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

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.

Citation

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 . https://doi.org/10.1063/1.3624456

Publication

AIP Advances

Status

Peer reviewed

DOI

https://doi.org/10.1063/1.3624456

ISSN

2158-3226

Type

Journal article

Rights

Description

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.

Collections

University of St Andrews Research

URI

http://hdl.handle.net/10023/4317