Ultra-portable explosives sensor based on a CMOS fluorescence lifetime analysis micro-system
Source abstract
Abstract
This work explores the use of a green-light-emitting copolymer as a chemosensor to detect nitroaromatic-based explosive vapors by recording photoluminescence (PL) and time-resolved PL decay. We show successful detection of 10 ppb 1,4-dinitrobenzene (DNB) vapor. Both a conventional time-correlated single photon counting (TCSPC) device and CMOS time-resolved fluorescence lifetime micro-system are used in the DNB detection. An ultra-portable on-site explosive sensor based on the micro-system has also been demonstrated. This gives rise to the potential for real-time, reliable, inexpensive organic/inorganic hybrid explosives detection.
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Research context
OpenAlex topics: Luminescence and Fluorescent Materials · Molecular Sensors and Ion Detection · Mass Spectrometry Techniques and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
University of St. Andrews 1 Organic Semiconductor Centre, SUPA, School of Physics and Astronomy, , North Haugh, St. Andrews, Fife KY16 9SS, United Kingdom
University of Edinburgh 2 Institute for Integrated Micro and Nano Systems, School of Engineering, , King's Buildings, Edinburgh, EH9 3JL, United Kingdom
University of Strathclyde 3 Institute of Photonics, SUPA, , Wolfson Centre, 106 Rottenrow, Glasgow, G4 0NW, United Kingdom
References (17)
Show source-provided references
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