reviewed | en |
dc.identifier.grantnumber | MYP G5355 | en |
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