Ultra-portable explosives sensor based on a CMOS fluorescence lifetime analysis micro-system
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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 microsystem 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.
Wang , Y , Rae , B R , Henderson , R K , Gong , Z , Mckendry , J , Gu , E , Dawson , M D , Turnbull , G A & Samuel , I D W 2011 , ' Ultra-portable explosives sensor based on a CMOS fluorescence lifetime analysis micro-system ' AIP Advances , vol 1 , no. 3 , 032115 . DOI: 10.1063/1.3624456
Copyright 2011 Authors. Published by AIP. This article is distributed under a Creative Commons Attribution 3.0 Unported License.
The paper published in AIP Advances (a new journal from the American Institute of Physics) had 1100 article downloads in the first 5 months after publication, and was on the journal’s “most read” list for 4 months. The work was featured by AIP in a Physics News Highlight and press release which resulted in >50 international internet articles and an article in Laser Focus World.
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