Ultra-portable explosives sensor based on a CMOS fluorescence lifetime analysis micro-system

作者：Wang Yue; Rae Bruce R; Henderson Robert K; Gong Zheng; Mckendry Jonathan; Gu Erdan; Dawson Martin D; Turnbull Graham A^*; Samuel Ifor D W

来源：AIP Advances, 2011, 1(3): 032115.

DOI：10.1063/1.3624456

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.

• 出版日期2011-9